The classification of infrared thermometers, what is the general temperature measurement range of in

In layman's terms, a thermal imaging camera is the transformation of the invisible infrared energy emitted by an object into a visible thermal image. The different colors on the top of the thermal image represent the different temperatures of the object being measured. By viewing the thermal image, the overall temperature distribution of the measured target can be observed, and the heating situation of the target can be studied, which provides a basis for judgment for work and research.

The thermal imaging cameras we commonly use are passive thermal imaging tests and are very safe. According to the atmospheric window, infrared rays are divided into near-infrared, short-wave infrared, medium-wave infrared, and long-wave infrared. Long-wave infrared can be observed through air, not through walls and glass, and has the advantages of all-weather imaging, non-contact temperature measurement, and smoke penetration.

If you want to know more about the principles, products and case introductions related to infrared thermal imaging cameras, or want engineers to demonstrate for free, you can find Shanghai Thermal Imaging Technology Co., Ltd., its brand "Fotric Fei Infrastructure".

Fotric has been focusing on the field of infrared thermal imaging professional temperature measurement for ten years and continues to innovate, with handheld, first-class, body temperature screening and other product lines readily available, 100+ rich product models to choose from, and 1000+ rich application cases in various subdivided industries.

The company is a high-tech enterprise, headquartered in Shanghai, China, while having offices in Beijing, Wuxi, Nanjing, Jinan, Xi'an, and distributors in more than 30 countries and regions such as North America, Europe, South Korea, Singapore, Australia, etc., and has passed the international ISO:9001 quality system certification, the United States FCC certification, and the European CE certification. At the same time, the company is committed to the intelligent innovation of thermal imaging technology, and its products are widely used in electric power, industry, steel, petrochemical, electronics, scientific research and other industries, and have been recognized by 10,000+ industrial customers such as State Grid, Sinopec, Baosteel, Huaneng, Huadian, SAIC, etc., and the strength of manufacturers is trustworthy.

The commonly used human infrared thermometer can be divided into two categories: infrared thermal imaging body temperature rapid screening instrument and infrared thermometer.

Infrared thermal imaging body temperature rapid screening instrument can be used for large-area monitoring in dense public places, automatically track and alarm high temperature areas, and cooperate with visible light to quickly find and track people with high body temperature. There is no need for staff to check customs clearance personnel at close range, and long-distance temperature measurement not only respects each other's privacy, but also reduces close contact and crowd gatheringthe risk of cross-infection; The integrated intelligent temperature measurement platform system realizes unmanned operation.

Infrared thermometer can be divided into infrared ear thermometer and infrared forehead thermometer, infrared thermometer equipment is simple, easy to use, affordable, can realize the sequential and rapid temperature measurement of personnel. However, it is not suitable for places with large amounts.

It is necessary to look at the size of the target and the distance coefficient of the thermometer, the measurement distance = the minimum diameter of the target * the distance coefficient, and also pay attention to the provisions of the minimum measurement distance.

The infrared thermometer book is the temperature of the surface, but the measurement is to know the emissivity of the measured target, and then set it in the thermometer menu. If the ambient temperature is very high, add an air purge, and a water cooling jacket. If the environment is very bad, use dual wavelength.

The distance coefficient is determined by the ratio of d:s, i.e., the ratio of the distance d between the thermometer probe and the target to the diameter of the target to be measured. If the thermometer has to be installed far away from the target due to environmental conditions, and small targets are to be measured, a thermometer with high optical resolution should be chosen.

The higher the optical resolution, i.e. the higher the d:s ratio, the higher the cost of the thermometer.

Do you want to ask about industrial thermometers or thermal drawing thermometers, industrial thermometers are generally used to test the temperature of objects in the industrial production process, and the temperature measurement range is relatively wide, from a few degrees to thousands of degrees, and the error range of temperature measurement is relatively large. The human body thermometer is an instrument for measuring the surface temperature of the human body, and the temperature range is generally between 25-45 degrees, and the temperature measurement error is relatively small.

The industrial-grade infrared thermometer has a wide range of temperature measurement, and the infrared thermometer for human use is a little smaller, about 20 degrees to 40 degrees, but few products can meet the medical requirements. The fractional thermometer meets the requirements of medical accuracy, with small error, faster speed, and can be used normally in high temperature weather, and the principle is a little different from that of infrared thermometer.

In fact, there are any ranges, you can customize them according to your needs, you want 0 to 50 degrees, 0 to 100 degrees, depending on what you use it for. The average food processing plant uses 0 to 500 degrees.

The temperature range is different according to different wavelengths, which can be calculated using the Wayne formula.

Dear landlord:

Generally between -20 and 2000.

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Red closed air thermal imaging cameras are generally spectrophotometer scanning imaging systems and non-scanning imaging systems. The opto-mechanical scanning imaging system uses a unit or multivariate (the number of elements has even more) photoconductive or photovoltaic infrared detectors, and the speed is slow when using the unit detector, mainly because the slow frame response time is not fast enough, and the multi-array detector can be made into a high-speed real-time thermal imager. Non-scanning imaging cameras, such as the focal plane thermal imager for array gaze imaging launched in recent years, are a new generation of thermal imaging devices, which are much better than optomechanical scanning thermal imaging cameras in terms of performance, and have a tendency to gradually replace disturbed optical scanning thermal imaging cameras.

Its key technology is that the detector is composed of a monolithic integrated circuit, the entire field of view of the measured target is focused on it, and the image is clearer, more convenient to use, the instrument is very small and lightweight, and at the same time has the functions of automatic focusing image freezing, continuous magnification, point temperature, line temperature, isothermal and voice annotation image, the instrument uses a PC card, and the storage capacity can be up to 500 images.

<> infrared thermometer standard temperature is between 36 and 36 degrees, which measures the temperature of the first surface, which is easily affected by the environment. The thermometer is a kind of thermometer, which uses the principle of infrared transmission of numbers to sense the surface temperature of the object, which is more convenient to operate, especially for the measurement of high-temperature objects. It is widely used in the measurement of surface temperature of various objects, such as steel casting, furnace temperature, machine parts, glass and room temperature, body temperature, etc.

The infrared thermometer is composed of an optical system, a photodetector grinding, a signal amplifier and signal processing, and a display output.

The infrared thermometer can quickly and accurately detect small changes in temperature within the measurement range, which plays an important role in equipment inspection and preventive maintenance.

Infrared temperature measurement technology plays an important role in product quality control and monitoring, equipment fault diagnosis and safety protection, and energy saving in the production process. In the past 20 years, the non-contact infrared human body thermometer has developed rapidly in technology, the performance has been continuously improved, the function has been continuously enhanced, the variety has been increasing, and the scope of application has been expanding.

Compared with the contact temperature measurement method, infrared temperature measurement has the advantages of fast response time, non-contact, safe use and long service life. Non-contact infrared thermometers are available in three series: portable, ** and scanning, with a variety of options and computer software, each available in a variety of models and specifications. Among the various models of thermometers of different specifications, it is very important for users to choose the correct model of infrared thermometer.

Summary. What is the general temperature measurement range of an infrared thermometer?