专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5336960A Gyroscope using circular rod type piezoelectric vibrator 失效
标题翻译：陀螺仪采用圆杆式压电振动器
公开(公告)号：US5336960A
公开(公告)日：1994-08-09
申请号：US53963
申请日：1993-04-27
申请人： Hiroshi Shimizu , Tetsuo Yoshida , Chikara Mashiko
发明人： Hiroshi Shimizu , Tetsuo Yoshida , Chikara Mashiko
IPC分类号： G01C19/5642 , H01L41/08
CPC分类号： G01C19/5642
摘要： In a piezoelectric gyroscope system wherein a vibrating body is vibrated in a specific direction by a piezoelectric actuator and is subjected to another vibration in a direction perpendicular to the specific direction due to the Coriolis' force upon being subjected to a rotation of a rotational speed, the perpendicular vibration being detected as an electric signal representative of the rotational speed by a piezoelectric transducer, the vibrating body is made of a circular rod of a piezoelectric material having a plurality of elongated electrodes on the outer surface of the rod, in order to resolve difficulty for mounting piezoelectric transducers onto the vibrating body. A driving signal is applied to predetermined ones of the electrodes to vibrate the rod in a particular diametric direction and an output signal is detected from specific ones of the electrodes according to the vibration due to the Coriolis' force. When an even number of electrodes are provided, those electrodes are formed at equiangularly spaced positions on the outer surface of the rod. When an odd number of electrodes are provided, those electrodes are formed at equiangularly spaced positions within an angular region of (360 angular degrees.times.2/3) on the outer surface of the rod.
摘要翻译：在压电陀螺仪系统中，振动体通过压电致动器在特定方向上振动，并且由于受到旋转速度旋转时的科里奥利力而在与特定方向垂直的方向上受到另一振动，通过压电换能器将垂直振动检测为表示转速的电信号，该振动体由在杆的外表面上具有多个细长电极的压电材料的圆形棒制成，以便分解将压电换能器安装在振动体上的困难。将驱动信号施加到预定的电极中以使杆在特定的直径方向上振动，并且根据由科里奥利力产生的振动，从特定的电极检测输出信号。当设置偶数个电极时，这些电极在杆的外表面上以等角间隔的位置形成。当提供奇数个电极时，这些电极在杆的外表面上的（360°角度×2/3）的角度区域内以等角间隔的位置形成。

IPRDB

热门服务

关于我们

友情链接

联系方式