The Effect of Boundary Condition on the Operating Characteristics of Bender Transducer

The physical model of a bender transducer with an edge annular groove, which defines the boundary condition in some degree, is built by finite element software. The acoustic properties such as resonant frequency and transmitting voltage response are simulated with different groove parameters. And the extreme operating depth capability of the transducer in water is studied by analyzing the maximum value of von mises stress. A bender transducer prototype is made according to the optimized structural parameters. The test results measured in an open lake are basically consistent with the simulation data. Low frequency and non-directional emission of the bender transducer are realized.