More technical introduction of infrared thermometer
In the production process, infrared temperature measurement technology plays an important role in product quality control and monitoring, equipment online fault diagnosis and safety protection, and energy saving. In the past 20 years, non-contact infrared thermometers have developed rapidly in technology, their performance has been continuously improved, their functions have been continuously enhanced, their varieties have continued to increase, their scope of application has also continued to expand, and their market share has increased year by year. Compared with contact temperature measurement methods, infrared temperature measurement has the advantages of fast response time, non-contact, safe use and long service life. Non-contact infrared thermometers include three series of portable, on-line and scanning, and are equipped with various options and computer software, and each series has various models and specifications. Among the various models of thermometers with different specifications, it is very important for users to choose the correct model of infrared thermometer.
Infrared detection technology is a key promotion project of national scientific and technological achievements during the "Ninth Five-Year Plan". The emitted infrared (infrared radiation) displays its thermal image on the fluorescent screen, thereby accurately judging the temperature distribution of the object surface, which has the advantages of accuracy, real-time, and speed. Due to the movement of its own molecules, any object continuously radiates infrared heat energy outward, thus forming a certain temperature field on the surface of the object, commonly known as "thermal image". Infrared diagnostic technology absorbs this infrared radiation energy to measure the temperature of the equipment surface and the distribution of the temperature field, so as to judge the heating condition of the equipment. At present, there are many test equipments using infrared diagnosis technology, such as infrared thermometer, infrared thermal TV, infrared thermal imager and so on. Equipment such as infrared thermal TVs and infrared thermal imaging cameras use thermal imaging technology to convert this invisible "thermal image" into a visible light image, making the test effect intuitive, high sensitivity, and able to detect subtle changes in the thermal state of the equipment and accurately reflect The internal and external heating conditions of the equipment have high reliability and are very effective in discovering hidden dangers of equipment.
Infrared diagnostic technology can make reliable predictions for early failure defects and insulation performance of electrical equipment, and improve the preventive test maintenance of traditional electrical equipment (preventive test is the standard introduced in the former Soviet Union in the 1950s) to the predictive state maintenance, which is also the modern electric power system. The direction of enterprise development. Especially now that the development of large units and ultra-high voltage has put forward higher and higher requirements for the reliable operation of the power system, which is related to the stability of the power grid. With the continuous development and maturity of modern science and technology, the use of infrared state monitoring and diagnostic technology has the characteristics of long-distance, no contact, no sampling, no disassembly, and has the characteristics of accuracy, speed, and intuition, and can monitor and diagnose electrical equipment online in real time. Most of the faults (almost can cover the detection of various faults of all electrical equipment). It has received much attention from domestic and foreign power industries (an advanced condition-based maintenance system widely used in foreign countries in the late 1970s), and has developed rapidly. The application of infrared detection technology is of great significance to improve the reliability and effectiveness of electrical equipment, improve the economic benefits of operation, and reduce maintenance costs. It is a very good method that is widely promoted in the field of predictive maintenance at present, and it can raise the maintenance level and the health level of equipment to a higher level.
Infrared imaging detection technology can be used to conduct non-contact detection of running equipment, photograph the distribution of its temperature field, measure the temperature value of any part, and diagnose various external and internal faults accordingly, with real-time, telemetry, intuitive and quantitative With the advantages of temperature measurement, it is very convenient and effective to detect the operating equipment and live equipment of power plants, substations and transmission lines.
