介绍超声水表时间差测量法的原理,然后根据其原理及流体特性分析了超声水表流量传感器的参数(主要是管段直径D、超声波传播方向与流体轴线间的夹角φ)对超声水表计量性能的影响,从而得到了单声道超声水表的流量传感器参数设计的三个简单、准确、有效的设计准则,可大大缩短超声水表设计周期,为今后更好地研究超声水表提供了依据。 The principle of time difference measurement of ultrasonic water meter is introduced. Then the parameters of ultrasonic water flow meter (mainly the diameter of pipe segment D, the direction of ultrasonic wave propagation and the angle of fluid axis φ) are analyzed according to its principle and fluid characteristics. , So that three simple, accurate and effective design criteria of the flow sensor parameters of the mono ultrasonic water meter can be obtained, which can greatly shorten the design cycle of the ultrasonic water meter and provide a basis for better study of the ultrasonic water meter in the future.