Liquid Crystal Thermography System Reveals PCB and Component Temperatures

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A new liquid crystal thermographic analysis system provides optical temperature measurements of active PCBs and components. The ethermVIEW system uses the color response of thermochromic liquid crystals (TLC) for non-invasive thermal studies. Developed by Advanced Thermal Solutions, the ethermVIEW system includes a high-performance, solid-state color camera for macroscopic inspection of boards and components coated with heat-sensitive liquid crystals.

The camera features a flicker-free white light source for clear viewing of dark surfaces and partially concealed features. It links to a PC by Firewire, the standard connection for high-definition video devices. For image processing and management, the system includes the proprietary thermSOFT software used in other ATS thermal analysis devices. A transformer is provided for international use.

Liquid crystals used with ethermVIEW reflect incident light at visible wavelengths based on the surface temperatures where they’re applied. The camera captures the reactive TLC colors to reveal hot spots and defects for more effective thermal management.

In contrast to infrared thermography systems, the ethermVIEW TLC method is not affected by ambient temperatures. It provides more precise temperature measurements—within +/- 0.1°C accuracy. The ethermVIEW system can also be purchased for less than one third the cost of a typical IR thermography system. Starting price for the ethermVIEW thermographic analysis system is $15,000 depending on configuration and volume of liquid crystals provided.

Advanced Thermal Solutions
Norwood, MA
(781) 769-2800