非接触式超声波流量计收发电路的设计

Design of the Transceiver Circuit for Non contact Ultrasonic Flowmeter

阐述一种超声波收发电路的设计,针对复合管道流量测量,以中轴变压器在发射电路中代替阻尼电阻,使用限幅桥电路来保护接收电路,对收发电路通过匹配电阻法进行平衡。结果表明,设计的发射电路可以对放电时间进行减小,提升发射电压。

This paper describes the design of an ultrasonic transceiver circuit for composite pipeline flow measurement.A central axis transformer is used in the transmitter circuit instead of a damping resistor,and a limiting bridge circuit is used to protect the receiving circuit.The transceiver circuit is balanced through the matching resistance method.The results indicate that the designed emission circuit can reduce the discharge time and increase the emission voltage.