IR Sensing

Thermopiles, arrays and pyrodetectors for thermometry, gas sensing, safety controls, movement detection

Thermopiles and pyrodetectors offer two different approaches to detecting and measuring thermal energy. They work differently; a thermopile detector uses thermocouples to measure temperatures differences, whereas a pyrodetector uses the pyroelectric effect to recognize temperature variations by detecting changes in the infrared radiation received.

Excelitas offers an extensive range of pyrodetectors suitable for motion sensing and intrusion detection. Excelitas was the first to introduce a family of detectors offering a digital signal output – the DigiPyro® truly digital pyroelectric infrared detector family – and also offers “Smart” DigiPyro® models with total motion electronics integration. Their range also includes SMD pyroelectric detectors to facilitate high-volume, SMT-compatible production in key motion and presence detection applications such as energy-saving motion-activated automatic light switches.

Excelitas thermopile sensor modules for general temperature measurement and thermometry applications consist of a thermopile sensor mounted on a pcb with a connector, and include integrated temperature compensation and calibration. Also available are thermopile sensors with integrated processing, offering either digital or analog outputs. DigiPile products suit thermometry, pyrometry and non-contact temperature sensing. The analog devices sense the thermal radiation emitted by objects and convert this to an analog voltage.

The Excelitas CoolEye family of thermopile array modules offer thermopile arrays in various configurations on a pcb with microcontroller, EEPROM, ADC, communication interface and a 4-pin connector. The modules also contain integral optics. These arrays now extend to 32 pixels in line, and provide low resolution image sensing for presence detection, energy conservation, alarm applications and non-contact temperature measurement.

Selected Excelitas products are available on our webshop, with more coming soon. Contact us if you cannot find what you need.

Contact Us for More Information

« Back to Optoelectronics

« Back to Sensors