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Your location: Home > Related Articles > Interpretation of the principle of operation of the infrared thermometer

Interpretation of the principle of operation of the infrared thermometer

Author:QINSUN Released in:2023-06 Click:112

Infrared thermometer is actually a kind of electromagnetic wave, its wavelength ranges from 0.78 microns to 1000 microns.

For the convenience of research, the infrared thermometer is divided into three bands by scientists, near infrared: the wavelength is 0.78 microns to 3.0 microns, Mid Infrared: wavelength is 3.0 microns to 20 microns, Far Infrared: wavelength is 20 microns to 1000 microns.

The discovery of infrared marks a new advance in human understanding of nature.

The infrared thermometer is very convenient to use, and what is even more convenient is that it can measure the temperature without touching the actual object, which greatly improves the production and people\'s life efficiency.

In the production process, infrared temperature measurement technology plays an important role in controlling and monitoring.Launch product quality, online fault diagnosis and equipment safety protection, and energy saving.

In the past 20 years, the human body non-contact infrared thermometer has developed rapidly in technology, its performance has been continuously improved, its functions have been continuously improved, its varieties continued to increase and its scope also continued to expand.

Compared with contact temperature measurement methods, infrared temperature measurement has the advantages of fast response time, safe and non-contact use, and a long life.

Non-contact infrared thermometers include three series of handheld, in-line and scanning, and are equipped with various computer options and software, and each series has different models and specifications.

Among the diDifferent models of thermometers with different specifications, it is very important for users to choose the right model of infrared thermometer.

Infrared thermometer working principle

The optical system collects the target infrared radiation energy within its field of view and the size of the field of view are determined by the temperature of the thermometer. Optical parts and position determination.

The infrared energy is focused on a photodetector and converted into a corresponding electrical signal.

The signal is transformed into the temperature value of the measured target after being calibrated by the amplifier and the signal processing circuit according to the algorithm inside the instrument and the target emissivity.

In addition, the environmental conditions of the target and the thermometer must also be taken into account, such as the influence of factors such as temperatureure, atmosphere, pollution and interference on performance indicators and correction method.

All objects with a temperature above zero constantly radiate infrared radiation energy into the surrounding space.

The size of an object\'s infrared radiant energy and its distribution as a function of wavelength has a very close relationship with its surface temperature.

Therefore, by measuring the infrared energy radiated by the object itself, its surface temperature can be accurately determined, which is the objective basis for measuring the infrared radiation temperature.

Tags: infrared thermometer infrared thermometer