Does the non-sensing thermometer measure body temperature or internal temperature?
Professional non-sensing temperature-measuring equipment includes forehead temperature guns and the like. The values given are not body surface temperature, but body temperature converted from body surface temperature. Body surface temperature itself cannot be used as a criterion for judging abnormal body temperature, because there are many factors that affect body surface temperature. If you only look at body surface temperature, then the measured value has no reference value when the room temperature is low or high. Because the purpose of temperature measurement is to judge abnormalities, since there must be a reference value to judge abnormalities, otherwise how to judge, and the reference value is the body temperature, because the human body is a heat balance system, the change of body temperature is very limited, basically at 36 In the range of -37 degrees, but if you only look at the body surface, when the temperature is relatively low, it is impossible for the body surface temperature to reach 36 degrees, and sometimes even 30 degrees. The temperature may exceed 37 degrees. At this time, everyone's body temperature is abnormal, and the thermometer is of little use value. Many unprofessional manufacturers do not understand the logic of this temperature measurement, and directly tell customers that they cannot be used at high or low temperatures, which greatly limits the use scenarios of the equipment. kind of false positive. Professional non-sensing temperature measurement manufacturers have core temperature measurement algorithms and rigorous temperature measurement logic. This cannot be solved simply by a temperature measurement sensor. Temperature measurement is a set of system design, not hardware performance.
Non-sensing thermometers measure body surface temperature, and non-sensing thermometers include contact infrared thermometers and non-contact infrared thermometers. Infrared thermal imaging thermometers Infrared thermal imaging cameras cannot directly measure the internal temperature, only the surface temperature. The infrared thermal imaging thermometer uses the infrared detector and the optical imaging objective lens to receive the infrared radiation energy distribution of the measured target, and reflects it on the photosensitive element of the infrared detector to obtain an infrared thermal image, which is consistent with the surface of the object corresponding to the heat distribution field. In layman's terms, an infrared thermal imaging thermometer converts the invisible infrared energy emitted by an object into a visible thermal image.
