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基于辐射测温法的基本原理，设计出了以８７５１单片机为核心的光电比色测温系统．该系统用被测物的亮温替代实际温度，并用查表程序由单片机自动校准误差，在５００℃～１０００℃范围内，相对误差为±１％．
Based on the basic principle of radiation thermometry, a photoelectric colorimetric temperature measurement system with 8751 single-chip microcomputer as its core was designed. The system uses the measured temperature of the light instead of the actual temperature, and use the look-up table to automatically calibrate the error by the microcontroller in the range of 500 ℃ ~ 1000 ℃, the relative error of ± 1%.