The difference between industrial thermometer and medical thermometer
The principle of thermometer
A thermometer is a type of thermometer that uses the principle of infrared transmission of numbers to sense the surface temperature of an object. It is relatively easy to operate, especially for measuring high-temperature objects. Widely used, such as steel casting, furnace temperature, machine parts, glass and room temperature, body temperature and other surface temperature measurement of various objects. The most commonly used one is the infrared thermometer.
Infrared thermometer consists of optical system, photoelectric detector, signal amplifier, signal processing, display output and other parts. The optical system gathers the target infrared radiation energy within its field of view. The size of the field of view is determined by the optical parts of the thermometer and their positions. The infrared energy is focused on the photodetector and converted into a corresponding electrical signal. The signal passes through the amplifier and signal processing circuit, and is converted into the temperature value of the measured target after correction according to the algorithm inside the instrument and the target emissivity.
The difference between industrial thermometer and medical thermometer
Whether it is a medical or industrial infrared thermometer, its principle is to receive infrared waves emitted by the human body. Industrial infrared thermometers measure the surface temperature of the human body. The normal human forehead temperature is about 1-2°C lower than the armpit temperature, and the forehead changes greatly due to environmental influences. Therefore, armpit body temperature is used as a medical temperature measurement in clinical medicine. Before leaving the factory, the medical thermometer has revised the difference or limited the relevant range through software. Industrial products provide more realistic feedback on temperature measurement conditions. The emissivity of the normal human body is 0.98 (the thermometer defaults to 0.95), so the measured result is around 34-35°C. The BG45R product can correct the difference by modifying the emissivity to 0.98 to avoid inaccurate body temperature when used by non-professionals.
(Note: The forehead is greatly affected by the environment, so it is only for reference for preliminary troubleshooting. The principle is the same whether it is a medical or industrial detector. I hope it will be helpful to everyone.)
