ATS has continued to expand in the COTS industry because of its expertise in resolving thermal challenges through its consulting services, cooling solutions, and thermal test instruments. Most recently, the CWT-107 open loop wind tunnel was sold to the United States Navy for use in their Research Development Labs.
CWT-107 Open Loop Wind Tunnel
The CWT-107 is a research quality wind tunnel designed for multiple PCB and component level testing. It is used in air flow characterization and flow visualization, thermal resistance measurements and generation of P-Q curves. The large test section (24″ x 2″ x 7″) is designed to accommodate multiple PCBs, as seen in a typical ATCA chassis. The wind tunnel can also be used to characterize different heat sink sizes for natural and forced convection cooling. Additionally, multiple heat sinks can be tested side by side to determine their thermal performance in the same environment.
The following video is a brief demonstration and walk through of the CWT-107 Open Loop Wind Tunnel:
To learn more about the CWT-107 and how ATS products can be utilized in COTS applications, please visit www.qats.com.
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In our final post of the 3 part blog series, we discuss lab equipment that easily allow for optimal flow visualization when testing PCBs.
Our first two posts show the benefits of air and liquid flow visualization in PCB testing. In order to successfully evaluate the thermal performance of a component and PCB, the proper test environment must exist:
A test system that:
Accommodates both single components and multiple PCBs
Reflects the actual system
Can simulate elevated temperature conditions with a controlled flow, if required
ATS offers a family of wind tunnels that offer an automated facility for thermal characterization, testing, and optimization of PCBs, components, and heat sinks.
All ATS wind tunnels have a large Plexiglas test section for optimal flow visualization. Wind tunnel controllers, such as the WTC-100 and CLWTC-1000 automate testing while accessories such as the HP-97 simulate heat dissipation. Most wind tunnels are easily portable and can be operated vertically or horizontally, maximizing compact lab space.
Rework of PCB layout using flow visualization techniques
Flow visualization is an easy and effective way to understand the flow condition of a component. It allows the PCB layout to be changed at the design stage, reducing the development costs of reworking the board layout after the design has be solidified. It minimizes thermal component costs, increases system reliability, and speeds up a product’s time to market.
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