超声测距换能器振动系统的理论设计与测试

Design and Test of Transducer Vibrating System for Distance Measurement

讨论了采用复合压电振子的测距换能器振动系统的设计方法,推导出在自由边界条件下复合压电振子的频率方程.找出某一特定频率下测距换能器的几何参数,并进行相同尺寸下的测距换能器实验验证.最后得到设计测距换能器振动系统的几何参数.

The design principle of transducer vibrating system for distance measurement with composite piezoelectric vibration has been discussed.The frequency equation of composite piezoelectric vibration under free boundary condition has been given,and the geometrical parameter to design transducer for distance measurement under certain frequency has been find out.Experimental verification of the transducer test with the same size has been done.In the end the geometrical parameter of transducer vibrating system for distance measurement is obtained.