公开(公告)号：US06457358B1

公开(公告)日：2002-10-01

申请号：US09659624

申请日：2000-09-11

申请人： Jiashi Yang

发明人： Jiashi Yang

IPC分类号： G01P904

CPC分类号： G01C19/5642 ,  G01C19/5607

摘要： Disclosed is a piezoelectric gyroscope which presents as a generally elongated tubular shape having inner and outer radially polarized annular region defining surfaces, with an inner electrode on the inner surface, and four outer electrodes present on the outer surface. The four electrodes present on the outer surface are oriented such that each is in a separate quadrant, (as the piezoelectric gyroscope generally longitudinally elongated essentially tubular structure is viewed in cross-section), and ideally at substantially ninety degree intervals on the outer surface. In use the piezoelectric gyroscope system is caused to rotate about an essentially centrally located longitudinally oriented axis while a flex inducing driving voltage is applied across two of the four electrodes, (driving) electrodes, which are oriented at substantially 180 degrees with respect to one another, while an output voltage is sensed across the other two (sensing), electrodes. Also disclosed are a tuning-fork shaped variations.

摘要翻译： 公开了一种压电陀螺仪，其呈现为具有限定表面的内部和外部径向偏振的环形区域的大体上细长的管状形状，内表面上具有内部电极，以及存在于外部表面上的四个外部电极。 存在于外表面上的四个电极被定向成使得每个位于单独的象限中（因为压电陀螺仪在大致纵向上伸长的基本上是管状结构的横截面），并且理想地在外表面上以基本上九十度的间隔。 在使用中，使压电陀螺仪系统围绕基本上位于中心的纵向定向的轴线旋转，同时将柔性感应驱动电压施加在四个电极中的两个（驱动）电极上，所述四个电极相对于彼此大致180度取向 ，而在另外两个（感测）电极上检测输出电压。 还公开了音叉形变化。

公开(公告)号：US06777857B1

公开(公告)日：2004-08-17

申请号：US10160638

申请日：2002-06-03

申请人： Jiashi Yang

发明人： Jiashi Yang

IPC分类号： H01L4108

CPC分类号： G01C19/5642

摘要： Disclosed are coriolis force driven piezoelectric gyroscope systems which each comprise two substantially orthogonally oriented elements projecting from a mass. Each substantially orthogonally oriented element has a pair of electrodes present thereupon, wherein the electrodes in a pair thereof are oriented substantially parallel to one another. In use rotation about an axis oriented perpendicular to a plane formed by two substantially orthogonally oriented elements while an extension inducing driving voltage is applied across a pair of electrodes on one thereof. An output voltage, which is related to the rotation rate, is sensed across the pair of electrodes on the other substantially orthogonally oriented element.

摘要翻译： 公开了科里奥利力驱动的压电陀螺仪系统，每个系统包括两个从质量伸出的基本上正交取向的元件。 每个基本正交取向的元件具有一对电极，其中一对电极基本上彼此平行地取向。 在垂直于由两个基本上正交取向的元件形成的平面定向的轴上使用旋转，同时在其上的一对电极上施加延伸感应驱动电压。 在另一个基本上正交取向的元件上的一对电极上感测与转速有关的输出电压。

公开(公告)号：US5815054A

公开(公告)日：1998-09-29

申请号：US863404

申请日：1997-05-27

申请人： Bruce Vojak ,  Jiashi Yang ,  Jin Huang ,  John Mattson

发明人： Bruce Vojak ,  Jiashi Yang ,  Jin Huang ,  John Mattson

IPC分类号： H03H9/19 ,  H03H9/02 ,  H03H9/205 ,  H03H9/56

CPC分类号： H03H9/02543

摘要： A high frequency acoustic wave piezoelectric device (10) having parallel etched channels cut into a surface of a piezoelectric substrate so as to form micromachined ridges (20). Top electrodes (30) are located on tops (26) of the ridges (20) and bottom electrodes (32) are located on bottoms of the channels in spacings (22) between ridges (20). The top and bottom electrodes (30, 32) are offset from each other and substantially non-opposing. The electrodes (30, 32) generate a sufficient vertical electrical field (38) when driven to cause the ridges (20) to resonate. A height (28) of the ridges (20) define the operating frequency. The ridges (20) can be made small enough to produce frequencies well over 100 MHz in a fundamental bulk acoustic wave mode.

摘要翻译： 具有平行蚀刻通道的高频声波压电器件（10）切割成压电基片的表面以形成微加工脊（20）。 顶部电极（30）位于脊部（20）的顶部（26）上，底部电极（32）位于脊部（20）之间的间隔（22）的通道的底部。 顶部和底部电极（30,32）彼此偏移并且基本上不相对。 当被驱动以使脊（20）谐振时，电极（30,32）产生足够的垂直电场（38）。 脊（20）的高度（28）限定工作频率。 脊（20）可以制成足够小以在基本体声波模式下产生超过100MHz的频率。

公开(公告)号：US6140748A

公开(公告)日：2000-10-31

申请号：US271791

申请日：1999-03-18

申请人： Jiashi Yang

发明人： Jiashi Yang

IPC分类号： G01C19/5607 ,  G01C19/5642 ,  G01P9/04 ,  G01P15/09 ,  H01L41/08

CPC分类号： G01C19/5607 ,  G01C19/5642

摘要： Disclosed is a high voltage sensitivity coriolis force driven piezoelectric-gyroscope-transformer system, and method of its use. The system is of a preferably generally elongated rectangular solid shape and provides two stacked regions of oppositely polarized direction driving side piezoelectric material on a first longitudinally disposed side thereof, and two adjacent regions of longitudinally oppositely polarized direction sensing side piezoelectric material on a second longitudinally disposed side thereof. In use the system is caused to rotate about a essentially centrally located longitudinally oriented axis therethrough from the first longitudinally disposed side to the second, while a flex effecting driving voltage is applied across the two stacked regions of said oppositely polarization direction driving side piezoelectric material on the first longitudinally disposed side and an output voltage is sensed at the end of the second longitudinally disposed, sensing side. Also described are tuning-fork shaped piezoelectric-gyroscope-transformer systems made from present invention combination piezoelectric-gyroscope-transformer system(s).

摘要翻译： 公开了一种高电压灵敏度科里奥利力驱动的压电陀螺变压器系统及其使用方法。 该系统优选地是大致细长的矩形实心形状，并且在其第一纵向设置侧上提供两个相反极化方向驱动侧压电材料的堆叠区域，以及在第二纵向设置的两个相对偏振方向感测侧压电材料的两个相邻区域 侧。 在使用中，使得系统围绕基本上位于中心的纵向取向的轴线从第一纵向设置侧旋转到第二纵向轴线，同时在所述相对偏振方向驱动侧压电材料的两个堆叠区域上施加弯曲效应驱动电压， 在第二纵向布置的检测侧的端部处感测第一纵向布置的侧面和输出电压。 还描述了由本发明组合压电 - 陀螺 - 变压器系统制成的音叉形压电 - 陀螺 - 变压器系统。