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Surface Thermography Liquid Crystals from ATS
Liquid crystals change color with temperature.
Norwood, MA — Thermochromic liquid crystals available from Advanced Thermal Solutions can be sprayed on. The liquid crystals change color at different temperatures to reveal heat issues on chips and other electronic components. By applying these liquid crystals, engineers can visually find hotspots and temperature fields.

TLC-100 liquid crystals are designed for heat transfer studies and mapping heat fields on electronic components or boards. The crystals change color at a specified temperature starting at red, changing to green then blue. For electronics cooling applications, this provides the user accurate information about the location of hot spots on a device, their temperature and temperature gradient.

To map the temperature profile of a component or board, black ink is airbrushed on to the specimen. Then TLCs, with a temperature range depending on the application, are sprayed onto the measurement surface. Once the device is turned on, and the components are brought to activation temperature, the liquid crystals begin turning red, then into different colors, representing the temperature distribution of the component or board.

Thermochromic liquid crystals are available in a variety of temperature ranges from 12 to 120°C, each one has a particular bandwidth from 1 to 20°C. Hotspot locations can be confirmed and changing temperatures can be seen at various current output levels. The crystals can show thermal patterns, not just at the chip but on the surrounding hardware.

ATS thermal engineers can provide application and interpretation guidance for TLC-100 studies.

Contact: Advanced Thermal Solutions, 89-27 Access Rd., Norwood, MA 02062 781-769-2800 fax: 781-769-9979 Web:
http://www.qats.com

 
 
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