A black body temperature control method

Abstract

The invention discloses a blackbody temperature control method, comprising the following steps: power on the system, and perform initialization configuration; the main control module sets the fluid agitator control mode according to the temperature difference interval of the temperature difference ΔT1 between the target temperature T0 and the ambient temperature T01 ; The main control module directly sets the heating component control mode according to different temperature difference ranges or further judges the temperature range of the temperature difference between the two according to the target temperature T0 and the current temperature T02, and sets the heating component control mode according to the temperature range . The rationalization of parameters is used to adapt to the difference between the heating process and the cooling process of the black body, that is, asymmetry, so that the dynamic performance and steady-state performance of the black body temperature control process can reach a good level, which can improve the speed, accuracy and stability of the black body temperature control , reduce the overshoot, shorten the warm-up time of the whole system, and the calibration results of the corresponding infrared equipment are more stable, accurate and fast.

Description

technical field [0001] The invention belongs to the technical field of control methods, and relates to a black body temperature control method. Background technique [0002] In the infrared temperature measurement system, the primary task is to calibrate it. The black body provides a standard temperature for the calibration of the infrared temperature measurement system. The accuracy and stability of the black body temperature play a key role in the calibration process. [0003] In the heating-only temperature control system, heating components are used for heating during the heating process, while natural cooling is used for the cooling process. When the conventional PID method is used to control the blackbody temperature, the heating and cooling processes present a significant asymmetry, which is not very obvious. ideal. In order to achieve the target temperature value with faster speed, higher accuracy and higher stability with an ideal temperature control process curve,...

AI Technical Summary

Problems solved by technology

[0003] In the single-heating temperature control system, the heating process is heated by heating components, while the cooling process adopts natural cooling. When the conventional PID method is used to control the black body temperature, the heating and cooling process presents a significant asymmetry. ideal

Images