瑞領科技 Since 1985

Long Win keeps our visionary steps and is your most reliable partner.


  1. Information, Communication Technology (ICT) Lab
  2. Semiconductor Lab
  3. Fluid Mechanics Lab
  4. Material Analysis Lab
  5. Bio-Medical Lab
  1. Bio-Medical Lab
  2. Structural and Measurement Lab
  3. Calibration and Test Laboratory
  4. 6 work stations

About Us



Long Win’s Core Values

■ We combine extensive and profound knowledge bases with experiments and research.
■ We practice innovative ideas through our own all-in-one factory. We create demands.

 In 2021, Long Win takes part in emerging cooling technology of ICT industry, including liquid cooling, rack-level immersion cooling, and its POC and reliability tests. It contains leading-edge components, sub-system, validation apparatuses for subsystems and systems, and material compatibility examination.

To expect ourselves as a Fundamental, Forward, and the First Institute of Research and Development Center (3F_IRDC),

  1. Airflow bench for fan PQ, system resistance curve (SRC), and heat sink’s RQ performance, torque measurement, etc; 0.05~30000 CFM; >20 models
  2. Heat sink RQ tester; 5~800 CFM; 6 models
  3. Heat Pipe-HP-Thermal Performance Tester
  4. Micro Heat Pipe-MHP- Thermal Performance Tester
  5. Vapor Chamber-VC-Thermal Performance Tester
  6. Ultra-Thin Vapor Chamber-UTVC-Non-contact Transient and Static Thermal Performance Tester
  7. Cold Plate- Thermal Performance Tester
  8. Impedance tester for connectors, piping and Manifolds
  9. Liquid Burst Pressure Tester
  10. 4U Liquid to Liquid CDU
  11. 4U Liquid to Air CDU
  12. 8U Liquid to Liquid CDU
  13. 8U Liquid to Air CDU
  14. Single-phase immersion cooling tester for heat sinks
  15. Two-phase immersion cooling tester for boilers
  16. Two-phase immersion cooling tester for condensers
  17. Air-liquid heat exchanger thermal performance tester; Heat loading: 1~100 kW; Airflow range: 50-10,000 CFM
  18. Pumper performance tester; Flow rate: 0.1-300 LPM; Pressure: 1-600 kPa
  19. POC single-phase immersion cooling tester 1U~24U
  20. POC two-phase immersion cooling tester 1U~24U
  21. Dummy server: 15, 30, 40, 60, 80, 100 kW
  22. Stiffness tester for heat sinks in servers
  23. Natural convection chamber: Ambient+3~70℃; Small, Standard, Medium, and Large types
  24. Natural convection chamber – High temp. Ambient+3~90℃
  25. Natural convection chamber – Ultra high temp. Ambient+3~150℃
  26. Natural convection chamber – Room Temp. 20~70℃
  27. Sunlight natural convection chamber, temperature range 40~70 ℃, Irradiance 1200 w/m2
  28. TIM thermal impedance and conductivity tester; K: 0.02-20 WIm-K
  29. TIM transient and long-term reliability tester
  30. Thermal diffusivity tester for highly-conductive thin-film materials
  31. Isolated Liquid flow measurement for metal and non-metal piping; Flow rate: 0.01-60 LPM; Diameter: 3-32 mm
  32. Various CDU, RPU, back door performance testers
  33. 9 seats of walk-in chambers:To simulate data centers and to test air-cooled, L-A , L-L ,and immersion rack-level systems and rate their performance and reliability

JEDEC Standard for IC Package

  1. Rjc tester: 10-1,500 W
  2. Rja vertical wind tunnel Temperature: 20-80 °C,Wind speed: 0.5-5 m/s
  3. Rja horizontal wind tunnel Temperature: 20-60 °C,Wind speed: 0.5-5 m/s
  4. High-power semiconductor single-phase immersion thermal tester
  5. High-power semiconductor two-phase immersion thermal tester

  1. Micro 16CH temperature measurement / 16CH anemometer
  2. 2K Hz dynamic 16CH PSV for gas
  3. 800 Hz dynamic 16CH PSV for liquid
  4. 100KHz 6CH Pressure Transducer
  5. LDA 0.01 ~ 220 m/s
  6. 2D PIV, 5,000 FPS high-speed camera
  7. 3D PTV, 3 sets high-speed camera
  8. High-frequency hot wire anemometer
  9. High-frequency hot film anemometer
  10. FxㆍFy-50 NㆍFz-200 NㆍMxyz-1 Nm 6-component
  11. Supersonic wind tunnel 1-3.2 Mach
  12. Subsonic wind tunnel: Test section 1x1 m; ~60 m/s
  13. Subsonic wind tunnel: Test section 0.3x0.3 m; ~100 m/s
  14. Subsonic wind tunnel: Test section 0.2x0.2 m; ~ 30 m/s
  15. Closed-loop water tunnel: Test section 0.2x0.3 m; ~3 m/s
  16. Closed-loop water channel: Test section 0.3x0.4 m; ~0.6 m/s
  17. Closed-loop water channel: Test section 0.2x0.3 m; ~0.6 m/s
  18. Closed-loop glycerin channel: Test section 0.2x0.3 m; ~1 m/s
  19. Acceleration water tunnel: 2m/s, 2 m/s2 (to be built)
  20. Variable velocity field wind tunnel: 2-30 m/s;resolution 20mm ( in production )
  21. Acceleration wind tunnel: 30m/s, 15 m/s2 ( in production )

  1. X-ray Fluorescence
  2. PY-GC-MS
  3. ICP-OES
  4. DSC
  5. TGA
  6. SEM
  7. FTIR
  8. Spectrometer
  9. pH & Conductivity meter
  10. Liquid polariscope
  11. Salt spray tester
  12. Ambient plasma generator
  13. Contact angle meter
  14. Supersonic viscometer
  15. Liquid density meter
  16. Confocal Laser Scanning Microscope LSCM
  17. Metallographic microscope and peripherals
  18. Aging environmental test
  19. Thermal Chamber -40~1600 °C
  20. Photoionization Detector
  21. More Liquid Cooling Testers
  22. White Light Interferometry, WLI
  23. Flash point tester
  24. Vapor pressure tester

  1. IR imaging camera
  2. High-frequency non-contact closed-loop heater - 18W, 808nm
  3. TIM static thermal performance tester K:0.02-20 W/mㆍK
  4. TIM transient & long-term reliability tester
  5. Non-contact thermal diffusivity tester for
    6. highly-conductive thin-film materials
  6. Non-contact thermal conductivity tester
  7. TIM1 tester

  1. Scanning phase contrast microscope & 3D imaging software
  2. Scanning polarizing microscope & 3D imaging software
  3. Micron 3D platform

  1. Vibration platform 100N; Accelerometer; Impact hammer;Measurement of natural frequency
  2. Universal tester: 1 MN, 50 kN, 1 kN
  3. Metal hardness tester
  4. Rubber hardness tester
  5. High-strain-rate split Hopkinson bar tester: Compression,tension and torsion
  6. Helium leak detector
  7. White light interferometric scanning profilometer
  8. Industrial stereo microscope
  9. 240 KV, 320 W X-ray Computed Tomography
  10. Rotating power balancer
  11. 100 MHz dynamic strain amplifier 6CH
  12. 200 MHz digital storage oscilloscope
  13. Earthquake simulation test platform: Richter Level 7; Loading 2,000 kg (to be built)
  14. Fully anechoic chamber (to be built)

Calibration lab:Airflow rate, water flow rate, temperature,pressure, and mass Testing lab:Fan performance, Pump performance, Thermal module thermal resistance performance, HP thermal apparent conductivity, VC apparent thermal conductivity, CP thermal resistance, Boiler thermal resistance
  1. Rack - level thermal performance test, including air-cooled, L-A ,L-L ,systems
  2. Immersion tank thermal performance test, including 1-P and 2-P systems
  3. Material Compatibility Testing

TAF 3919 / ILAC-MRA Fan Performance Test Laboratory


In August 2021, a whole new manufacturing building for all-in-one production facilities is completed. It contains all machining workshops, welding, surface treatment, piping, refrigeration, sensors, control, electrical distribution and software development. to manufacture components, products and apparatuses efficiently and accurately.

