Infrared temperature measurement online self-calibrating equipment and method thereof

Abstract

The invention provides an online automatic adjusting device with infrared temperature measurement and a method thereof. The device is provided with at least one black body arranged in the same shell as an infrared camera and a computer system and at least one reflector for change of the light path. The online automatic adjusting method comprises the following contents: (1) the user sets spacing interval between two adjustments according to the requirement and controls the reflector to rotate through the instruction of the computer according to the given time, therefore, the light path is changed and the light path between the black body and the infrared camera is communicated; (2) by comparing the real-time temperature of the black body with the measured temperature of the infrared camera, the deviation value is work out and the thermal imaging temperature value of the measured object is adjusted according to the deviation value. The invention is provided with the function of online automatic adjustment and is suitable for manufacturing portable equipments in particular. With the built-in black body, the invention is integrated with the function of measurement and adjustment and is suitable for long-term field measurement.

Description

Technical field [0001] The invention belongs to an infrared temperature measurement device and a verification method thereof, and specifically refers to an infrared temperature measurement online self-calibration device and a method thereof. Background technique [0002] The calibration of the infrared temperature measurement system is very important to the measurement accuracy of the infrared system. The calibration process is to correspond the output voltage of the infrared system to the true radiance or radiant temperature of the measured object. The state of the infrared measurement system is related to many factors, such as the aging of infrared devices, the aging of photoelectric conversion equipment, the noise of electronic circuits, and even changes in ambient temperature and humidity will affect the infrared system. If the state of the infrared system has changed, but the system has changed Without timely calibration, the measured infrared radiation brightness and temper...

AI Technical Summary

Problems solved by technology

However, this device requires the measured object and the constant temperature source to be located on the same data acquisition plane, so the packaging of the whole device is poor, and it is more suitable for indoor fixed installation, and it is difficult to make a portable online calibration infrared thermometer

In addition, using the computer to collect the infrared radiation energy signals of the measured object and the constant temperature source at the same time, find the deviation, and perform real-time correction is more suitable for occasions that require very high temperature measurement accuracy, but there are many occasions in practical applications. The accuracy requirements are relatively low, so there is no need to calibrate every measurement. If you still use high-precision devices, it will cause waste of resources and relatively low work efficiency.

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