Henan infrared forehead temperature gun factory talk about the physical principle of infrared thermometer

　　Henan infrared forehead temperature gun factoryOn the physical principle of infrared thermometer

Henan infrared forehead temperature gun factory: the physical principle of infrared thermometer

　　Henan infrared forehead temperature gun factoryThe editor told everyone that the infrared thermometer has a certain predictive ability, can check dangerous points, take precautions, effectively measure and control transmission line equipment, can quickly detect small changes in operating temperature, solve the problem in the budding state of defects, reduce the losses caused by line equipment failures, and in the increasingly complex maintenance of transmission line conditions, infrared detection has the characteristics of long-distance, no power failure, no contact and no disassembly, which provides an advanced means for transmission line condition monitoring. Through laser or telescope aiming, the product can carry out remote real-time online diagnosis of small targets such as the connection switch clamp of electrical equipment, which plays an important role in the safe operation of power and railway and the prevention of accidents.

In fact, infrared is also an electromagnetic wave with a wavelength of 0.78 microns to 1000 microns. For convenience of research, it is divided into three bands: near infrared: wavelength 0.78-3.0 microns, mid infrared: wavelength 3.0-20 microns, far infrared: wavelength 20-1000 microns. The discovery of infrared marks another leap in human understanding of nature. This instrument is very convenient to use, and more convenient is that temperature can be measured without touching physical objects, greatly improve the efficiency of people's production and life.

　　Henan infrared forehead temperature gun factory: What is the physical principle of infrared thermometer?

Any object with a temperature above zero will continue to emit infrared radiation energy to the surrounding space. The infrared radiation energy of the target and its wavelength distribution are closely related to the surface temperature of the target. Therefore, by measuring the infrared energy of the object itself, the surface temperature of the object can be measured, which is the objective basis of infrared radiation temperature measurement.

The blackbody is an ideal radiator, it can absorb all wavelengths of radiant energy, and its surface emissivity is 1. From the blackbody radiation spectrum distribution diagram at different temperatures, it can be seen that when the temperature rises, the total radiant energy increases rapidly (the total radiant energy around the corresponding curve and wavelength coordinates increases rapidly), so the instrument design has different bands at different temperatures.

The infrared thermometer adopts point-by-point analysis method, concentrates the local thermal radiation of the target on a single detector, and converts the radiation power into temperature by knowing the emissivity of the target. Its basic structure is mainly composed of optical system, photoelectric detector, signal amplifier, signal processing, display output and other components. After the infrared radiation emitted by the radiator enters the optical system, it is modulated and changed by the modulator, and then converted into corresponding electrical signals from the detector, according to the internal algorithm of the instrument and the emissivity of the target, it is converted into the temperature value of the measured target by the amplifier and the signal processing circuit.

The above is the content of "the physical principle of infrared thermometer" explained by the small editor of Henan infrared forehead temperature gun factory, do you all understand? I hope the above content can help you, thank you for watching, we'll see you in the next issue.