In 2022, a whole new building for research center is completed, including extended labs and a convention hall. Long Win will participate in leading-edge projects in ICT, electric cars and bio-medical industries.

...


Over 100 kinds of self-developing research instruments are demonstrated in our lab. Besides, we also customize research and test equipment in the thermal & flow field to meet clients’ need.

All products’ research, design, manufacture, assembling and test procedures are executed in Long Win. Our worldwide marketing instruments not only meet international standards, but also are recognized by the third party accredited laboratory for quality certification to provide professional and reliable services.


At present, our products are provided for research institutes, universities, IT, semi-conductor, automobile, air-condition, LED industries all over the world. Long Win shares the most market rate of research apparatus of thermal solutions in IT industry, and plays a very important role.

...

...

The Article Published in Physics of Fluids

Source-like Patterns of Flow past a Circular Cylinder of Finite Span at Low Reynolds Numbers
To see more eye-opening slideshows and videos...Click here to download (278 MB) Learn More

HPC Data Center

...

download HPC


Products-
Liquid Cooling

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Products-
Single Phase Immersion Cooling

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Products-
2-Phase Immersion Cooling

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SPPA Forum

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Long Win LW Position V1.3CH

完整下載
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Public Welfare Forum V1.3CH

 完整下載

...

Thermal Solution of HPC Data Center

完整下載
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Long Win LW Position V1.5ENG

完整下載
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Long Win LW Forum V1.4ENG

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科技企業家的人生對話

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素書

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Proudcts

Products-
Liquid Cooling

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Products-
Single Phase Immersion Cooling

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Products-
2-Phase Immersion Cooling

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 [ Thermal Solutions ]

 [ Fluid Mechanics ]

 [ Impact Testers]

 [ Educational Facilities ]

 [ Measurement Devices]



[Thermal Solutions ]

In this category, we focus on the inspection and research apparatus of cooling components, such as fan, thermal interface material, cooler module, heat pipe, etc. Further, thermal perfoamance of IC package and LED is also crucial for their performance. Various of natural convection chambers and thermal wind tunnels play important role on related testing.

1.Example in IT Products
Go
2.Data Center, Rack and Server
Go
3.Fan Performance
Go
4.Thermal Interface Material
Go

5.Cooler Modules
Go
6.Heat Pipes
Go
7.IC Package
Go
8.Natural Convection
Go

9.LED Thermal Performance
Go
10.Thermal Wind Tunnel
Go
11.Liquid Cooling
Go
12.Related
GO

[Fluid Mechanics ]

Wind tunnel and water tunnel and water channel are basic and key facilities to explore fluid mechanics, aerodynamics, and flow visualization. To cooperate with various kinds of devices and experimental items, they can be extremely powerful instrument for both research and teaching. Long Win has been designed and manufactured them for more than 20 years with good reputation. We also provide water tanks, more and more collocation items and wind tunnel for wind turbine testing to meet updated requirement.
1.AMCA 210 Wind Tunnel
GO
2.Subsonic Wind Tunnel
GO
3.Transonic Wind Tunnel
GO
4.Supersonic Wind Tunnel
GO

5.Water Tunnel
GO
6.Water Tank
GO
7.Light Source and Particles for Flow Visualization
GO
8.Flow Visualization Models
GO

9.Pressure Distribution
GO
10.Force Measurement
GO
11.Wind Turbine Testing
GO

[ Impact Testers]

Split Hopkinson bar tester apparatus are for researching the material properties at high strain rates. With different strain types, Long Win has a series of Split Hopkinson pressure bar (SHPB), Split Hopkinson tension bar, and Split Hopkinson torsion bar. We also provide professional penetration testers in this field.
1.Split Hopkinson Pressure Bar
GO
2.Split Hopkinson Torsion Bar
GO
3.Split Hopkinson Tension Bar
GO
4.Penetration Tester
GO

[Educational Facilities ]

At this moment, we focus on the basic fluid mechanic and thermal & flow experiments for colleges, universities and institutes. Through the standard flow rate generator which follows AMCA 210 Standard, students can proof fundamental principles, such as Bernoulli equation, pressure loss of pipe lines, calibration of flow rate meters, coefficient of discharge and flow visualization of water tunnel and water channel. In thermal and flow experiments, the relationship of thermal resistance and flow rate (RQ), static pressure and flow rate (PQ) and the principle of heat pipes are designed as interesting and easy-to-handle systems.
1.Bernoulli Eq.-Venturi Tube
GO
2.Pipe Line Pressure Loss
GO
3.Air Flow Rate Calibration
GO
4.Orifice and Nozzle's Cd
GO

5.Cooler Module's RQ
GO
6.Fan's PQ Experiment
GO
7.Heat Pipe's Performance
GO
8.Natural and Forced Convection
GO

9.Heat Exchanger Experiment
GO

[ Measurement Devices ]

This category includes measurement of fundamental parameters, such as temperature, pressure, wind speed. Long Win provides PWM mode controller in electrical field and DAQ software for data acquisition while doing experiments.
1.Temperature
GO
2.Pressure
GO
3.Wind Speed
GO
4.PWM
GO

5.Data Acquisition Software
GO

Product Catalogues

Catalogues - Chinese Version Thermal Solutions
Comprehensive Introduction for Industries AMCA 210 Wind Tunnel Series Intro. Thermal Interface Material Cooler Module Heat Pipe and Vapor Chamber LW-9383 LED Tj Thermal Resistance Measurement LW-9022 Series-Natural Convection Chamber
Catalogues - Chinese Version-Educational Facilities
LW-9354 Heat Pipe Thermal Performance Measurement

| User Manual - English Version |


Water Tunnel
LW-9174 Water Tunnel User Manual
資料擷取軟體
LW-9237 資料擷取軟體 使用手冊


Catalogues - English Version-Thermal Solutions
Comprehensive Introduction for Industries Comprehensive Introduction for Industries AMCA 210 Wind Tunnel LW-9389 / LW-9614 Thermal Interface Material Tester LW-9022 Series Natural Convection Chamber LW-9561 10U Heat Load Dummy Server LW-9558 Heat Exchanger & Radiator Performance Tester
Catalogues - English Version-Flow Visualization
Comprehensive Introduction for Research and Education
Catalogues - English Version-Educational Facilities
LW-9341 Venturi Tube-Bernoulli’s Equation Apparatus LW-9357 Orifice & Nozzle’s Cd Measurement Apparatus LW-9344 Cooler Module’s RQ Performance Measurement LW-9345 Fan PQ Performance Apparatus LW-9354 Heat Pipe Thermal Performance Measurement
Catalogues - English Version-Wind Tunnel/h5> Comprehensive Introduction of Wind Tunnel Series
Catalogues - English Version-Impact Testers
Split Hopkinson Bar Testers (2012) LW-9397 Split Hopkinson Pressure Bar Tester LW-9398 Split Hopkinson Tension Bar Tester LW-9361 Split Hopkinson Torsion Bar Tester LW-9396 Penetration Tester

Presentation

Presentation - English Version AMCA 210-07 Wind Tunnel Introduction new TIM Conduction Presentation Thermal Flow Presentation Cooler Test Report Thermal Pad Test Report
Presentation - Chinese and English Version AMCA 210 Wind Tunnel Introduction and Application new

Movies Impact History

Academic publication

...

