What should be paid attention to when using human infrared thermometer?
The infrared thermometer measures the infrared radiation of the object to be measured (the surface of the human body, the ear cavity, etc.), and after proper calibration, it outputs a photoelectric device that indicates the temperature of a certain part of the body. It is mainly divided into three categories: infrared forehead thermometer, infrared outer ear thermometer, and infrared screening instrument. As an important medical device, the human body infrared thermometer plays an important role in the prevention and control of the epidemic. Then, let's learn about the precautions for using the human body infrared thermometer!
At present, in the fight against new pneumonia, human infrared thermometers are widely used as body temperature measurement equipment in hospitals, airports, railway stations, docks, subway stations, highway intersections and other public places.
1. The human body infrared thermometer is a medical device and needs to be calibrated before use. At present, my country's existing technical specifications such as JJF1107 "Calibration Specifications for Infrared Thermometers for Measuring Human Body Temperature" have become the basis for the measurement and detection of human infrared thermometers. After the measurement correction is corrected, its measurement data is more accurate.
It is recommended to disable it when the data of the measuring device during calibration is very large, the measurement reproducibility is poor, and the performance is unstable.
2. There are many types of infrared thermometers for human body, and their design ideas, operating habits, internal settings, etc. have certain differences. Therefore, when using a human body infrared temperature measuring instrument, you should read the product manual carefully and be familiar with the basic functions of the instrument, which will help you use the measuring instrument scientifically and accurately.
3. The operating ambient temperature proposed in many product manuals is (16 (35 ), and the ambient temperature of some manufacturers’ internal test data is) 10 ) 40). In outdoors where the ambient temperature is lower than 10, due to the fact that manufacturers who conduct a large number of sample tests Less, the ambient temperature is lower than 16. Very strong. When measuring human body temperature outdoors, it is recommended to measure in a place where there is no strong convection, no strong radiation, no high humidity, and the temperature is relatively constant and higher than 10. At the same time, it is necessary to ensure that the temperature measuring instrument works under stable environmental conditions for a long time.
4. When following the specific precautions mentioned in each product manual. When measuring body temperature with a human body infrared thermometer, it is recommended to align the measuring device (forehead thermometer) with the center of the forehead (keep vertical above the eyebrows) to avoid hair, sweat, hats, etc. hidden in the measurement site, and the measurement distance is (1~3 ) cm. Maintain the same operating specifications, repeat the measurement twice within 1 minute, if the difference between the two measurement data is within 0.3, the data can be accepted, otherwise it needs to be measured again after the test.
5. The measured object of the human body infrared thermometer is the target human body part during measurement. In terms of measurement principles, especially in forehead thermometers, the environment of the measurement site has a great influence on the measurement results. When measuring the temperature of the human body in the car at a highway intersection, the temperature of the person being measured is too high due to the high temperature of the air conditioner in the car and the large temperature difference with the outside. The people in the car and the measuring instrument are at the same ambient temperature. If the measurement is not performed in thermal equilibrium, the measurement data will not be reliable. Therefore, at a highway intersection, when queuing up for temperature measurement, it is recommended that people in the car open the windows for ventilation as soon as possible, and wait for the temperature of the human body and the outside air to reach a thermal balance before taking the measurement. After cooling the forehead of some fever patients with cold compresses and sweating, the measurement results will decrease, which must be scientifically identified. Some subjects wore masks too much, they could not breathe well, and their faces were swollen. At this time, the measurement data also has deviations.
