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红外测温仪采用红外温度传感器实现测量体温的方法,利用GE公司的红外热电堆温度传感器ZTP135实现对温度信号的非接触测量;传感器采集到微弱的电压信号需要放大,采用低失调、低漂移的精密运算放大器OP07实现两级放大;模数转换部分用ADC0804实现;STC89S52单片机作为整个系统的控制中心实现温度的处理与显示。该文从硬件技术和软件方法上详细阐述了该仪器的实现手段。该系统具有自动精确测温的功能,具有智能化的特点。
The infrared thermometer uses the infrared temperature sensor to measure the body temperature. The non-contact measurement of the temperature signal is realized by using the GE thermosensitive thermometer ZTP135. The weak voltage signal collected by the sensor needs to be amplified, and the low offset and low drift Precision op-amp OP07 to achieve two-stage amplification; A / D conversion part of ADC0804 to achieve; STC89S52 microcontroller as the entire system control center to achieve temperature processing and display. This article elaborates the means of realization of this instrument from hardware technique and software method. The system has automatic temperature measurement accuracy, with intelligent features.