News

202309

1.202308 new hand-held probe 3D measuring instrument, accuracy ± 3 μm.
Applicable working range:
desktop parts ~ 4 (L) × 1.2 (W) m × 2 (H) large objects
The instrument can validate the quality and precision of parts in a large-scale, such as barrel tanks, cabinets to enhance its credibility. ...

▼ The diameter and contour of large nozzles used in the air measuring instrument are measured accurately and confirmed to be in compliance with the standard to ensure the accuracy of the flow rate. ...

2.Newly established LIBS Elemental Analyzer
Long Win owns SEM, EDS and XRF elemental analyzers, and newly purchased LIBS elemental analyzer in Sep. 2023, which can do elemental analysis of solids, liquids and gases directly under atmospheric conditions, with a sampling diameter of <100 μm under a microscope, a sampling depth of 5 μm from the surface, which can move HPC's liquid-cooled and immersion-cooling material compatibility research forward. ...

2018~202305


2017

Smartphone Tests with IR imaging

Temperature: Ambient+5 °C ~ 70 °C Motor-driven platform to adjust orientations of smartphone 360°
Fixtures for IR imaging camera

LW-7600 Closed-Loop Wind Tunnel

Test section： 0.6 (H) x 0.8 (W) x 1.2 (L) m Velocity range：0.5~10 m/s

LW-9670B Liquid Cooling Tester

Total heating capacity：>7 kW
Total cooling capacity：>6 kW
Temperature range：20~60 °C

LW-9022RT Natural Convection Chamber - Room Temperature Model

Provided to many prestigious ICT companies in the US for product validation tests at room temperature to high temperature.
9022RT temperature range: 20-70°C
More than 700 sets of 9022 chambers serve their duties in leading edge ICT corporations,
and continuously show their reliability and good quality.

PIV Experiment for Cavity in Water Tunnel




Four Workstations are ready for simulation and CFD works in Long Win


Workstation #1
Intel Xeon 20 Cores, 40 Threads CPU
128 GB ECC RDIMM Memory
Quadro Graphics
Tesla GPGPU Unit
SSD Cache

Workstation #2
Intel Xeon 16 Cores, 32 Threads CPU
128 GB ECC RDIMM Memory
Quadro Graphics
SSD Cache

Workstation #3
Intel Xeon 12 Cores, 24 Threads CPU
144 GB ECC RDIMM Memory
Quadro Graphics
SSD Cache

Workstation #4
AMD Opteron 32 Cores, 32 Threads CPU
96 GB ECC RDIMM Memory
FirePro Graphics
SSD Cache

Real-time Fan PQ (Pressure & Flow Rate) Inspection Tester

1. Quick inspectio: 30 seconds/fan
2. Fitures for easy installation
3. The tester is based on AMCA 210 / ISO 5801 standards
4. Validated flow rate which can be traced to TAF accredited teet report.

Welcome to contact Long Win for more information.

Long Win's Events in Silicon Valley in March 2017

Long Win North America Lab in Silicon Valley opens for demonstration
 Including,：
1. Automated air flow bench for SRC tests of 1~4U Server/switch/PSU, fan PQ and heat sink's RQ
2. Thermal interface material TIM tester
3. Graphite thermal diffusivity tester
4. Heat sink thermal resistance tester
Welcome to come by and meet with us.

...

Participated in SEMI THERM 33
 Topics:
1. Data center thermal solutions - Multi-rack, single-rack, server's environmental tests
2. Natural convection chamber - Quality assurance and the roadmap to choose a model
3. Instruments and softwares in Long Win's headquarters - To provide strong technical support on mechanic researches We shared our studies and current industry trends with more than 80 attendees at ST33.
...


Stopped by Microsoft & Supermicro
 To share Long Win's
1. Test solutions of Natural convection chambers on consumer electronics
2. Test solutions of multi-rack, single-rack, and servers
...

NEnvironmental Test of Data Center - Walk-in Chamber

Long Win's walk-in chamber is designed for thermal environmental tests of racks in a data center.
 1. Airflow rate: 500~6000 CFM
2. Air temperature: 10~60 °C
3. Multiple types of air circulation: From high-raised tiles, lateral air dampers, and ceilings
4. Internal dimension: 3.6 x 3 x 2.45 m
5. Able to put 3 sets of 42U rack
6. Cold aisle and hot aisle simulation
7. Automated parameter control and data acquisition Walk-in chamber helps hardware integrators and hardware manufacturers to study rack's thermal performance and helps users of data centers to offer spec requirements based on actual experiments.

Stiffness test of heat sinks for Intel Purley platform

In 2016, Intel revealed Purley platform using LGA3647 socket.

In the design of LGA3647, the CPU and the socket have to be well attached through the press load exerted by the heat sink, which can make sure the perfect contact between the pins and board, or it may cause failure of signal transmission.

In this case, the heat sink handles the load from threads and springs, which means it has to be stiff enough to keep the same contact condition of CPU and socket.

Long Win's stiffness tester (LW-9649) was designed under the demand of stiffness tests of heat sinks, which suits 1U to 4U or tower heat sinks.

Three types of fixture are provided for short span point load, short span distributed load, and long span test. The fixtures are made of high strength alloy and can be installed easily and conveniently with high repeatability.

Under the friendly software interface, the force can be exerted by either way of constant load or constant speed; as repeating a test for three times, the variance of stiffness can be validated; the real-time graph of displacement vs. load is shown on the software window and in the meantime, the stiffness and R square value will be calculated.

To assure the reliability of tester, both load cell and displacement sensor are validated and can be traced back to TAF accredited laboratory. With various data comparison for different types of heat sinks, the test results of Long Win's stiffness appratus meet what is rendered by Intel USA.

The stiffness of heat sink is a necessary examination for Intel Purley platform, common for servers and data centers. Aside from thermal performance, it is also important to assure the long term reliability through figuring out the mechanical strength of heat sinks.

Natural Convection Chamber Represents Real Interior Environment

Why do we use natural convection chambers?
 Natural convection chambers are widely used in environmental tests for consumer electronics, computers, Netcom devices, mobile devices and LED products. They provide a controllable interior condition with a defined temperature.

What is the flow pattern in the interior condition?
 What is the temperature and flow pattern of interior environment?
How can we describe it in a scientific way?
We use LDA (laser Doppler anemometer) and CTA (constant temperature anemometer) to measure temperature, velocity and turbulence intensity inside NC chambers and interior environment.

Experimental settings
 Measure velocity and turbulence intensity within the effective working space in 9022 @ 40~70 °C. Measure velocity and turbulence intensity in the random interior environment. Plot 3-dimensioal figures of X-Y positions and velocity distribution.

