公开(公告)号：US4490641A

公开(公告)日：1984-12-25

申请号：US278729

申请日：1981-06-29

申请人： Hiroshi Takeuchi ,  Shigeru Jyo mura ,  Kazuyuki Nagatsuma ,  Mitsutaka Hikita ,  Yukio Ito ,  Sakichi Ashida

发明人： Hiroshi Takeuchi ,  Shigeru Jyo mura ,  Kazuyuki Nagatsuma ,  Mitsutaka Hikita ,  Yukio Ito ,  Sakichi Ashida

IPC分类号： H03H9/13 ,  H03H9/17 ,  H03H9/56 ,  H01L41/08

CPC分类号： H03H9/562

摘要： The piezoelectric resonator of this invention consists of a piezoelectric ceramic plate which is polarized in the direction of thickness over the entire plate, two split electrodes are formed on one main surface of the piezoelectric ceramic plate, and an electrode is formed on the entire main surface opposed to the above main surface on which are formed the split electrodes. When an operating voltage is supplied to the above two split electrodes, the piezoelectric ceramic plate between the two split electrodes and the other electrode undergoes resonance in a thickness dilatational mode with a phase difference of 180.degree..

摘要翻译： 本发明的压电谐振器由在整个板上的厚度方向上极化的压电陶瓷板组成，在压电陶瓷板的一个主表面上形成两个分离电极，并且在整个主表面上形成电极 与形成分割电极的上述主表面相对。 当向上述两个分割电极提供工作电压时，两个分离电极和另一个电极之间的压电陶瓷板在相位差为180度的厚度膨胀模式下经历谐振。