水听器式便携超声参数测量系统的研制

目的：开发了一套测量声输出参数的系统，为进一步研制适用于军事计量巡检工作的便携式仪器奠定基础。方法：采用水听器作为换能器，采集超声信号存空间声场焦平面上一点的声压波形。通过对声压波形的参数进行数值运算，得到所关心的超声声输山参数。结果：能够在误差允许的范围内测量出主要的声输出参数。结论：该方法切实可行，得到的数据可重复性好。

A Portable Acoustic Output Parameter Measurement System Using Hydrophone for the Medical Ultrasonic Diagnostic Equipment

Objective:In order to suit the need of military itinerant inspection,an acoustic output measurement system,which is the basement for the manufacture of a portable instrument,is developped.Method:A hydrophone is used as energy converting equipment to collect waves of acoustic pressure in the field of ultrasonic.Though some calculations,a series of acoustic output parameters are achieved.Results:The main acoustic output parameters can be measured in the range of permitted errors.Conclusions:This method is feasible and data can be well repeated.