The Temperature Calibration Method of Non-contact Infrared Thermometer

Abstract

The present invention discloses a temperature calibration method of a non-contact infrared thermodetector. The temperature calibration method comprises the following steps of arranging the non-contactinfrared thermodetector in a black body heating furnace, wherein the non-contact infrared thermodetector establishes the communication connection with a computer; using the computer to set the targettemperature of the black body heating furnace as T0, and heating or cooling the black body heating furnace towards the target temperature; recording a target voltage value V0 at this time, and generating a coordinate point (V0, T0); F setting the target temperatures of the black body heating furnace as T1, T2, T3...Tn, correspondingly obtaining the target voltage values as V1, V2, V3...Vn, generating the coordinate points (V1,T1), (V2, T2), (V3, T3...(Vn, Tn), and using the computer to combine the coordinate point (V0, T0) to fit a temperature-voltage curve of which the x axis is V and the yaxis is T; G placing the non-contact infrared thermodetector in an actual production working environment to use, using the computer to real-timely obtain the voltage value of the non-contact infraredthermodetector, and inverting a measurement temperature value via the temperature-voltage curve.

Description

technical field [0001] The invention belongs to the field of infrared temperature measurement, in particular to a temperature calibration method for a non-contact infrared thermometer. Background technique [0002] Non-contact infrared thermometers have been widely used in industrial sites for point, line, and surface temperature detection. Infrared imaging detection technology is used for non-contact detection of operating industrial equipment, and the distribution of its temperature field is photographed, and various parts are measured. The temperature value can be used to diagnose various working conditions and internal faults, which has the advantages of real-time, intuitive and fixed measurement. In the process of producing infrared thermometers, due to the existence of production errors, each infrared thermometer will have different product parameters, so the infrared thermometer will calibrate its product parameters when it leaves the factory, but this process and its...

AI Technical Summary

Problems solved by technology

In the process of producing infrared thermometers, due to the existence of production errors, each infrared thermometer will have different product parameters, so the infrared thermometer will calibrate its product parameters when it leaves the factory, but this process and its cost Manpower, and human interference errors will also occur during the calibration process, so it is difficult to ensure that there will be no measurement errors in the actual use of the non-contact infrared thermometer

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