What is the principle of infrared thermometer?

What is the principle of infrared thermometer? What should we pay attention to when using it?

Infrared temperature measurement technology plays an important role in the production process, product quality control and monitoring, equipment online fault diagnosis and safety protection and energy saving. Compared with the contact temperature measurement method, infrared temperature measurement has the advantages of fast response time, non-contact, safe use and long service life. So, what is the principle of infrared thermometer? What should we pay attention to when using it?

Non-contact infrared thermometer is composed of optical system, photodetector, signal amplifier, signal processing, display output and so on. The optical system gathers the infrared energy radiated by the target object, focuses it on the photodetector, and converts it into the corresponding electrical signal, and then converts it into the linear temperature signal value of the measured target after the circuit calculation and processing circuit, so as to realize further signal processing and control.