Traditional Culture Encyclopedia - Weather inquiry - What happened to the forehead temperature gun?
What happened to the forehead temperature gun?
1, the forehead temperature gun is not allowed because:
1) The unit of measurement is set incorrectly: the mode and unit of measurement of the forehead temperature gun. Some forehead temperature guns have two functions: body surface temperature and body temperature, even if you choose the wrong mode. The unit of measurement should be degrees Celsius, not degrees Fahrenheit. The difference in quantity between the two can be described as a world of difference.
2) External factors: accurate temperature measurement needs to exclude the following external interference factors, such as measuring air, water vapor and other obstructions in the environment, which will change the radiation curve of the object and lead to inaccurate temperature measurement. It is necessary to ensure that the optical system of the thermometer is partially clean, free from dust, water vapor and other influences, and free from sweat, hair, dust, hats and other sundries on the forehead and ear canal of the subject. At the same time, temperature measurement needs a windless indoor environment, and it also needs to ensure that there is no large temperature difference during the use of the instrument to ensure the normal working environment of the instrument (higher than 16). If the outdoor weather is cold, the temperature measured by the thermometer has no reference value and belongs to abnormal work.
3) Instrument damage: If the forehead temperature gun is dropped or damaged, it will also lead to the phenomenon of old inaccuracy in use and measurement. At this time, you should buy a new forehead temperature gun and replace the measurement.
2, forehead temperature gun adjustment method
1) Test several times more.
If it is suspected that the forehead temperature gun is not accurate, it is suggested to rule out the above factors first, and then measure it several times, or measure the person with normal temperature first, and then measure the subject. In addition, when the measured person comes from a place with a large difference from the ambient temperature, he should stay in the measurement environment for at least 5 minutes, and then measure after it is consistent with the ambient temperature, otherwise the measurement result will be affected.
2) Keep the forehead temperature gun warm.
Many people can't work normally because the temperature is too low to let the forehead temperature measuring gun. Suggestions are as follows: first, put the infrared thermometer in a dry incubator with suitable temperature and use it alternately; Second, put the infrared thermometer near the heating equipment (be careful not to bake at high temperature) and keep warm; The third is to put the infrared thermometer into the clothes to keep warm with the body temperature, or put the warm baby on the infrared thermometer to keep warm (pay attention to timely replacement). Fourthly, put the measuring instrument in the environment to be measured for 20 minutes, and then use it after it is stably adapted to the ambient temperature, so that more accurate values can be measured.
3) Calibration according to specifications.
According to the existing technical specifications in China, such as JJF 1 107 Calibration Specification for Infrared Thermometers for Measuring Human Body Temperature, the instrument should be calibrated in the nearest legal metrological technical institution. If the calibration finds that the instrument has large data error, poor measurement repeatability and unstable performance, it is recommended to stop using it.
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