Can Thermal Imaging Cameras Measure Human Body Temperature? What is the Principle?

Infrared thermal imaging cameras can be used to detect human body temperature with high speed and high efficiency. Infrared camera for temperature measurement is more suitable for large-scale body temperature screening in places with high traffic. As for thermal image, different colors represent different temperatures of the measured object. By viewing the thermal image, the overall temperature distribution of the measured object can be observed. This detection method does not actively emit infrared radiation, but passively receives infrared radiation. It will cause harm to the human body, and everyone can use it with confidence. So what is the principle of infrared camera for temperature measurement?


1. Infrared camera for temperature measurement


In railway stations, subways, airports, hospitals, supermarkets and other places with high traffic flow, the use of ordinary infrared thermometers to measure body temperature is slow and inefficient, so infrared cameras for temperature measurement are adopted.


Thermal imaging cameras can measure body temperature. Its detector can passively receive the infrared radiation of the measured object, convert it into a temperature value, and finally visually display the temperature distribution of the measured object, with non-contact measurement. It has the characteristics of temperature visualization, large area measurement, avoiding missed detection, and no harm to the human body, so it is widely used in large-scale body temperature screening.


2. The principle of infrared camera for temperature measurement


An infrared thermometer is an infrared thermal imaging camera used to measure temperature. Infrared thermal imager temperature measurement can measure the body temperature of people entering and leaving a large area. This is very practical. Many friends do not know much about the working principle of infrared thermal imaging cameras. Let InfiRay® introduce to you:


The working principle of infrared thermal imager temperature measurement is: any object above absolute zero will emit infrared radiation, and the infrared radiation energy distribution map of the measured target is received by the infrared detector and the optical imaging objective lens, and it is reflected to the infrared detector. The thermal image corresponds to the thermal distribution field on the surface of the object, and different colors represent the different temperatures of the measured object. By viewing the thermal image, the entire object under test can be observed. Temperature distribution, study the heating situation of the target, so as to judge the next work.


3. Is the temperature measurement of infrared thermal imager harmful to the human body?


No. The principle of infrared camera for temperature measurement is to passively receive infrared radiation emitted by objects to image temperature measurement. It does not actively emit infrared light. Therefore, measuring body temperature with an infrared thermal imager will not cause harm to the human body.