Do infrared thermometers harm the human body?
By our domestic experts know the seminars and experiments, infrared thermometer is to accept the radiation of the human body, belongs to the completely passive work instrumentation, does not emit any electromagnetic waves, the human body does not produce the slightest harm.
The role of the red laser is only to play a role in assisting the aiming, please note that the laser should not be aimed at the eyes, or measure the human body when the laser is turned off.
The principle of infrared thermometer is based on Planck's and Boltzmann's law, non-contact infrared thermometer by absorbing the infrared energy radiated from the surface of the human body to determine the surface temperature of the object, i.e., infrared probe will be detected infrared energy into an electrical signal, and then through the circuit arithmetic processing, and ultimately converted into a temperature reading.
Infrared thermometer how far the measurement is more appropriate
Please pay attention to the distance coefficient labeled on the instrument, usually the larger the coefficient is, it represents that a smaller target can be measured at the same distance, or the same large target can be measured at a longer distance.
Try to require the person to be measured to stay long enough in the measurement environment; the measurement place should be indoor as much as possible, and avoid direct sunlight on the infrared radiation thermometer and the forehead of the person to be measured; to make an accurate estimation of the distance of the person to be measured; the temperature of the forehead of the person is generally lower than the armpit temperature of 1-3 degrees Celsius, which should be converted from the armpit temperature data of the fever to the forehead temperature data.
Infrared ear thermometer is to measure the ear temperature, it can be measured within 1 second. Since human eardrum and ear canal are less affected by external environmental conditions, infrared ear thermometer can accurately measure the body temperature. Human ear temperature is generally higher than the armpit temperature of 0.4 degrees Celsius. This is the infrared ear thermometer indication value should be converted from fever underarm temperature data to ear temperature temperature data;
In order to ensure the accuracy and stability of infrared radiation thermometer, should be regularly and standard calibration of the device for calibration; non-contact infrared radiation thermometer industrial and medical two kinds of measurement of body temperature should be selected medical infrared radiation thermometer, because of the relatively wide range of industrial, low-resolution, error; a variety of infrared thermometer according to the measurement of the accuracy of the high to the bottom: the medical thermometer, infrared ear thermometer, the surface of the body infrared radiation thermometer. Infrared radiation thermometer.
