公开(公告)号：US5549110A

公开(公告)日：1996-08-27

申请号：US206073

申请日：1994-03-04

申请人： Werner Krauss ,  Jan Zwingenberger ,  Peter Jaggy

发明人： Werner Krauss ,  Jan Zwingenberger ,  Peter Jaggy

IPC分类号： A61B17/22 ,  A61B17/225 ,  A61B18/00 ,  B06B1/02 ,  H04R17/08 ,  A61B8/00

CPC分类号： B06B1/0215 ,  B06B2201/20 ,  B06B2201/55 ,  B06B2201/76 ,  H04R17/08

摘要： A device, which is especially made for the generation of shockwaves to detect inner-body objects, is equipped with piezo-ceramic transducer elements which act as an electro-acoustical transducer which can be driven by a high-voltage source with high-voltage impulses to generate shock waves or sound impulses through directed deformations and length changes of the transducer elements is dependent on the given polarization of the transducer elements and the polarity of the high-voltage impulses. The sound energy emitted by the device may then be especially high if the transducer elements are excited and biased with a bias potential before the appearance of a high-voltage impulse and the polarity of the bias potential is opposite to that of the high-voltage impulse.

摘要翻译： 特别用于产生用于检测内部物体的冲击波的装置配备有压电陶瓷换能器元件，其作为可以由具有高压脉冲的高压源驱动的电声换能器 通过定向变形产生冲击波或声音脉冲，并且换能器元件的长度变化取决于换能器元件的给定极化和高压脉冲的极性。 如果换能器元件在出现高压脉冲之前被激发并偏置偏置电位，并且偏置电位的极性与高电压脉冲的极性相反，则器件发出的声能可能特别高 。