Sensor Applications
Temperature Sensing
Single element thermopile sensors and thermopile arrays with low spatial resolution are well suited for non-contact remote temperature measurements. The most common applications are human body temperature measurements with in-ear or forehead thermometers and temperature sensors for industrial process control. Heimann Sensor thermopile sensors are fast due to low thermal time constants that allows quick measurements. In addition, thermopiles can be operated at DC, and do not need to be periodically refreshed with an external shutter mechanism. This allows true continuous temperature observations.
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Non-contact body temperature measurements and fever screening for human beings and pets.
Thermal Imaging
To generate a thermal image, many individual thermopile pixels are arranged in a two dimensional array. Starting with low resolution of 8x8 and 16x16 pixels, we also provide thermopile arrays with 32x32, 80x64 and 120x84 pixels. This allows our customers to generate thermal images with different spatial resolution for different applications. One of the main fields of interest of our customers include person detection in automation and security applications. Another area is hot spot detection, which includes a wide field of applications from engineering to fire suppression to industrial safety up to consumer goods.
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Gas Detection
Out thermopile sensors can be used to perform gas concentration measurements based Beers law and the nondispersive infrared (NDIR) gas detection principle. Simply stated, measuring the absorption of infrared radiation at a specific wavelength allows the determination of the concentration of a specific gas. All that is required is an infrared light source and one thermopile, but two single or one dual thermopile sensor are often used to improve accuracy by eliminating drift over time of the infrared source emission. Due to their small size and low thermal mass, NDIR gas detection with thermopile sensors can be very fast and require only little volume.
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