Conclusion
 1. The temperature uniformity, velocity distribution and turbulence intensity are all repeatable.
2. LThe velocity and turbulence intensity between interior environment and 9022 natural convection chamber are similar and comparable.
Features of Long Win's natural convection chambers
 Life span: >20 years
Supplied: >1000 sets
Quality assurance – temperature uniformity test before dispatch
Models for ambient +5~70 degree C: 0 noise generated; 20~70 degree C: lower than 70 dB

2016





● Start up a demonstration lab and sales representative in California, USA. (2016.01)
● Attend SemiTherm 32 in California, USA. (2016.03)
● Build a facility, which based on CNS standard, to measure enthalpy change
─　with the max. capacity 5RT for a Taiwanese air conditioner supplier.
● Build a walk-in chamber to test 46U servers
─　with max. loading 48 kW and max. capacity 40 RT for a leading computer company.

2015

Wind tunnel with low velocity and high quality to UNIST, Korea

The cross area of the test section: 1 x 1 m
Wind velocity: 1~20 m/sec
Flow uniformity: 99%

Delivered a high-pressure controlled through remote proportional valves

Static pressure: ~3 kg/cm^2
Flow rate: ~40 CMM
Controlled through remote proportional valves

Delivered a low-velocity wind tunnel for the calibration of hot wire anemometers

LW-6804 wind tunnel to one of the best-known safety certification companies
Velocity: 0.1~20 m/sec
Resolution: 0.01 m/sec

Delivered an airflow bench with the largest airflow rate 8000 CFM to test evaporating cooling units (ECU) to one of the most prestigious suppliers in Tehran, Iran

Static pressure: ~150 mmAq
Flow rate: ~8000 CFM

LW-9022CC Natural Convection Chamber and Breeze Generator

- A test facility for vertical thermal module -
 LW-9022CC is based on the testing request of vertical thermal modules considering their performance of heat dissipation.
It can control both the ambient temperature and the velocity of lateral breeze either separately or simultaneously.

The internal dimension is 164(W) x 114(D) x 268(H) cm holding an 120-cm vertical thermal module;
it also includes a movable platform which can make the installation of the DUT much easier.

As the air is naturally convected in the chamber,
the ambient temperature can be modulated from 35 to 70°C
with the uniformity less than 1°C.

Both lateral sides of the chamber connect to a duct with an outlet 0.9(W) x 1.5(H) m,
form a horizontally closed loop and supply well-distributed wind velocity from 0.4 to 2 m/sec.

Long Win purchased the latest model of Laser Duppler Anemometry (LDA)

Long Win purchased the latest model of Laser Duppler Anemometry (LDA) with Diode Pumped Solid State (DPSS) Laser, which is going to be in use in Febuary 2016.

Non-intrusive measurement of velocity, velocity profile, flow quality and turbulence intensity in both free flows and internal flows.。
* Sampling rate: 6 million bursts per second
* Fluid: Both gas and liquid
* Velocity range: 0.05 ~ 220 m/sec
* Velocity uncertainty: 0.067%, coverage factor 2
* The maximum scanning dimension: 500 (W) x 500 (D) x 500 (H) mm; resolution: 0.05 mm

The best system to measure velocity in a confined space, such as a cabinet, a chassis, and a nozzle outlet, etc.
It will be in service and accepting test requests in March 2016.

Delivered 2 Cooling Distribution Units (CDU) to test the performance of cold plates

Capacity: 1~40 kW
Temperature: 12~60°C
Flow rate: 8~120 lpm

Delivered a split Hopkinson tension bar to UNIST, Korea

Effective volume of pressure tank: 5 liter
Pressure range: 1~30 kg/cm^2
Bar diameter: 24.5 mm
Bar material: SCM 440

Delivered a split Hopkinson pressure bar to UNIST, Korea

Effective volume of pressure tank: 5 liter
Pressure range: 1~40 kg/cm^2
Bar diameter: 24.5 mm
Bar material: SCM 440


2014

Delivered a wind tunnel with the highest velocity 100 m/sec to a national defense institute

The cross area of the test section: 0.3 x 0.3 m
Wind velocity: ~100 m/sec

2013

LW-9573 Filament Winding Machine

Filament Winding Machine can lay fibers or filaments on mandrels under a certain pattern regularly and uniformly. After curing and other further procedures, we can get parts with relatively light weight and high strength. Filament Winding Machine has been used to manufacture pressure vessel, tank and pipe. As technology improves, it is applied to more and more industrial and military fields, such as aircraft, aerospace, automobile, architecture, sports, energy and environment, etc.

Long Win’s LW-9573 Filament Winding Machine:
 1. All five axes are PC-based and closed-loop controlled by servo motors
2. Automatic setting of path patterns, winding angles and number of layers.
3. Max. length of winding parts: 2 m
4. Max. diameter of winding parts: 400 mm
5. Filament material: Fiberglass and carbon fiber
6. Both dry and wet winding are applicable
7. Max. 10 spools of fiber
8. Independent tension control device for each spool of fiber

Jianguo High School Visited Long Win's Lab & Factory

We demonstrated and instructed Long Win’s lab and factory according to the topic related to green and renewable energy.

1. Machining Factory, including CNC lathe, milling, laser cutting, laser welding, laser engraving and finished products
2. Material strength and impact testers
3. Wind turbine test, lift and drag force measurement, flow visualization in wind and water tunnels.

Factory – Laser Engraving – Machining


Wind Turbine Test in Wind Tunnel


Material Strength and Impact Testers – Split Hopkinson Pressure Bar Tester


Flow Visualization Experiment in Water Tunnel

LW-9539 Natural & Forced Convection Experiment

Purposes
1. Standard airflow rate generator and calculation
  1.1The apparatus is based on AMCA210-07 Standard,
   which is widely used in industries.
 1.2 Students can understand flow rate measurement by
   operating and calculating themselves.
2. Convection coefficient, h
 2.1 Describe convective condition by Newton’s law of
   cooling: Q = h × A × △T
 2.2 Study convection coefficient under different natural
    for orced convective conditions, airflow rate and
  models.
3. Get the concept of heat dissipation
 3.1By observation, record and calculation
 3.2 Helpful to know the overall issue of cooling and
  thermal management

Specifications
1. Standard flow rate generator: Accuracy is <3%
2. The flow rate generator is according to AMCA 210 Fig.15
  standards.
3. Flow rate range: 1.78 ~ 42.65 CFM.
4. Common chamber: 150 mm in inner diameter.
5. A blower and 4 sets of exchangeable nozzle structures
 produce accurate flow rate.
6. Differential pressure meter: Accuracy < ±0.25%;
 Range: 0 ~ 127 mmAq
7. Heating models
 7.1 Cylinder type, made of copper and stainless steel
 7.2 Plate type, made of copper and stainless steel
 7.3 6-point temperature measurement on each model
 7.4 Common temperature display and 90W DC power
  supply
 7.5 Natural and forced convection
 7.6 Vertical and horizontal installation
8. Including instruction manual
9. Overall dimension: 0.6 (D) × 1.2 (L) × 1.6 (H) m (Ref.)
10. Power source: AC220V, 5 Amp, 50/60 Hz, single phase

Cylinder and plate models for heating

Nozzles based on AMCA 210-07 Standard

LW-9614 In-Plane Thermal Diffusivity and Thermal Conductivity Measurement Apparatus

Introduction
LW-9614 is based on Angstrom Method and applicable for either isotropic or anisotropic sheet materials with high thermal conductivities, such as graphite, copper, and aluminum, etc.

