Introduction and principle knowledge of human body infrared thermometer
Infrared temperature measurement technology plays an important role in product quality control and monitoring, online fault diagnosis and safety protection of equipment, and energy conservation in the production process. In the past 20 years, non-contact infrared human body thermometers have developed rapidly in technology, with continuously improved performance, enhanced functions, increasing varieties, and expanding applicability. Compared to contact based temperature measurement methods, infrared temperature measurement has advantages such as fast response time, non-contact, safe use, and long service life. Non contact infrared thermometers include three series: portable, online, and scanning, and are equipped with various options and computer software. Each series also has various models and specifications. Choosing the correct infrared thermometer model is crucial for users among various types of thermometers with different specifications.
The infrared thermometer used to test human body temperature is called a human body infrared thermometer. However, it must be clarified that there is no specialized distinction between medical or industrial infrared thermometers, as the manufacturing principles of infrared thermometers are consistent. There is only a distinction between high-precision, high distance coefficient ratio, high-performance infrared thermometers and low precision, low distance coefficient ratio, and low performance infrared thermometers. As long as the emissivity of the infrared thermometer is set to 0.95 (the emissivity of human skin is usually this value, and even if there is a difference, the impact is only within 0.3 degrees), it meets the requirements for human temperature measurement. (For example, all brands of cars can reach a speed of 40 kilometers per hour, and high-end cars may reach a speed of 200 kilometers per hour, but there is no distinction between cars that specialize in running 40 kilometers per hour and cars that specialize in running 200 kilometers per hour, only the difference between cars with high and low performance.)
