公开(公告)号：US5377523A

公开(公告)日：1995-01-03

申请号：US914866

申请日：1992-07-16

申请人： Fumio Ohta ,  Nobuo Tanaka ,  Yoshinao Mukasa ,  Akira Gohkura

发明人： Fumio Ohta ,  Nobuo Tanaka ,  Yoshinao Mukasa ,  Akira Gohkura

IPC分类号： G01P15/09 ,  G01P21/00 ,  G01P15/05

CPC分类号： G01P21/00 ,  G01P15/0922

摘要： This invention relates to an acceleration sensor device suitable for self-checking while a vehicle is being driven and a self-checking circuit therefor. An acceleration sensor device for self-checking while driving is comprised of a planar vibrator having a piezoelectric area and a non-piezoelectric area and a plurality of first electrodes provided on an upper face of the piezoelectric area of the planar vibrator. At least one second electrode is provided on an upper face of the non-piezoelectric area of the planar vibrator, and a third electrode is provided on the lower face of the planar vibrator. Inputs to the self-checking circuits provide an output that represents the operating state of the acceleration sensor.

摘要翻译： 本发明涉及一种适用于车辆被驱动时自检的加速度传感器装置及其自检电路。 用于驱动时自检的加速度传感器装置包括具有压电区域和非压电区域的平面振动器和设置在平面振动器的压电区域的上表面上的多个第一电极。 至少一个第二电极设置在平面振动器的非压电区域的上表面上，第三电极设置在平面振动器的下表面上。 自检电路的输入提供表示加速度传感器的运行状态的输出。