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本专利介绍一种在700～1800℃范围对热电元件进行定标的方法。抛物面反射镜(3)使来自调制光源(1)的光变成一束平行光束,透镜系统(4)将该平行光束聚焦在热电元件(7)的尖头(6)上,然后,高温计(8,9)通过透镜系统(10)测量热电元件尖头的比辐射率和温度。数据处理系统(11)将测得的辐射率及温度同热电元件的测量温度进行比较。通常的定标温度范围约为700～1800℃,而定标尖头温度可以达到大约2800℃。这种定标方法可以用于对
This patent describes a method for calibrating thermoelectric elements in the 700 to 1800 ° C range. A parabolic mirror (3) converts the light from the modulating light source (1) into a parallel beam of light which is focused by the lens system (4) onto the tip (6) of the pyroelectric element (7) (8,9) The emissivity and temperature of the tip of the thermoelectric element are measured by the lens system (10). The data processing system (11) compares the measured emissivity and temperature with the measured temperature of the thermoelectric element. The typical calibration temperature range is about 700 ~ 1800 ℃, while the calibration tip temperature can reach about 2800 ℃. This calibration method can be used to correct