Infrared thermal imaging temperature measuring machine core and thermal imager

Abstract

The invention provides an infrared thermal imaging temperature measurement machine core and a thermal imager, the infrared thermal imaging temperature measurement machine core comprises a shell, a lens, a detector, a processor and a separation blade assembly, and the shell is provided with an accommodating cavity and an opening; the lens is arranged in the accommodating cavity and is positioned at the opening; and a blocking sheet assembly, a lens, a detector and a processor are sequentially arranged in the direction from the opening of the shell to the interior of the containing cavity. A calibration lug of the blocking sheet assembly is located in a view field area of the lens to obtain a real-time lug thermal radiation value F1, and the processor obtains a thermal radiation compensation value FB according to the real-time lug thermal radiation value F1 and an actual lug thermal radiation value F4 and corrects a detection target thermal radiation value F2 of the target object through the thermal radiation compensation value FB. According to the invention, the problem that the temperature measurement accuracy of the thermal imager cannot be ensured since the thermal imaging machine core in the prior art generates deviation by calculating the actual target temperature value of the target object through the corresponding relation between the thermal radiation value and the temperature value established by the blocking sheet and combining the target thermal radiation value is solved.

Description

technical field [0001] The invention relates to the technical field of infrared thermal imaging, in particular to an infrared thermal imaging temperature measuring core and a thermal imager. Background technique [0002] Thermal imagers are widely used in social life for human body temperature measurement, biological temperature measurement and industrial temperature measurement through a large-scale, non-contact temperature measurement method. [0003] In the direction from the target object to the thermal imager, the thermal imaging core of the thermal imager sequentially includes a lens, a baffle, a temperature sensor, a detector, and a processor. The baffle is closed so that the baffle is located in the field of view, and the detector acquires The shutter heat radiation value of the shutter, the temperature sensor obtains the shutter temperature value of the shutter, the processor obtains the above-mentioned shutter thermal radiation value and the shutter temperature val...

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to provide an infrared thermal imaging temperature measuring core and a thermal imager, to solve the corresponding relationship between the thermal radiation value and the temperature value established by the thermal imaging core in the prior art through the baffle and combine the The target thermal radiation value is used to calculate the actual target temperature value of the target object, resulting in a deviation, which cannot ensure the accuracy of the temperature measurement of the thermal imager

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