Does the infrared thermometer play a big role in the factory application?
Temperature, pressure, current, voltage, etc. are all basic physical quantities that people are familiar with. Infrared thermometers have a great influence on the quality of products and the control of the whole process in the industrial field. Among these basic physical quantities, the measurement and calibration of temperature are much more difficult. For infrared thermometers, this is because the influence of the "thermal insulation" and "heat transfer" of the temperature system itself is very complicated, which results in a large volume of the temperature measurement calibration system, a long stabilization time required, and difficulty in improving the accuracy. Unlike the pressure system, as long as the pressure transmission pipeline leaks, the internal and external pressure can be guaranteed to be independent of each other. In this way, the infrared thermometer can easily realize the rapid transmission of pressure. The stabilization time only takes a few milliseconds and the measurement accuracy can easily reach a few ten thousandths. above.
Let's take a look at a high-precision and high-stability temperature measurement system. The infrared thermometer ensures that it is "adiabatic", which means that it is impossible to completely prevent heat transfer. People usually think that the temperature field gradient of a small volume at the center of its internal mass is sufficiently balanced under the condition that a sufficiently large volume reaches thermal equilibrium, which is one of the important reasons why the temperature calibration source is bulky. In addition, the heat transfer of a temperature system is also very complicated, and it is often completed through heat conduction, convection and radiation. It is conceivable that it is almost impossible to make the temperature suddenly change and reach thermal equilibrium. This is the conventional infrared thermometer. In order to ensure a certain uniformity of the temperature field, the temperature calibration source has a large volume and takes a long time to heat up and cool down, resulting in the inspection, maintenance and calibration of the temperature measurement system in the industrial field, which is time-consuming, laborious and expensive, and is affected by multiple disassembly and assembly of the temperature probe. System reliability.
The industrial field hopes to have a small and light portable temperature calibration source (constant temperature bath) like a pressure calibrator. However, this small and portable temperature calibrator must overcome the uniformity of the temperature field caused by the reduction in volume** And the disadvantages of poor stability, to make the temperature rise and fall stable in a short period of time, there must be a close cooperation between heating and cooling, which can reduce the heating and cooling time, and cooling and heating in the miniaturized constant temperature tank will affect the temperature. The uniformity of the temperature field, so comprehensive factors, the infrared thermometer achieves ultra-small volume and has a certain accuracy, and the portable temperature calibrator of the infrared thermometer quickly rises and falls. The infrared thermometer is the field of temperature measurement technology. Many years of exploration and development of the desired field application instrument.
Electric power: temperature protection and signal transmission of coal-fired power plants, gas heating power plants, hydropower plants, nuclear power plants, district heating pipe networks, large power transformers, etc.
Metallurgy: aluminum plants, copper plants, steel plants, etc.
Petrochemical: oil extraction, oil pipelines, petrochemical plants, refineries.
General industry: Refrigerator factory, air conditioner factory, refrigerator factory, brewery, pharmaceutical factory, automobile factory.
