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Infrared body temperature detector and supporting parts and other products are included in the key materials for epidemic prevention and control
Release date: July 20, 2020 17:13

The general office of the State Council issued the "emergency notice on the organization of the resumption of work, production and scheduling of key materials production enterprises for epidemic prevention and control". According to the notice, the relevant enterprises producing key medical emergency prevention and control materials should, according to the requirements of the material support group of the joint prevention and control mechanism of the State Council in response to the epidemic situation of new coronavirus infection, pay close attention to the purchase of raw materials and production of products To complete the production task in time and strengthen the product quality management to ensure that the materials meet the relevant safety standards. According to the requirements of the material support group, the relevant enterprises should timely report the production capacity, product inventory and other data. According to the emergency notice, the people's governments of all provinces (districts and cities) and the Ministry of transport have issued the Infrared thermometer And supporting parts and other products have been included in the production and transportation of key materials for epidemic prevention and control, helping enterprises to solve the difficulties and problems encountered in production and operation in a timely manner. Infrared temperature instrument The demand is huge. After the outbreak of the epidemic, the demand for all kinds of thermometers is increasing. The thermometer, which was only a daily preparation, has become a necessity in public places.

Finding people with abnormal body temperature in public places is a key step in epidemic prevention measures, which helps rapid screening. The epidemic not only makes many technology enterprises see the huge demand for medical devices, but also exposes some weaknesses in the manufacturing and production of related devices. Whereas Infrared thermometer There are many problems in the production and delivery of this kind of equipment due to the huge demand, the resumption of work and the supply of raw materials. In the face of the coming tide of returning to work in the Spring Festival, if the temperature measurement can not be carried out in the crowded places such as railway stations, airports, ports, passenger transport stations, expressways, port terminals and subway stations, it will affect the epidemic prevention and control.

Due to non-contact Infrared temperature instrument With the characteristics of non-contact, real-time and accurate temperature measurement, it is used in many places such as airports, railway stations and subway stations. Non contact Infrared temperature instrument There are two types of point type and surface type. The principle is roughly the same. They both use the infrared wave radiation emitted by human body to limit a certain temperature measurement range, select a certain emissivity, measurement distance and ambient temperature, so as to achieve a certain measurement accuracy. Point type non-contact type Infrared temperature instrument It includes ear warming and forehead warming.

Among them, point measurement, because the instrument itself has adjusted various parameters, and the measurement temperature range is relatively narrow, if the measurement environment range is set, then the accuracy is still relatively high, and the error may be only 0.5 ℃. Dot pattern Infrared temperature instrument Mainly for the individual non-contact measurement, but for densely populated areas, if a single measurement will take a long time. Therefore, in railway stations, airports and other occasions, it is necessary to quickly scan a group of people with surface temperature measurement system to detect individual individuals with abnormal temperature. such Infrared thermal imaging thermometer The detection distance can be adjusted and the average temperature can be set well in a specific temperature environment. If the temperature is higher than this, the instrument will send an alarm signal to screen out some high-risk individuals from a group of people, so as to further identify with a more accurate thermometer.

Red, orange, yellow, green, blue and purple are known as visible light of nature. In addition to visible light, there is a kind of "light" invisible to human beings, called "infrared". As long as the object is higher than absolute zero (- 273.16 ℃), it will radiate infrared rays. Therefore, all things in nature radiate this invisible infrared ray all the time, and human beings are no exception. The physical characteristics of infrared have a strong thermal effect, for example, the heat of the sun is mainly transmitted to the earth through infrared. Therefore, through the advanced photoelectric conversion effect of infrared detector, and through scientific algorithm and accurate program processing, the thermal information contained in it can be transformed into the temperature information of the surface of the object Infrared temperature measurement The basic principle of. This kind of infrared temperature measurement technology is called infrared thermal imaging technology.

Thermal imaging refers to the infrared radiation emitted by different parts of the object surface, which is detected by the infrared detector, after photoelectric conversion and signal processing, and then different colors are given to different temperatures. Finally, the black-and-white or color images representing the surface temperature distribution of the object are displayed on the screen, which is called thermal image. For some people who are worried that this detection method will cause damage to the body, "infrared temperature measurement products are passive detection of infrared, rather than emitting electromagnetic waves. Naturally, there is no so-called" radiation. ". In fact, its principle is similar to that of a camera. The camera will not cause harm to the human body, nor will our infrared camera. Therefore, if you encounter infrared temperature measurement products in various security inspection sites, you can safely accept the test. " But many infrared detectors still have technical pain points. For example, in object recognition, because the "emissivity of different objects" has an impact on the accuracy of temperature measurement. The emissivity is determined by the wavelength, temperature, material and surface condition of the object, so it needs technical progress to obtain more reliable data.

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