公开(公告)号：US5349261A

公开(公告)日：1994-09-20

申请号：US36723

申请日：1993-03-25

申请人： Katsumi Fujimoto ,  Kazuhiro Yoshitani ,  Akira Mori ,  Takeshi Nakamura

发明人： Katsumi Fujimoto ,  Kazuhiro Yoshitani ,  Akira Mori ,  Takeshi Nakamura

IPC分类号： G01C19/5663 ,  H01L41/08

CPC分类号： G01C19/5663

摘要： A vibrator 10 includes a regular triangular prism-shaped vibrating body 12. On centers of three side faces of the vibrating body 12, piezoelectric elements 14a, 14b and 14c are formed, respectively. Two piezoelectric elements and 14b are used for driving and detecting. The other piezoelectric element 14c is used for feedback. By trimming a ledge-line portion 12a of the vibrating body 12, a resonance frequency on driving side is controlled. By trimming ledge-line portions 12b and 12c of the vibrating body 12, two resonance frequencies on detecting side are controlled.

摘要翻译： 振动器10包括正三角形的棱柱形振动体12.在振动体12的三个侧面的中心分别形成压电元件14a，14b和14c。 两个压电元件和14b用于驱动和检测。 另一个压电元件14c用于反馈。 通过修整振动体12的凸缘部分12a，控制驱动侧的共振频率。 通过调整振动体12的凸缘部分12b和12c，控制检测侧的两个谐振频率。

公开(公告)号：US5479822A

公开(公告)日：1996-01-02

申请号：US135332

申请日：1993-10-13

申请人： Shozo Motohashi ,  Katsumi Fujimoto ,  Hiroshi Nishiyama ,  Yoshiaki Heinouchi ,  Kazuhiro Yoshitani ,  Yukio Sakashita

发明人： Shozo Motohashi ,  Katsumi Fujimoto ,  Hiroshi Nishiyama ,  Yoshiaki Heinouchi ,  Kazuhiro Yoshitani ,  Yukio Sakashita

IPC分类号： G01C19/56 ,  G01C19/5663 ,  G01P15/08 ,  G01P1/02

CPC分类号： G01C19/5663

摘要： A vibratory gyroscope 10 includes a vibrator 12. The vibrator 12 includes a regular triangular prism-shaped vibrating body 14. On centers of the three side faces of the vibrating body 14, piezoelectric elements 16a, 16b and 16c are formed respectively. The vibrating body 14 is supported above a base plate 20 by supporting members. The vibrating body 14 vibrates vertically with no rotation. A case 22 is secured so as to cover the vibrating body 14. An upper portion 26 of the case 22 is so formed that its inner size in the direction of the width is shorter than a half-wave length of a sound wave of a vibrating frequency of the vibrating body 14.

摘要翻译： 振动陀螺仪10包括振动器12.振动器12包括规则的三角形棱柱形振动体14.在振动体14的三个侧面的中心，形成压电元件16a，16b和16c。 振动体14通过支撑构件支撑在基板20的上方。 振动体14无旋转地垂直振动。 固定壳体22以覆盖振动体14.壳体22的上部26被形成为使得其在宽度方向上的内部尺寸比振动的声波的半波长短 振动体14的频率。