NAMUR型速度传感器信号采集电路的设计

摘要

In order to obtain accurate signal of NAMUR speed sensor, the paper designed a kind of signal acquisition circuit based on PIC18F2480 single-chip microcomputer, and gave software design process of the circuit. The signal acquisition circuit can collect frequency signal with 0~600 Hz, and can on-line monitor conditions of break, short circuit or normal running of sensor.%为了准确获取NAMUR型速度传感器信号,设计了一种基于PIC18F2480单片机的信号采集电路,并给出了该电路的软件设计流程.该信号采集电路可采集到0～600 Hz的频率信号,并可在线监测传感器断线、短路或正常工作等状态.