Two-color fixed thermometer operating principle guide
Guidance on the operating principle of the two-color fixed thermometer: The two-color infrared thermometer is a type of infrared thermometer. It can also be called a fiber-optic two-color infrared thermometer, which measures the infrared radiation brightness emitted by an object in two different spectral ranges and infers the temperature of the object from the ratio of the two radiation brightness, which is called a two-color thermometer. In fact, the two-color thermometer does not have the meaning of brightness and color. Compared with the brightness thermometer (optical pyrometer), the two are different in principle. The meaning of "color" here should be infrared wavelength or spectrum, that is, "double infrared spectrum thermometer"
The two-color online thermometer is an effective tool for detecting and diagnosing electronic equipment failures. There are many varieties of fixed infrared thermometers, and different series play an important role in their respective industries. The main performance indicators of fixed infrared thermometers include spectral response, response time, repeatability and emissivity. Fixed infrared thermometers are used in the glass and ceramic industries, papermaking and packaging industries, various kiln temperature measurement applications, and the chemical industry to measure the temperature of instruments and meters to detect the operating status of the instruments and ensure the normal operation of the instrument. run.
Guidance on the operating principle of the two-color fixed thermometer:
The two-color infrared thermometer consists of an optical system, a color separation film or filter, an infrared detector, a signal processor and a display output part. A two-color thermometer measures the radiance emitted by an object in two different spectral ranges, and converts the ratio of the two radiances into the temperature of the object. Therefore, in principle, it is fundamentally different from a single-color thermometer. Two-color thermometers The key to the instrument lies in the selection of the two bands. The selection principle is: the signal ratio of the two bands is sensitive to changes in temperature. When the temperature changes slightly, the ratio of the signals in the two bands is still large, which will give the instrument a greater temperature resolution.
