Medial Grade Non Contact Forehead Infrared Thermometer With Back Light Display

Human body infrared thermometer

Infrared thermometer consists of optical system, photodetector, signal amplifier, signal processing, display output

and other parts. The optical system gathers the target infrared radiation energy in its field of view, and the size

of the field of view is determined by the optical parts of the thermometer and its position. The infrared energy is

focused on the photodetector and converted into a corresponding electrical signal. The signal passes through the

amplifier and the signal processing circuit, and is converted into the temperature value of the measured target

after being corrected according to the internal therapy algorithm and target emissivity of the instrument.

Temperature measurement principle

The principle of infrared thermometer's temperature measurement is to convert the radiant energy possessed by

infrared rays emitted by the measured object into electrical signals. The amount of infrared radiation energy is

related to the temperature of the object itself, and the temperature of the object can be determined according to

the size of the converted electrical signal. All objects above absolute zero will radiate infrared rays by

themselves. The function of the infrared thermometer is to collect the infrared rays emitted by the object. It will

not emit any harmful radiation at all, so it is completely harmless to the human body. Some people have

misunderstood that infrared thermometers emit radiation to the human body to produce readings. This concept is

wrong.

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