Application of Infrared Thermometer in Factory
Temperature, pressure, current, voltage, etc. are all basic physical quantities that people are familiar with. In the industrial field, it has a great influence on the quality of products and the control of the whole process. Among these basic physical quantities, the measurement and calibration of temperature are much more difficult. This is because the influence of the "adiabatic" and "heat transfer" of the temperature system itself is very complicated, which results in a large volume of the temperature measurement and calibration system, a long stabilization time required, and difficulty in improving the accuracy. Unlike the pressure system, as long as the leakage of the pressure transmission pipeline is guaranteed, the internal and external pressure can be guaranteed to be independent of each other. In this way, it is easy to achieve rapid pressure transmission, the stabilization time is only a few milliseconds, and the measurement accuracy can easily reach more than a few ten thousandths.
Application of Infrared Thermometer in Factory
Looking at a high-precision and high-stability temperature measurement system, it is impossible to ensure that it is "adiabatic", that is, completely preventing 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 temperature calibration source. To ensure a certain temperature field uniformity, the volume of the device is large, and the heating and cooling time is long, resulting in the inspection, maintenance and calibration of the temperature measurement system in the industrial field, which is time-consuming, laborious and costly, and affects the reliability of the system due to multiple disassembly and assembly of the temperature probe. .
Application of Infrared Thermometer in Factory
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 the combination of various factors, the portable temperature calibrator with a certain degree of ultra-small volume and rapid temperature rise and fall is an on-site application instrument that has been explored and developed for many years in the field of temperature measurement technology.
