对悬链式超声功率计测量误差的理论探讨

Theoretical study on the measurement error of ultrasonic power meter

对在使用悬链式超声功率计测量时由于声源指向性所产生的误差进行了理论探讨 ,并对几个实例进行了数值计算 ,给出了相应的修正值 .

The influence of transducer directivity on the ultrasonic power measurement is studied theoretically, and the correction data calculated by numerical method are presented.