The system provides a sinusoidal temperature wave, and it can automatically measure corresponding temperature differences and amplitudes at certain positions. Thermal diffusivity is calculated afterwards.

Specification
1. The range of thermal diffusivity: 0.05 ~ 10 cm2/s
2. Specimen dimension: Length: > 300 mm;
 Width: 20~30 mm;
 Thickness: 0.02~0.6 mm
3. Tension strength of specimens: Not smaller than 100
 gf/mm2
4. A natural convection chamber at ambient temperature
 with a digit temperature display
5. The amplitude and waveform of sinusoidal heating &
  cooling commands are controlled by PC-based software.
6. PC-based data acquisition and control
7. Calculate the correlation of amplitudes and phase
  differences resulting from temperature waveform, and
 get the value of thermal diffusivity.
8. Specific heat and density of the specimen can be
 manually key-in parameters, and the software will
 calculate a corresponding thermal conductivity.
 In LW-9614 system, measurement devices for density
 and specific heat
 are excluded.
9. Power source: AC 220V, 5A, single phase
10. Overall dimension: 90 (W) × 65 (D) × 164 (H) cm.

Technical Information
Download Catalogue(中)  Download Catalogue(英)

9614 Golden Sample

LW-9540 Heat Exchanger Experiment

Introduction
The main purpose of the experiment is to measure thermal performance of three typical heat exchangers under different flow directions and temperature conditions.
There are two flow directions - Parallel Flow and Counter Flow. Students can calculate Heat Capacity and temperature difference (LMTD), and then get total heat transfer coefficient (U).
If a larger total heat transfer coefficient appears under a constant condition, it means that the heat exchanger has better heat transfer performance.

Specifications
1. Three types of heat exchangers:
 1.1 Double pipe
 1.2 Plate
 1.3 Shell and tube
2. Water circulation and control
 2.1 A set of DC pump and flow meter 0 ~ 5 LPM
 2.2 The flow rate is adjusted by manual valves.
 2.3 Independent water tanks with constant temperature
  a. Hot water tank: 60 ~ 80°C
  b. Cold water tank: Ambient +5°C or the result of
    forced cooling
  c. Made of stainless material。
2.4 6 sets of T-Type sensors with digit displays to measure
 a. Inlet and outlet temperatures of hot water
 b. Inlet and outlet temperatures of cold water
 c. Temperature in the hot water tank
 d. Temperature in the hot water tank
3. With an operation platform and water-collecting
 structure
4. With a poster and instruction manual
5. Overall dimension: 0.6 (D) × 1.2 (L) × 1.4 (H) m (Ref.)
6. Power source: AC220V, 5A, single phase

Figures of Parallel and Counter Flow

Plate heat exchanger


Double-pipe heat exchanger


Shell-and-tube heat exchanger

2012

LW-9022L Natural Convection and Constant Temperature Chamber-Large Size

Introduction
A natural convection chambers is a suitable environment for thermal tests of cooler modules, servers, desktops, laptops, power supplies, etc. It provides a naturally convective condition with extremely low wind speed to simulate interior environment perfectly.

Features
1. Able to cooperate with LW-9117 Laser Sheet Generator
 as a light source LW-9205C Smoke Generator as a smoke
  source to do flow
 visualization experiment
2. LW-9390 IR Imaging Camera and IR sight window to
 visualize the temperature distribution inside the
 chamber

Specifications
1. Internal dimension: 250 (W) × 134 (D) × 180 (H) cm
2. Case material: Clear acrylic, 20 mm in thickness
3. Temperature range: Ambient +3℃~70℃
4. Temperature accuracy: ±0.5℃
5. Temperature uniformity: ±2℃
6. Height-adjust platform:
 6.1 Platform area: 50×100 cm
 6.2 Motor-driven
 6.3 Effective height difference: 23 cm
 6.4 Maximum loading: 50 kg
7. Power source: AC220V, 30A, 3-phase
8. With a temperature protection switch

Technical Information
Download Catalogue(中)  Download Catalogue(英)

9-point temperature measurement inside the chamber
The schematic drawing of 9-point orientation

Flow visualization of natural convection


Flow visualization of blower in the static state

Participate in Shanghai International Electronic Heat Dissipation Device　& Thermal Conductivity of Cooling Material Exhibition

Held in Everbright Convention & Exhibition Center, Shanghai International Electronic Heat Dissipation Device & Thermal Conductivity of Cooling Material Exhibition gathers suppliers in electronic cooling, fan & air ventilation, cooling module, heat dissipation and thermal interface material fields. It also provides a circumstance for visitors, related engineers and suppliers to share the latest trends and understand each other.

Long Win exhibits information about fan, TIM, cooler module, heat pipe, vapor chamber and LED thermal performance measurement. We also discuss with visitors face to face and popularize the idea of real experiments in the thermal management field.

Long Win will exhibit in TPCA Show 2012 in Booth I506

More than 100 industrial clients and research institutes have used Long Win’s Material Thermal Performance Testers to evaluate products’ heat dissipation capability, study and develop new products. We demonstrate the following apparatus at Booth I506 in TPCA Show 2012 on Oct. 24 ~ 26.

LW-9389 TIM Thermal Conductivity & Resistance Measurement Apparatus
The apparatus accords with ASTM D 5470-06 “Standard Test Method for Thermal Transmission Properties of Thermally Conductive Electrical Insulation Materials”. Applicable to the determination of thermal conductivity and thermal resistance of thermal grease, pad, insulation layer, MCPCB, ceramic board specimens under different pressure, temperature and power conditions.

LW-9614 Material Thermal Diffusivity Measurement Apparatus
According to Angstrom Method, the apparatus is applicable for the determination of in-plane thermal diffusivity for isotropic and anisotropic materials with high thermal conductivity, such as graphite heat spreader, sheet aluminum and copper, etc.

LW-9383 LED Junction Temperature & Thermal Resistance Measurement Apparatus
According to JESD 51-1 Standard, it is applicable to the measurement of junction temperature and thermal resistance for LED units and IC package’s diode.

LW-9558 Heat Exchanger & Radiator Performance Tester

Introduction
Heat exchangers are equipments for heat transfer by temperature difference between fluids and widely used for cooling or heating purposes in refrigeration, automobile, ventilation, steel-making and chemical industries which correlate with energy conversion. Based on different structure and purposes, heat exchangers may have various names. Among them, radiators are generally recognized as heat dissipation component and applied in automobile, ventilation and electronic industries for thermal management & thermal solutions.

As we improve heat transfer rate and efficiency of radiators, the energy conversion rate will be increased accordingly to save energy and lower costs. To study and develop advanced products, a complete platform for experiments is totally necessary. LW-9558 Heat Exchanger & Radiator Performance Tester can be installed on the rear side of AMCA 210-07 wind tunnel to get a standard airflow rate; There are devices for air cooling, air heating and humidifier on the downstream of wind tunnel to express all air conditions authentically. As per the working fluid in radiators, the heating device helps to simulate fluid conditions as the component works in the actual circumstances. All parameters can be PC-based controlled and acquired to improve research efficiency and capability.
Specification
1.Can be installed on the rear side of AMCA 210-07 wind tunnel to get a standard airflow rate 4~5000 CFM.
2.Cooling capability: Max. 10 RT; cooling water 10 °C
3.Air heating capability: Max. 30 kW
4.Working fluid heating: Max. 24 kW
5.PC-based control and DAQ system
Technical Information
Download Catalogue



LW-9561 10U Heat Load Dummy Server

Introduction
In cloud computing projects, heat dissipation performance of data center is one of the crucial issues. It affects energy saving, environment protection and device reliability significantly.

