Infrared temperature measurement technology in the production process, in the product quality control and monitoring, equipment online fault diagnosis and safety protection and energy saving, infrared thermometer
Played an important role. In the past 20 years, the non-contact infrared human body thermometer has been rapidly developed in technology, its performance has been continuously improved, its functions have been continuously enhanced, its variety has been increasing, and its scope of application has been continuously expanded. 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 include portable, in-line and scanning three series, and are available in a variety of options and computer software, each with various models and specifications. In the various types of thermometers of different specifications, the correct choice of the infrared thermometer model is very important for the user. What should be paid attention to when using the infrared thermometer? For the temperature measurement, aim the instrument at the object to be measured. Press the trigger to read the temperature data on the LCD of the instrument to ensure that the ratio of the distance to the spot size and the field of view are arranged.
Note on the use of infrared thermometer:
1. Only measure the surface temperature. The infrared thermometer cannot measure the internal temperature.
2. The wavelength above 5um cannot be measured by quartz glass. The glass has very special reflection and transmission characteristics, and accurate infrared temperature reading is not allowed. However, the temperature can be measured by the infrared window. Infrared thermometers are best not used for temperature measurement (stainless steel, aluminum, etc.) on shiny or polished metal surfaces.
3. Position the hotspot, to find the hot spot, the instrument aims at the target, and then scans the target up and down until the hot spot is determined.
4. Pay attention to environmental conditions: steam, dust, smoke, etc. It blocks the optical system of the instrument and affects accurate temperature measurement.
5. Ambient temperature, if the thermometer is suddenly exposed to an ambient temperature difference of 20 ° C or higher, the instrument is allowed to adjust to the new ambient temperature within 20 minutes.
Infrared thermometers choose the right choice of infrared thermometers can be divided into three aspects:
(1) Performance indicators, such as temperature range, spot size, working wavelength, measurement accuracy, window, display and output, response time, protection accessories, etc.
(2) Environmental and working conditions, such as ambient temperature, window, display and output, protective accessories, etc.;
(3) Other options, such as ease of use, maintenance and calibration performance, and price, also have a certain impact on the choice of thermometer.
Industrial application of infrared thermometer
Electricity: Temperature protection and signal transmission of coal-fired power plants, gas-fired power plants, hydropower stations, nuclear power plants, district heating pipe networks, large power transformers.
Metallurgy: aluminum plant, copper plant, steel mill, etc.
Petrochemical: oil production, oil pipelines, petrochemical plants, oil refineries.
General industry: refrigerator factory, air conditioning plant, refrigerator factory, brewery, pharmaceutical factory, automobile factory.
Temperature component manufacturer: platinum resistance, thermocouple and compensation wire cable, temperature switch, temperature sensor manufacturer.
Transportation: Aircraft maintenance at the airport, maintenance of large-scale transportation power systems, and ocean shipping as a measure of in-service maintenance.
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