Thermal infrared temperature measurement system suitable for real temperature measurement of object

Abstract

The invention provides a thermal infrared temperature measurement system suitable for real temperature measurement of an object, and belongs to the field of control science. Comprising a smart phone type thermal imager, a first optical filter, a second optical filter and a control processing device. Two narrow-band optical filters are added in front of the lens of the mobile phone type thermal imaging system, the optical filters are fixed in front of the infrared lens of the mobile phone type thermal imaging system by changing the working wave band of the thermal imaging system twice, the purpose of cutting out an optical path is achieved by rotating the optical filters, and the effect of variable-spectrum temperature measurement is further achieved. The device has the advantages of being high in temperature measurement speed, large in temperature measurement area, high in resolution ratio and non-contact. Compared with large-scale infrared measurement equipment, the mobile phone type thermal imager is low in cost, portable and more flexible in application scene. According to the invention, the variable spectrum method is adopted to measure the temperature, so that the real temperature of the object can be effectively measured under the condition that the emissivity of the object is unknown, and the real temperature of the object and the material emissivity of the measured object can be obtained according to the measurement result.

Description

technical field [0001] The invention belongs to the field of control science, and in particular relates to a thermal infrared temperature measurement system suitable for measuring the real temperature of objects. Background technique [0002] Infrared thermal imaging temperature measurement has the advantages of fast temperature measurement speed, large area, high resolution and non-contact. , Quality screening and fault diagnosis of semiconductor components and integrated circuits, fault diagnosis of petrochemical equipment, fire detection, non-destructive testing of internal defects of materials, and heat transfer research have been widely used. Especially in 2020, the COVID-19 virus has brought infrared thermal imaging technology into people's field of vision again, and its excellent group temperature measurement ability has also played a vital role in ensuring epidemic prevention and control measures. [0003] Despite the above advantages, the implementation platform of...

AI Technical Summary

Problems solved by technology

The disadvantages of the dual-band thermal imager are: 1. The price is high; 2. The volume is large, and the application scene is not flexible enough due to the large size; 3. The dual-band thermal imager can only be used for gray body measurement

The disadvantages of the multi-band long radiometer are: 1. It can only be used to measure high-temperature objects; 2. In a certain wavelength range, increasing the wave number will lead to an increase in the uncertainty of the fitting temperature, resulting in an increase in the temperature measurement error

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