What is the effect of emissivity on the accuracy of infrared temperature measurement?
We know that when any object is above absolute zero (-273.15°C), infrared energy, that is, infrared rays, will be emitted from the surface of the object. The higher the temperature, the stronger the infrared energy emitted! Infrared thermometers and infrared thermal imaging cameras measure the temperature of the surface of objects based on this characteristic. Since we know that infrared thermometers and infrared thermal imaging cameras measure the temperature of the surface of objects, it will inevitably be affected by the smoothness of the surface of the object. The experiment proves that the closer the surface of the object is to the mirror surface (the stronger the reflection), the stronger the attenuation of the infrared energy emitted by the surface, so we need to compensate the attenuation of the infrared energy on the surface of different objects, that is Set a compensation coefficient, this compensation coefficient is emissivity!
