The principle of infrared thermometer:
As long as the temperature of any object is higher than zero (-273°C), it will emit thermal radiation to the outside. The temperature of the object is different, the energy it radiates is also different, and the wavelength of the radiation wave is also different, but it always contains infrared radiation. In addition, for objects below 1,000 degrees Celsius, the strongest electromagnetic waves in their thermal radiation are infrared waves, so the measurement of the object's own infrared radiation can accurately determine its surface temperature, which is the objective basis of infrared thermometer temperature measurement. Base.
The working principle of infrared thermometer:
The non-contact infrared thermometer consists of an optical system, a photodetector, a signal amplifier, signal processing, and display output. The optical system is to gather the infrared energy radiated by the target object, focus on the photodetector, and convert it into a corresponding electrical signal, and then convert it into a linear temperature signal value of the measured target after passing through the circuit operation and processing circuit. In order to achieve further signal processing and control.
What are the characteristics of infrared thermometers?
1. Non-contact temperature measurement has no effect on objects
2. Detect the surface temperature of the object
3. Fast response speed, can measure moving objects and transient temperature
4. Wide measurement range
5. High measurement accuracy and small resolution
6. It can measure the temperature of a small area
7. Can measure point, line and surface temperature at the same time
8. It can measure temperature and relative temperature
What are the classifications of infrared thermometers?
1, Infrared spot thermometer: A, portable B, fixed
2. Infrared Scanner
3. Infrared thermal imager