Servers are stacked in the rack and belong to the fundamental unit of data center. Since then, it is important to understand its cooling performance and optimizing it certainly helps the overall capability.

LW-9561 Heat Load Dummy Server has a height of 10U, and is convenient to be installed on a standard rack. It has embedded heating units with controllable heat output, PWM-modulated fan cooling, all digit displays and DAQ system for recording temperature, heating power, differential pressure and airflow rate.
Specification
  1. 10U Chassis with guide track, which can be installed in a standard rack.
  2. Install 800W heating units, which compose of heaters and fins.
    5 sets in total.
    Each set can be modified its heating power, which resolution is 100W.
  3. In the chassis, there are 4~6 fans in the inlet and their RPM are controlled by 1 set of PWM meter.
  4. Maximum flow rate: 1000 CFM, which is controlled by fan’s voltage; resolution: 50 CFM
  5. The flow rate of chassis can be calculated by System Resistance Curve (differential pressure-airflow rate).
  6. 12 points of temperature measurement in the chassis inlet; 24 points of temperature measurement in the chassis outlet; there are 6 sets of temperature measurement in total.
    7. Accuracy: ±0.5°C; reading: 0.1°C; with digit display and RS-485 interface.
  7. Power measurement: Voltage accuracy: ±1.0%; current accuracy: ±1.0%; power accuracy: ±1.0%;
    2 sets in total; with digit display and RS-485 interface
    Range: 0 ~300 V and 0~5 Amp; maximum power: 1500 VA.
  8. Pressure measurement: Accuracy of differential pressure transducer: ±0.25%, Setra brand, made in USA.
    With digit display and RS-485 interface. Range: 0 ~ 12.7 mmAq
  9. Over-heating protection (Referred temperature: 180°C) by power disconnection
    With over-current protection for digit meters.
  10. DC power supply for fan: 1 set of Switching Power Supply DC48V, 10A.
  11. PC-based data acquisition for heating power, differential pressure (airflow rate), inlet temperature, and outlet temperature without any PC hardware.
  12. Software: LW-9237; data format: Microsoft Office Excel
  13. Power source: AC220V, single phase, 30Amp, 50 / 60 Hz With more than 1 set of 10U, the power source will be AC220V, three phases, 50 / 60 Hz.


Technical Information
Download Catalogue



Release Low-Base LW-9120 AMCA Wind Tunnel

AMCA 210-07 Wind Tunnel is a series of important apparatus to evaluate PQ performance of fan & blower.

It is also applicable to be standard airflow rate generator to measure system resistance (SRC), thermal resistance and heat dissipation performance of servers, radiators, cooler modules, and cooling components, etc.

Since Long Win participated in the field of thermal solutions & thermal management, more than a hundred of customers have used LW-9015 series of AMCA 210-07 Wind Tunnel as an effective apparatus for product evaluation, research and development.

We understand that all test apparatus are long-term investment in a corporation to improve its competitive energy. Therefore, Long Win keeps our main idea of professional, integrated and technical-based service, and provides complete technical consultant and customized adjustment to meet every client’s requirement.

To consider height limitation of the installation site, we have a low-base 9120 AMCA wind tunnel. Its height is 198 cm; Separated control panel and main structure help to coordinate the partitions on site; Noise reduction devices are also installed, which also gets the operation experience closer to perfection.

National Formosa University purchased a set of LW-9357 Discharge Coefficient Experiment Apparatus

For a flowing system, we don’t usually appreciate energy consumption during mass-transfer process because it means the reduction of power efficiency. Besides, the design of pipeline correlates to the Coefficient of Discharge (Cd), which affects corresponding power efficiency directly.

As a result, if students understand the fundamental concepts about Coefficient of Discharge and how it influences mechanical world, they will be capable of applying it to create true energy-saving products.

LW-9357 Discharge Coefficient Experiment Apparatus is the platform which helps students to study this concept by conducting experiments themselves.
Features:
  • All airflow rate generator and nozzles are based on AMCA 210 Standard and provide accurate airflow rate as the experimental basis.
  • Easy-to-operate platform
  • The test results can be validated by PC-based software
  • Study abstract fluid concepts in the most fundamental and obvious way.
Specification & Introduction
Catalogue

Chung Yuan Christian University purchased a set of Venutri Tube Experiment Apparatus

Long Win’s “Venutri Tube Experiment Apparatus” includes:
* A set of standard airflow rate generator
* Venturi tubes with different inlet angle and shape.

As a controlled airflow move through a certain Venturi tube, students can observe pressure distribution inside the pipe, calculate the correlation of mass and energy transfer, and proof both Bernoulli and Continuous Equation.

We hope students can understand the fundamental principles which form fluid mechanics and implement it as their own knowledge basis by conducting experiments themselves. Specification & Introduction
Catalogue

National Cheng Kung University purchased a set of 9354 Heat Pipe Experiment Apparatus

Heat pipe is a super conductor of heat. Its working fluid is evaporated and condensed inside the sealed and vacuumed pipe, which is also the process for heat transfer from evaporated through adiabatic to condensed section. Compared to other heat conduction methods, heat pipe is able to transfer a great amount of heat by a small temperature difference.

In IT industry, heat pipe is one of major cooling components for thermal management / thermal solutions, which output value may reach NT 10 billion dollars. Thus, its importance in industrial application is quite clear.

Long Win’s “Heat Pipe Thermal Performance Apparatus” includes experiments of
* Heat transfer rate test
* Thermal resistance test under different attitudes
* Maximum heat transfer performance test

We would like to provide a modern and easy-to-operate experimental platform and let students study the fundamental concept of heat transfer. Furthermore, we hope it canmotivate them to know, to interest and to keep studying in this field. Specification & Introduction
Catalogue

LW-5294 Cold Plate Performance Tester - Cooling Distribution Unit (CDU)

Features This apparatus is applicable for thermal performance test of liquid-cooling heat exchanger and cold plate. It can control flow rate and inlet temperature of cold water automatically to varify specimens' performance under certain experimental conditions. All tests are PC-based control with real-time display, record and DAQ.。

Specifications
  1. pecimen: liquid-cooling heat exchangers, racks, servers & cold plates
  2. Specimen power: 1~40 kW
  3. Flow rate range: 8~120 lpm
  4. Inlet flow temperature: 20~70℃
  5. Pressure drop: smaller than 1.5 bar
  6. Max. inlet pressure: 5 bar
  7. Safety items: pressure, water level, temperature and electric current
  8. Control system:
    (1) LCD touch monitor for flow rate, pressure and temperature display
    (2) Inverter-type flow rate & temperature control
    (3) Automatic water supply
    (4) PC-based DAQ and calculation system
  9. Overall dimension: 130(W)x 100(D) x 205(H) cm

National Tsing Hua University purchased a set of LW-9513 Water Tunnel

National Tsing Hua University, NTHU plays an important role on promoting popular science education.

To understand the motion of fluid, such as air and water, visualization is the most direct and fundamental way.
The main purpose of LW-9513 Water Tunnel is flow visualization in water.

To cooperate with airfoil, plate, various kinds of cylinder, cavity and fence, students can visualize the flow pattern, understand qualitative properties, and get interests from this experiment.
The whole system is easy to operate and applicable to demonstration and actual practice.
LW-9513 Water Tunnel Brief Specification

SEMICON Singapore 2012 Exhibition

SEMICON Singapore is one of the most important expositions for semiconductor industry in Southeast Asia. This year, it was held in Marina Bay Sands Convention Center during April 24 to 26, 2012.

