What are the main parts of a handheld infrared thermometer?
Temperature is a very important thermal parameter in the industrial production process, which directly affects the quality and performance of the product. Compared with traditional contact instruments, the non-contact handheld infrared thermometer mentioned in the title is easy to use, has fast response speed, high sensitivity and wide temperature measurement range, and can realize non-contact online continuous measurement. However, traditional contact temperature measurement instruments require heat exchange with the substance being measured, and it takes a period of time to reach thermal equilibrium, so there is a hysteresis phenomenon in temperature measurement.
The principle of handheld infrared thermometer
When an infrared thermometer measures the target temperature, it first measures the infrared radiation of the target temperature within its band range, and then the thermometer calculates the measured target temperature. The process is that its optical system gathers the target infrared radiation energy within its field of view. At this time, the infrared radiation energy is focused on the photodetector and converted into a corresponding electrical signal. This signal will pass through the signal amplifier and signal processing circuit, and finally according to the handheld infrared The algorithm inside the thermometer and the target emissivity are corrected and converted into the actual temperature value of the measured object.
The selection principle of infrared thermometer: first of all, the temperature measurement requirements must be clearly defined, such as temperature measurement range, accuracy, size of the measured object, measurement distance, surface emissivity of the measured target, working environment of the measured object and corresponding speed. Secondly, choose a non-contact thermometer that suits your requirements among many infrared thermometers. Finally, while meeting the above needs, choose the one with the best performance, function, and price. In addition, consider its ease of use, later maintenance, calibration performance, etc.
