The methods and steps of infrared thermometer measurement
Infrared thermometer, commonly known as point temperature gun, senses the surface temperature of an object through the principle of infrared transmission of digital signals, and is suitable for measuring high-temperature objects. In the power plant, it is convenient for operators to measure equipment temperature anytime and anywhere to check whether the equipment is working properly.
The infrared thermometer consists of an optical system, a photodetector, a signal amplifier, signal processing, display output, and other components. The optical system gathers the infrared radiation energy of the target within its field of view, and the size of the field of view is determined by the optical components and their positions of the thermometer. Infrared energy is focused on the photodetector and converted into corresponding electrical signals. The signal is converted into the temperature value of the tested target after being amplified and processed by the signal processing circuit, and corrected according to the algorithm of the instrument's internal treatment and the target emissivity.
Measurement method:
This thermometer is a portable thermometer with a relatively simple method of use. It uses the "SEL" and "SET" keys to set the emissivity, temperature units, and switch between maximum and minimum values. Its measurement method mainly includes the following steps:
1. Select units of ℃ or ℉ and emissivity as needed
2. After aligning the infrared ray of the thermometer with the object to be measured, press the measurement button to start measuring, release the measurement button to hold the data, and repeat the measurement several times
3. By pressing the "SEL" button, read the maximum, minimum, average, and large difference values of the temperature of the measured object.
Advantages of infrared thermometer
There are many advantages to non-contact temperature measurement by receiving infrared radiation from the measured object. In this way, temperature measurements can be carried out without problems for objects that are difficult to reach or move, such as materials with poor heat transfer performance or very small heat capacity. The infrared thermometer has a short response time and can quickly adjust the circuit. The thermometer does not have components that can wear out, so there is no continuous cost like using a thermometer. Especially in very small measured objects, such as using contact measurement, the thermal conductivity of the object will result in significant measurement errors. There is no doubt that thermometers can be used here, as well as for corrosive chemicals or surfaces, such as on paint, paper, and plastic tracks. By remote control measurement, operators can stay away from hazardous areas and avoid danger
