What is the General Composition of an Infrared Sensor System?

Infrared sensor system includes optical system, detection element and conversion circuit optical system. The working principle of the infrared thermopile sensor system is not complicated. The entities of each part of a typical sensor system are:

1. Target to be tested

The infrared system can be set according to the infrared radiation characteristics of the target to be measured.

2. Atmospheric attenuation

When the infrared radiation of the measuring target passes through the earth's atmosphere, the infrared radiation emitted by the infrared source will attenuate due to the scattering and absorption of gas molecules, various gases and various sol particles.

3. Optical receiver

It receives part of the infrared radiation of the target and transmits it to the infrared sensor, which is equivalent to radar antenna, commonly used as objective lens.

4. Radiation modulator

The radiant light from the target under test is modulated and changed to provide target azimuth information, and can filter out large-area interference signals.

5. Infrared detector

This is the core of the infrared sensor system. It is a sensor that uses the physical effects presented by the interaction between infrared radiation and matter to detect infrared radiation, and in most cases, it is the electrical effects presented by this interaction.

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