公开(公告)号：US4662751A

公开(公告)日：1987-05-05

申请号：US779744

申请日：1985-09-24

申请人： Willis C. Goss ,  Bruce R. Youmans ,  Noble M. Nerheim ,  Randall K. Bartman

发明人： Willis C. Goss ,  Bruce R. Youmans ,  Noble M. Nerheim ,  Randall K. Bartman

IPC分类号： G01C19/72 ,  G01B9/02

CPC分类号： G01C19/726

摘要： An improved optical gyroscope is provided, of the type that passes two light components in opposite directions through an optic fiber coil, and which adds a small variable frequency to one of the light components to cancel the phase shift due to rotation of the coil. The amount of coil rotation from an initial orientation, is accurately determined by combining the two light components, one of which has a slightly increased frequency, to develop beats that each represent a predetermined angle of rotation. The direction of rotation is obtained by combining the two light components on a photodetector, intermittently phase shifting a single light component by 90.degree., and comparing the direction of change of photodetector output (+ or -) caused by the 90.degree. shift, with the slope (+ or -) of the photodetector output at about the same time, when there is a 90.degree. shift.

摘要翻译： 提供了一种改进的光学陀螺仪，其类型是通过光纤线圈在相反方向上通过两个光分量，并且将一个小的可变频率添加到一个光分量以消除由于线圈的旋转引起的相移。 通过组合两个光分量（其中之一具有稍微增加的频率）来精确地确定来自初始取向的线圈旋转量，以产生每个表示预定旋转角度的节拍。 通过将光电检测器上的两个光分量组合，将单个光分量间歇相移90°，并将由90°偏移引起的光检测器输出（+或 - ）的变化方向与 大约在同一时间，当有90°偏移时，光电检测器输出的斜率（+或 - ）。

公开(公告)号：US5894090A

公开(公告)日：1999-04-13

申请号：US657685

申请日：1996-05-31

申请人： Tony K. Tang ,  William J. Kaiser ,  Randall K. Bartman ,  Jaroslava Z. Wilcox ,  Roman C. Gutierrez ,  Robert J. Calvet

发明人： Tony K. Tang ,  William J. Kaiser ,  Randall K. Bartman ,  Jaroslava Z. Wilcox ,  Roman C. Gutierrez ,  Robert J. Calvet

IPC分类号： G01C19/5719 ,  G01P15/125 ,  G01P15/14 ,  G01P15/18 ,  G01C19/00 ,  G01P9/00

CPC分类号： G01C19/5719 ,  G01P15/125 ,  G01P15/14 ,  G01P15/18 ,  G01P2015/084 ,  G01P2015/0842

摘要： When embodied in a microgyroscope, the invention is comprised of a silicon, four-leaf clover structure with a post attached to the center. The whole structure is suspended by four silicon cantilevers or springs. The device is electrostatically actuated and capacitively detects Coriolis induced motions of the leaves of the leaf clover structure. In the case where the post is not symmetric with the plane of the clover leaves, the device can is usable as an accelerometer. If the post is provided in the shape of a dumb bell or an asymmetric post, the center of gravity is moved out of the plane of clover leaf structure and a hybrid device is provided. When the clover leaf structure is used without a center mass, it performs as a high Q resonator usable as a sensor of any physical phenomena which can be coupled to the resonant performance.

摘要翻译： 当体现在微型显微镜中时，本发明由具有附接到中心的柱的硅四叶三叶草结构组成。 整个结构由四个硅悬臂或弹簧悬挂。 该装置被静电驱动并电容地检测科里奥利诱导叶三叶草结构叶片的运动。 在柱子与三叶草叶的平面不对称的情况下，装置可以用作加速度计。 如果柱子设置为哑铃或不对称柱的形状，则将重心移出三叶草叶结构的平面，并提供混合装置。 当没有中心质量的情况下使用三叶草叶结构时，它可以作为高Q谐振器执行，作为可以耦合到谐振性能的任何物理现象的传感器。