公开(公告)号：WO2008016599A3

公开(公告)日：2008-06-19

申请号：PCT/US2007017102

申请日：2007-07-31

Applicant: CTS CORP

Inventor： STRANFORD GERALD ,  KNECHT THOMAS

IPC: B06B1/06

CPC classification number: B06B1/0662 ,  G01V1/186 ,  H01L41/253

Abstract: A piezoelectric element (20) suitable for use as a sensor element in a hydrophone. In a preferred embodiment, the sensor element comprises a ceramic lead zirconate titanate substrate (22) defining opposed ends and including at least first and second conductive strip electrodes (24, 25) on opposed top and bottom faces thereof. In accordance with the invention, at least one of the strip electrodes, and preferably at least the end of one of the strip electrodes disposed adjacent one of the opposed ends of the substrate, includes one or more spaced-apart laser cuts (55, 60) created during the manufacture of the sensor element for presetting the capacitance of the sensor element.

Abstract translation: 一种适用于水听器中的传感器元件的压电元件（20）。 在优选实施例中，传感器元件包括限定相对端并且在其相对的顶表面和底面上至少包括第一和第二导电带状电极（24,25）的陶瓷锆钛酸铅基板（22）。 根据本发明，至少一个带状电极，并且优选地，至少一个条形电极的一个设置在基板相对的一个相对端中的一端，包括一个或多个间隔开的激光切口（55,60 ）在传感器元件的制造期间创建，用于预设传感器元件的电容。