Difference between human and industrial thermometers
The human infrared thermometer is mainly used to measure the temperature of the human body, while the industrial infrared thermometer, as the name suggests, is mainly used in the industrial field. 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 0.2 degrees), it meets the requirements for human temperature measurement.
One reason is that the human infrared thermometer has a small temperature range of 30-42.5 degrees, but the display accuracy is high. Industrial infrared thermometers have a large range, such as measuring -50 to 2200 degrees.
Secondly, human infrared thermometers need to be close to the human body, within 1-15cm. Industrial infrared thermometers should be larger than 1M. If measuring the temperature of molten steel, people cannot be too close, and some require around 10M. Measuring near and far mainly refers to the intensity of infrared waves emitted by thermometers. The infrared wave of the human body infrared thermometer is too strong and harmful to the human body, so it is not necessary.
Therefore, we can choose the appropriate thermometer according to our needs, which can be divided into three aspects: performance indicators, such as temperature range, spot size, working wavelength, measurement accuracy, response time, etc; In terms of environment and working conditions, such as ambient temperature, windows, display and output, protective accessories, etc; Other factors such as ease of use, maintenance and calibration performance, and price also have a certain impact on the selection of infrared thermometers.
