Under the current situation of epidemic prevention and control, relevant staff will use a forehead thermometer to measure everyone's body temperature every day when commuting in and out of office buildings and in and out of the community. Forehead thermometers have become another epidemic prevention tool after protective masks. To fight the "epidemic" line of defense that must be passed every day. But everyone also discovered that some staff measured their foreheads, some measured their wrists, and many of my friends had encountered problems where the forehead thermometer was inaccurate, and their body temperature fluctuated up and down. How does the forehead thermometer work? How to use the forehead thermometer correctly? Today we will share with you.
The working principle of forehead temperature gun
Forehead temperature gun also known as infrared thermometer, measures human body temperature by absorbing infrared radiation energy emitted by human body without touching human skin, avoiding cross-infection; suitable for home users, hotels, libraries, and large enterprises and institutions. It can also be used in hospitals, schools, customs, airports and other comprehensive places, and can also be used by medical staff in clinics.
Any object will emit infrared rays when it is above absolute zero (-273°C), and the forehead gun receives infrared rays through the sensor to obtain the sensing temperature data.
| 人体 | Human body |
| 红外线辐射能量 | Infrared radiation energy |
| 热释电红外传感器 | Pyroelectric infrared sensor |
| 电信号 | Electric signal |
| 体温 | Body temperature |
| 温度数值 | Temperature value |
Precautions for using forehead temperature gun
1. Please read the instructions for use before the measurement. The forehead of the subject should be kept dry, and the hair should not cover the forehead (please perform the measurement in an environment of 10°C to 40°C) to ensure the accuracy of the measurement;
2. The forehead temperature measured quickly by the forehead thermometer is for reference only and should not be used as a basis for medical judgment. If any abnormal body temperature is found, please use a medical thermometer for further measurement;
3. Please protect the sensor lens of the forehead gun and clean it in time. If the change in the environment temperature is too large, place the forehead gun in the environment to be used for 20 minutes and wait for it to stabilize to adapt to the environment temperature before using the measurement to obtain a more accurate measurement value.