Long Win demonstrated instruments for thermal performance measurement of
1. In-plane thermal conductivity & diffusivity of materials
2. Junction temperature & thermal resistance of LED & IC package, which is based on JESD 51-1 Standard.

Through demonstration and discussion on site, visitors may know more about Long Win, fundamental measurement of heat transfer and its significance.

Join SEM XII International Congress & Exposition on Experimental and Applied Mechanics

Long Win is as an exhibitor SEM XII International Congress & Exposition from June 11 to 13, 2012

Demonstrate impact history & features of a series of Split Hopkinson Bar testers: pressure, tension and torsion along with penetration tester.
Also show the overall catalogue of the capability in manufacturing mechanic related instruments.

>>>>Download the full ad in the final programs

Update


Data Center

Join Electronics Thermal Week 2012 held in San Jose, CA, USA

Long Win is as an exhibitor in SEMI-THERM 28 and The Heat Is On of MEPTEC from Mar. 19 to Mar. 21, 2012
>> 下載完整廣告內容

2011

Donate a set of Wind Scale Experience Apparatus to Natioal Taiwan Science Education Centre

Long Win has been devoted to rearching mechanics-related apparatus to provide useful tools for industries and research institutes. Besides, we also have strong commitments on spreading basic science education. The exhibition - Typhoon is Coming has been held at National Taiwan Science Education Centre from Dec. 24, 2011 to Mar. 11, 2012. Long Win designed and manufactured a set of LW-9580 Wind Scale Experience Apparatus and donated it to NTSEC for both the special exhibition and future demonstration.

The apparatus has a speed scale of 1~35 m/sec to simulate Beaufort Wind Scale. In the test section, there are man-shaped model, flag model, and manual drag model to experience each wind scale condition. The LCD screen can show related physical parameters, including real-time wind speed, corresponding Beaufort scale, and the force exerted on the man-shaped model.

Join 10IHPS Exhibition

10th IHPS (International Heat Pipe Symposium) was held on Nov. 6 to Nov. 9, 2011 in Fullon Hotel, Fishermen Wharf. Long Win also joined its exhibition to demonstrate our lastest research apparatus for heat pipes and vapor chambers. We also had wide discussions with many professional researcher on various topics.

Long Win was visited by mechanical camps of NTHU and NCU.

Long Win has been devoted to rearching mechanics-related apparatus to provide useful tools for industries and research institutes. Besides, we also have strong commitments on spreading basic science education by utilizing what Long Win has in this stage. Further, we hope it can motivate some young people with passion on science and make knowledge be real achievement.

In this July, both mechanical camps held by NTHU and NCU were visited Long Win as one part of their schedule. With the topic of Mechanics and life, we introduced the latest technologies all over the world and what Long Win actually did. Students also visited our lab and factory to see demonstrations, such as flow visualization experiment, drag and lift force from NACA airfoil model, meterial tensile tests, and how a mechanical factory works. Hope any small introduction could become young people's motivation and parts of their memory.

Join Electronics Thermal Week 2011 held in San Jose, CA, USA

Long Win is as an exhibitor in SEMI-THERM 27 and The Heat Is On of MEPTEC from Mar. 20 to Mar. 24, 2011

>> Download the full ad in the proceedings

Stie Map


A.Information, Communication Technology (ICT) Lab B.Semiconductor Lab C.Fluid Mechanics Lab D.Material Analysis Lab E.Bio-Medical Lab F.Bio-Medical Lab G.Structural and Measurement Lab H.Calibration and Test Laboratory I.6 work stations


HPC Thermal Solution of HPC Data Center Download
Long Win LW PositionV1.3 CH Long Win LW Public Welfare Forum V1.3 CH Long Win Thermal Solution of HPC Data Center Long Win LW Position V1.5 ENG Long Win LW Forum V1.4 ENG Long Win LW Forum V1.4 ENG

●Fan Performance
➤AMCA 210 Wind Tunnel
➤LW-9014 Automatic Air Flow Rate and Pressure Measurement Apparatus
➤LW-9081 Automatic Air Flow Rate and Pressure Measurement Apparatus
➤LW-9015 Automatic Air Flow Rate and Pressure Measurement Apparatus
➤LW-9185 Automatic Air Flow Rate and Pressure Measurement Apparatus
➤LW-9120 Automatic Air Flow Rate and Pressure Measurement Apparatus
➤LW-9293 Automatic Air Flow Rate and Pressure Measurement Apparatus
➤LW-9545 8000 Pa High-Pressure Automatic Air Flow Rate and Pressure Measurement Apparatus
➤LW-9347 Fan PQ Performance Measurement Apparatus
➤LW-9348 Fan PQ Performance Measurement Apparatus
➤LW-9266 Fan PQ Performance Measurement Apparatus
➤LW-200T Rear Additional Thermal Wind Tunnel for LW-9015 AMCA 210 Wind Tunnel
➤LW-9099 Fan Noise Measurement Apparatus
➤LW-3122 Thermal Test Vehicle (Platform) TTP

●Thermal Interface Material
➤LW-9389 TIM Thermal Resistance and Conductivity Measurement Apparatus
➤LW-9286 Thermal Diffusivity and Conductivity Measurement Apparatus for High K Value
➤LW-9614 In-Plane Thermal Diffusivity and Thermal Conductivity Measurement Apparatus

●Cooler Modules
➤LW-9091 Cooloer Module Thermal Resistance Measurement
➤LW-9172 Cooler Module Thermal Resistance Transient Inspection Apparatus
➤LW-9052 Press Load Apparatus
➤LW-9053 Heat Flux model (Dummy Heater)
➤LW-9070 Clip Force Measurement for CPU Cooler
➤LW-9070S Clip Force Measurement for CPU Cooler
➤LW-9221 Multi-Axial Press Load Apparatus
➤LW-9222 Heat Flux model (Dummy Heater) for NB

●Heat Pipes and Vapor Chambers
➤LW-9334A Heat Pipe Thermal Resistance and Qmax Measurement
➤LW-9280 Heat Pipe Thermal Resistance and Qmax On-line Inspector
➤LW-9510 Vapor Chamber Thermal Performance Measurement Apparatus

●IC Package
➤LW-9150 Rjc Measurement of IC Package
➤LW-9150L IC chip packaging Rjc liquid-cooled measuring device

●Natural Convection
➤LW-9022S Natural Convection and Constant Temperature Chamber-Small Size Control
➤LW-9022 Natural Convection and Constant Temperature Chamber-Standard Size
➤LW-9022 Natural Convection and Constant Temperature Chamber-High-Base
➤LW-9022M Natural Convection and Constant Temperature Chamber-Medium Size
➤LW-9022L Natural Convection and Constant Temperature Chamber-Large Size
➤LW-9022P Natural Convection and Constant Temperature Chamber-Programmable Temp. Control
➤LW-9022H Natural Convection and Constant Temperature Chamber-High Temperature
➤LW-9022TH Natural Convection and Constant Temperature and RH Chamber
➤LW-9022LC Natural convection constant temperature chamber

●LED Thermal Performance
➤LW-9022S Natural Convection and Constant Temperature Chamber-Small Size Control
➤LW-9383 LED Tj Thermal Resistance Measurement

