一种新型超声波流量传感器

Design of New Ultrasonic Flow Sensor

介绍了以AT89C52单片机为核心,以CD4049串并联组合及超声波发射换能器TCT40-10F1构成超声波发射电路,以CX20106A红外集成电路为核心构成超声波接收电路,采用C语言编程的超声波测流量系统。系统由电源、超声波发射装置、超声波接收装置、键盘输入、流量显示、报警装置、通信设备等组成。采用了速差法测流量的原理,从而消除了温度对测量结果的影响。同时采用一发一收双传感器的测量方案,降低了传感器盲区对测量精度的影响,提高了超声波测量的精度和可靠性。

This paper introduced a new ultrasonic flow sensor,which took AT89C52 microcontroller as the core,CD4049 and ultrasonic transmitting transducer,TCT40-10F1,constituted the transmitter circuit,and took CX20106A as the ultrasonic receiver circuit,used C language as the programming languages.The system consisted of power supply,ultrasonic emission devices,ultrasonic sensors,keyboard,flow display,alarm devices,communications equipment and other components.Speed difference method was used to measure the flow,so it can eliminate the effect of temperature on measurements.It used one sending one receiving measurement program,reduced the effect of blind spot on measuring accuracy and increased accuracy reliability.