Black body calibration device and method

Abstract

The invention discloses a black body calibration device and method. The device comprises a temperature measuring box, a black body and a temperature measuring instrument. Temperature control equipmentand a movement mechanism are arranged in the temperature measuring box. The black body is arranged in the temperature measuring box. The temperature measuring instrument comprises a temperature measuring probe located in the temperature measuring box, and a testing channel communicated with the outside is formed in the temperature measuring box. The temperature control equipment is used for controlling the interior of the temperature measuring box to be at a set temperature, and the movement mechanism is used for driving the temperature measuring probe to rotate. During calibration, the temperature measuring probe points to the black body. During detection, the temperature measuring probe points to an external to-be-detected object through the test channel. According to the invention, theinfluence of outdoor climatic conditions during temperature measurement calibration is avoided, and the accuracy of temperature measurement calibration is greatly improved. Meanwhile, the rotation ofthe temperature measurement probe can avoid inaccurate or failed temperature measurement calibration caused by the fact that the black body is shielded by the to-be-detected object, and reduces the requirements for the position and posture of the to-be-detected object.

Description

technical field [0001] The invention relates to the technical field of temperature calibration, in particular to a blackbody calibration device and method. Background technique [0002] The application of temperature measuring instruments is becoming more and more common, especially during the epidemic, the application of temperature measurement is more extensive. A large part of existing temperature measuring instruments use black bodies for temperature calibration. In the existing temperature calibration scheme, there is a certain distance between the black body and the temperature measuring probe. This method has the following problems: [0003] 1. The black body is located outdoors, which is greatly affected by outdoor weather conditions, resulting in poor accuracy of actual temperature measurement; [0004] 2. The temperature measurement probe needs to detect the temperature of the black body and the object to be measured at the same time. It may be that the object to...

AI Technical Summary

Problems solved by technology

[0003] 1. The black body is located outdoors, which is greatly affected by outdoor weather conditions, resulting in poor accuracy of actual temperature measurement;

[0004] 2. The temperature measurement probe needs to detect the temperature of the black body and the object to be measured at the same time. It may be that the object to be measured blocks the black body and does not play the role of calibration of the black body, resulting in inaccurate temperature measurement results

Images