Tag Archives: closed loop wind tunnels

Benchtop Wind Tunnel Can Produce High Flows of Warm Air for Thermal Testing

The CLWT-115 research quality, closed loop wind tunnel from ATS can generate air flows from ambient to 85°C and a rate of up to 50 m/s (10,000 ft/min) for thermally characterizing PCBs and individual components.

The new CLWT-115 wind tunnel from Advanced Thermal Solutions facilitates thermal management studies of electronic components by providing controllable air flows at controllable air temperatures. These features allow faster evaluation of elevated temperatures on component and PCB response and reliability. The CLWT-115 wind tunnel offers a convenient, accurate system for thermally characterizing PCBs and individual components at controlled temperatures from ambient to 85°C.

The new wind tunnel creates consistent, low turbulence air flows of up to 5 m/s (1000 ft/min). It can be customized to generate flows up to 50 m/s (10,000 ft/min) using optionally available orifice plates. The instrument has a clear Lexan test section lets the user view the test specimen and allows for flow visualization.

Because of its closed loop design, the CLWT-115 recirculates internal air. The system heater can quickly warm the air to a specific temperature. This feature is ideal for testing boards and components in hot air, which is a requirement in some NEBS standards. The CLWT-115 wind tunnel can also be used for testing heat sink performance and for calibrating air and temperature sensors.

The CLWT-115 features a test section that can be open from the top door or sides for mounting and repositioning of boards, components and sensors. Rail guides provide an easy mechanism to install test specimens of different sizes (e.g., PCB, heat sink).
Instrument ports (6) are provided in the side walls of the test section for placing temperature and velocity sensors including thermocouples and hotwire
anemometers.

To learn more about the CLWT-115 benchtop wind tunnel, visit Qats.CLWT-115

New Benchtop Wind Tunnel Tests Boards and Components at Elevated Temperatures

The CLWT-115 research quality, closed loop wind tunnel from ATS provides a convenient, accurate system for thermally characterizing PCBs and individual components at controlled temperatures from ambient to 85°C.

Advanced Thermal Solutions, ATS has introduced the CLWT-115 wind tunnel which allows engineers to evaluate the effects of elevated temperatures on component and PCB response and reliability. The new research quality, closed loop wind tunnel provides a convenient, accurate system for thermally characterizing PCBs and individual components at controlled temperatures from ambient to 85°C.

The CLWT-115 wind tunnel produces high quality, low turbulence air flows of up to 5 m/s (1000 ft/min). When customized, it can generate flows up to 50 m/s (10,000 ft/min) using optionally available orifice plates. The clear Lexan test section lets the user view the test specimen and allows for flow visualization.

Unlike open loop wind tunnels, the CLWT-115 recirculates internal air. This allows the system heater to quickly warm the air to a specific temperature. The testing of boards and components in hot air is a requirement in some NEBS and other standards. The precise controls and temperature range of the CLWT-115 wind tunnel allows its use for testing heat sink performance and for calibrating air and temperature sensors.

The complete wind tunnel fits on most lab benches and is powered from standard AC outlets. It has a smaller footprint than traditional, closed loop wind tunnels or environmental test chambers.

The wind tunnel’s test section can be accessed from the top door or sides for mounting and repositioning of boards, components and sensors. Internal rail guides provide an easy mechanism to install test specimens of different sizes (e.g., PCB, heat sink).

Instrument ports (6) are provided in the side walls of the test section for placing temperature and velocity sensors such as thermocouples, Pitot tubes and hotwire anemometers.

For more information about the CLWT-115 benchtop wind tunnel, visit Qats.com or call 1-781-949-2522.