●Thermal Wind Tunnel
➤LW-2234 Natural & Forced Convection Thermal Wind Tunnel
➤LW-2245 Combustion Wind Tunnel
➤LW-2499 Thermal Wind Tunnel
➤LW-2616 Vertical / Horizontal Thermal Wind Tunnel
➤LW-6200T Thermal Wind Tunnel
➤LW-9016 Thermal Wind Tunnel
➤LW-9118 Vertical Thermal Wind Tunnel
➤LW-9300T Thermal Wind Tunnel
➤LW-9300TIC Thermal Wind Tunnel
➤LW-4428 Closed-Loop Vertical Thermal Wind Tunnel
➤LW-9642 temperature wind tunnel
➤LW-8396 temperature wind tunnel

●Related Apparatus
➤LW-9148 Water Pump Performance Measurement
➤LW-9059 Shock Test Apparatus

●Data Center, Rack & Server
➤LW-5294 Cold Plate Performance Tester - Cooling Distribution Unit (CDU)
➤LW-9561 10U Heat Load Dummy Server
➤LW-9558 Heat Exchanger & Radiator Performance Tester

●AMCA 210 Wind Tunnel
➤AMCA 210 Wind Tunnel Series Intro
➤LW-9014 Automatic Air Flow Rate and Pressure Measurement Apparatus
➤LW-9081 Automatic Air Flow Rate and Pressure Measurement Apparatus
➤LW-9015 Automatic Air Flow Rate and Pressure Measurement Apparatus
➤LW-9185 Automatic Air Flow Rate and Pressure Measurement Apparatus
➤LW-9120 Automatic Air Flow Rate and Pressure Measurement Apparatus
➤LW-9293 Automatic Air Flow Rate and Pressure Measurement Apparatus
➤LW-9545 8000 Pa High-Pressure Automatic Air Flow Rate and Pressure Measurement Apparatus
➤LW-9347 Fan PQ Performance Measurement Apparatus
➤LW-9348 Fan PQ Performance Measurement Apparatus
➤LW-9266 Fan PQ Performance Measurement Apparatus
➤LW-200T Rear Additional Thermal Wind Tunnel for LW-9015 AMCA 210 Wind Tunnel
➤LW-9099 Fan Noise Measurement Apparatus
➤LW-3122 Thermal Test Vehicle (Platform) TTP

●Wind Tunnel
➤LW-2116 Wind Tunnel
➤LW-2240 Extremely Low Speed Wind Tunnel
➤LW-3660 Wind Tunnel
➤LW-3840 Wind Tunnel for Wind Turbine Testing
➤LW-3890 Wind Tunnel
➤LW-4544 Wind Tunnel for Anemometer Calibration
➤LW-6200 Wind Tunnel
➤LW-8565 Closed-loop Horizontal Subsonic Wind Tunnel
➤LW-9069 Wind Tunnel for Hot Wire Anemometer Calibration
➤LW-9133 3D Flow Visualization Wind Tunnel
➤LW-9300 Wind Tunnel
➤LW-9300R Wind Tunnel
➤LW-9544 Wind Tunnel

●Water Tunnel
➤LW-2114 High Speed Water Tunnel
➤LW-2330 Water Tunnel
➤LW-3457 Water Tunnel
➤LW-9002 Force Measurement & Flow Visualization Water Tunnel
➤LW-9065 Water Tunnel
➤LW-9093 Flow Visualization Water Tunnel
➤LW-9174 Water Tunnel
➤LW-9513 Water Tunnel
➤LW-9513B Water Tunnel
➤LW-7962 Water Tunnel
➤LW-7962HS Water Tunnel
➤LW-3457B Water Tunnel
➤LW-9717G glycerin Channel
➤ LW-9717W Water Tunnel

●Water Tank
➤LW-9020 Flow Visualization Water Tank
➤LW-9134 Flow Visualization Water Tank

●Light Source and Particles for Flow Visualization
➤LW-9117 Laser Sheet Generator
➤LW-9205C Smoke Chamber and Generator
➤Smoke Sheet Generator
➤Hydrogen Bubble Generator
➤LW-9009 Multi-Point & Color Dye Generator
➤Flow Visualization Particle

●Flow Visualization Models
➤Boundary Laryer Model
➤Cavitation Experiment
➤Delta Wing Model
➤Rotating Cylinder Models
➤Reynolds Number Models
➤Flow Visualization Models

●Pressure Distribution Measurement
➤Pressure Distribution Models
➤LW-8007 20-Column Liquid Manometer
➤10-Column Liquid Manometer for Water Tunnel

●Force Measurement
➤LW-9028 2-Component Balance Measurement
➤LW-9028N 2-Component Balance Measurement
➤LW-9516 3-Component Balance Measurement
➤Equal-Area Drag Force Model
➤Lift and Drag Models
➤LW-9356 NACA Airfoil Models

●Wind Turbine Testing
➤LW-9405 Torque Measurement Unit
➤LW-9403 RPM Measurement Unit
➤Variable Loading Unit
➤Wind Turbine Blade Stand
➤Wind Turbine Blade Sets

➤LW-9397 Split Hopkinson Pressure Bar Test Apparatus
➤LW-9398 Split Hopkinson Tension Bar Test Apparatus
➤LW-9361 Split Hopkinson Torsion Bar Test Apparatus
➤LW-9396 Penetration Tester


➤LW-9341 Venturi Tube-Bernoulli's Equation Apparatus
➤LW-9342 Pipe Line Pressure Loss Apparatus
➤LW-9346 Air Flow Rate Measurement - Orifice, Venturi Tubes , Nozzle and Rotameter
➤ LW-9357 Orifice and Nozzle's Cd Measurement Apparatus
➤ LW-9344 Cooler Module's Forced Convection Heat Transfer Apparatus
➤LW-9345 Fan PQ Performance Apparatus
➤LW-9354 Heat Pipe Thermal Performance Measurement Apparatus
➤LW-9539 Natural & Forced Convection Experiment
➤LW-9540 Heat Exchanger Experiment


●Temperature
➤ LW-9046 Temperature Measurement Device
➤ LW-9049 Temperature Calibrator
➤ LW-9224 Thermocouple Welder Device

●Pressure
➤LW-9000P Differential Pressure Measurement and Data Acquisition Unit
➤LW-8007 20-Column Liquid Manometer
➤10-Column Liquid Manometer for Water Tunnel
➤Pitot Tubes

●Wind Speed
➤LW-9032 Hot Wire Anemometer
➤LW-9037 Hot Wire Anemometer Calibrator

●PWM Signal Generator and Control
➤ LW-9215S PWM Signal Generator
➤ LW-9215P-PWM DC Fan's Electric Performance Test Apparatus

Contact Us

Headquarters in Taiwan


Long Win Science and Technology Corporation

Since 1985 with the trademark of LonGwin
No. 7, Shih 2nd Road, Youth Ind. Park, Yangmei, Taoyuan, 32657 Taiwan.
TEL: +886 3 464 3221
FAX: +886 3 496 1307
Email：  longwin@longwin.com

U.S.A. Representative

Since 1985 with the trademark of LonGwin
Frank Wang
frankwang@longwin.com
TEL: +1-925-765-8110
FAX: +1-925-705-4386

Technical Service in English

Map

Location:

No. 7, Shi 2nd Rd., Yangmei Dist., Taoyuan City 32657 , Taiwan (R.O.C.)

Call:

TEL: +886 3 464 3221
FAX: +886 3 496 1307






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