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介绍用红外技术研制成功的HDZ-笼型异步电动机端部温度测量仪。测量范围0～300℃,测量误差为满刻度的±1％。仪器采用热释电型红外探测器作为温度传感器;采用电子音片斩波器,将转子端部发射的红外辐射通量调制成交流信号,这样的交流辐射通量被红外探测器接受转换成电压信号。经过放大、滤波、检波,解调为直流信号,再经放大和线性化处理与环境温度和高温补偿信号相加,由A/D转换成数字量,数字显示电机转子端部的温度。
Describes the HDZ-cage induction motor end temperature measuring instrument developed with infrared technology. Measuring range 0 ~ 300 ℃, measurement error of ± 1% of full scale. The instrument uses pyroelectric infrared detector as a temperature sensor; the use of electronic sound film chopper, the rotor radiation emitted by the end of the infrared radiation modulation AC signal, the AC radiation flux is converted by the infrared detector into voltage signal. After amplification, filtering, detection, demodulation for the DC signal, and then amplified and linearized and ambient temperature and high temperature compensation signal is added, converted by A / D digital, digital display of the rotor rotor temperature.