What is the difference between a human body thermometer and an industrial thermometer?
In the production process, infrared temperature measurement technology plays an important role in product quality control and monitoring, equipment online fault diagnosis and safety protection, and energy saving.
Understanding infrared thermometers, working principles and technical indicators, environmental conditions, operation and maintenance is the basis for users to choose and use infrared thermometers correctly. The optical system collects the infrared radiant energy of the target within its field of view, the size of the field of view is determined by the position of the optical components and the thermometer. Infrared energy is focused on a photodetector and converted into a corresponding electrical signal. The signal is corrected by the amplifier and signal processing circuit according to the algorithm inside the instrument and the emissivity of the target, and then converted into the temperature value of the measured target. In addition, the environmental conditions of the target and the thermometer, such as temperature, atmosphere, pollution and interference, should also be considered, and the correction method should be considered.
All objects with a temperature above absolute zero are constantly emitting infrared radiation energy into the surrounding space. An object's infrared radiation energy and its wavelength distribution - is closely related to its surface temperature. Therefore, by measuring the infrared energy radiated by the object itself, its surface temperature can be accurately measured, which is the objective basis for infrared radiation temperature measurement.
Here, we have to make it clear that the principle of infrared thermometers for human body and industrial use is the same.
The main difference lies in the signal data processing process and the temperature calibration process at a certain distance. Temperature calibration is the testing process for the accuracy of all infrared thermometers. On the basis of ordinary thermometers, human body thermometers are more in line with the range of human body temperature, such as 30-45 degrees. During the calibration process, only this part of the temperature is calibrated more carefully. Ordinary industrial thermometers only have a wider temperature range and a longer measurement distance, and generally measure higher temperatures.
