The advantages of the fiber optic infrared thermometer are
1. Due to the separation of the optical system and circuit system, the optical system of the thermometer can be installed in high-temperature environments (able to withstand up to 200 degrees Celsius in the field environment) and can work stably online for a long time when applied in industrial fields. Due to the complete lack of electricity in the optical system, the industrial site where it is installed is completely explosion-proof. The circuit part of the thermometer can be installed indoors or away from high-temperature sites, connected through optical fibers and optical paths, thus completely avoiding the interference of high temperatures on the instrument's temperature measurement.
2. Due to the fact that the infrared signal of the fiber optic infrared thermometer is transmitted to the sensor through a special material infrared fiber, when the optical path is focused on the fiber optic, only the spot size of the fiber optic cross-section can be transmitted to the sensor through the fiber optic. This avoids the impact of large areas of light directly focusing on the sensor and baking it, which can affect the stability and lifespan of the sensor. Moreover, the infrared fiber is made of special materials, which allows only the required infrared band to be selected through the fiber, further reducing the baking of the sensor by light. Therefore, compared to integrated infrared thermometers, light infrared thermometers have better stability and longer service life.
Principle of fiber optic infrared thermometer
Infrared radiation is the most widespread electromagnetic radiation that exists in nature. It is based on the irregular motion of molecules and atoms of any object in a conventional environment, constantly radiating thermal infrared energy. The more intense the motion of molecules and atoms, the greater the energy radiated, and vice versa, the smaller the energy radiated. Objects with temperatures above absolute zero will emit infrared radiation due to their molecular motion.
