Design of Signal Acquisition Circuit of NAMUR Speed Sensor
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摘要: 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。Abstract: 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.
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