公开(公告)号：US06647785B2

公开(公告)日：2003-11-18

申请号：US09916997

申请日：2001-07-27

申请人： Robert E. Stewart ,  John T. Douglass ,  Stanley F. Wyse

发明人： Robert E. Stewart ,  John T. Douglass ,  Stanley F. Wyse

IPC分类号： G01C1900

CPC分类号： G01C19/5691

摘要： A rotation sensing system includes a rotation sensor that produces a signal in response to an input rotation about a sensing axis. A servo system is arranged to rotate the rotation sensor at an angle about the sensing axis to null the signal from the rotation sensor such that the rotation sensor is substantially inertially stable. The rotation sensing system is mounted on a resolver arranged to measure the angle through which the servo system has rotated the rotation sensor.

摘要翻译： 旋转感测系统包括旋转传感器，其响应于关于感测轴的输入旋转而产生信号。 伺服系统被布置成以围绕感测轴线的角度旋转旋转传感器，以使来自旋转传感器的信号为零，使得旋转传感器基本上是惯性稳定的。 旋转感测系统安装在旋转变压器上，该解算器被布置成测量伺服系统旋转旋转传感器的角度。

公开(公告)号：US06557415B2

公开(公告)日：2003-05-06

申请号：US10198971

申请日：2002-07-19

申请人： Robert E. Stewart ,  Stanley F. Wyse

发明人： Robert E. Stewart ,  Stanley F. Wyse

IPC分类号： G01C1900

CPC分类号： G01P15/14 ,  G01C19/56 ,  G01P15/097

摘要： A simplified and smaller accelerometer-gyro is provided by combining gyro and accelerometer functions in a single sensor unit which has a pair of counter oscillating accelerometers each having a pendulum or sense element and a vibrating element. The pendulum and vibrating element of each accelerometer are designed to be symmetrical so that the center of mass for each accelerometer are on a line which is parallel to the dither motion of the unit. The geometry of these two pendulums is configured so that the centers of percussion of each is at the same point. Electrodes on the top and bottom cover of the sensor unit combine the pickoff and forcing function with the pendulum tuning function, thereby simplifying electrical connection. A pair of mounting tabs are fastened to the frame by respective compliant beams. The accelerometer-gyro may be mounted in an enclosure that maintains a pressure below atmospheric around the accelerometer-gyro.

公开(公告)号：US06651500B2

公开(公告)日：2003-11-25

申请号：US09971345

申请日：2001-10-03

申请人： Robert E. Stewart ,  Stanley F. Wyse

发明人： Robert E. Stewart ,  Stanley F. Wyse

IPC分类号： G01C1900

CPC分类号： G01P15/125 ,  G01C19/5747 ,  G01P15/097

摘要： An integrated rate and accelerometer sensor includes two counter vibrating tuned accelerometers formed in a single substantially planar silicon body to form the sensing element. The two vibrating accelerometers are interleaved in a manner that places their respective centers of mass in the same line parallel to the direction of the vibration and has the centers of percussion of the two (pendulum) proof masses coincident. A phase insensitive quadrature nulling method is utilized for each of the two vibrating accelerometers. The sensor structure utilizes Pyrex for the top and bottom covers. Metalized electrodes, feedthrus and contact pads are also utilized for the sensing element, instead of interlayer wire bonds.

公开(公告)号：US08561466B2

公开(公告)日：2013-10-22

申请号：US12930289

申请日：2011-01-03

申请人： Stanley F. Wyse ,  Robert E. Stewart

发明人： Stanley F. Wyse ,  Robert E. Stewart

IPC分类号： G01C19/56

CPC分类号： G01C19/5656

摘要： The method and apparatus in one embodiment may have: providing a two-dimensional oscillator having a beam containing two principal elastic axes and two principal damping axes; driving the beam with drive components to oscillate across corners of the beam at approximately 45 degrees to sides of the beam, the drive components having forcer components that provide drive and pickoff components that provide feedback; and oscillating the beam in a normal mode and a reverse mode.

摘要翻译： 一个实施例中的方法和装置可以具有：提供具有包含两个主弹性轴和两个主阻尼轴的梁的二维振荡器; 用驱动部件驱动光束，以与光束的大约45度的角度在光束的角部振荡，驱动部件具有提供提供反馈的驱动和拾取部件的操作部件; 并以正常模式和反向模式振荡光束。

公开(公告)号：US20110100121A1

公开(公告)日：2011-05-05

申请号：US12930289

申请日：2011-01-03

申请人： Stanley F. Wyse ,  Robert E. Stewart

发明人： Stanley F. Wyse ,  Robert E. Stewart

IPC分类号： G01C19/56

CPC分类号： G01C19/5656

摘要： The method and apparatus in one embodiment may have: providing a two-dimensional axisymmetric oscillator having a beam containing two principal elastic axes and two principal damping axes; driving the beam with drive components to oscillate across corners of the beam at approximately 45 degrees to sides of the beam, the drive components having forcer components that provide drive and pickoff components that provide feedback; and oscillating the beam in a normal mode and a reverse mode.

摘要翻译： 一个实施例中的方法和装置可以具有：提供具有包含两个主弹性轴和两个主阻尼轴的梁的二维轴对称振荡器; 用驱动部件驱动光束，以与光束的大约45度的角度在光束的角部振荡，驱动部件具有提供提供反馈的驱动和拾取部件的操作部件; 并以正常模式和反向模式振荡光束。

公开(公告)号：US5428995A

公开(公告)日：1995-07-04

申请号：US27754

申请日：1993-03-08

申请人： Samuel N. Fersht ,  Stanley F. Wyse ,  Robert E. Stewart ,  Samuel G. Miller

发明人： Samuel N. Fersht ,  Stanley F. Wyse ,  Robert E. Stewart ,  Samuel G. Miller

IPC分类号： G01C19/56 ,  G01P15/18 ,  G01P9/04

CPC分类号： G01P15/18 ,  G01C19/56

摘要： A sensor for measuring angular rotation rates about three orthogonal axes is based upon sensing Coriolis acceleration forces with a pair of nearly-identical rotors coupled coaxialy by a torsion spring and counter-oscillating in rotation. The torsional oscillator is mounted within a case by means of radial vanes, each comprisig two piezoelectric ceramic plates bonded to a thin metal core responsive to drive signals and providing rotational vibration isolation. The arms of the rotors are designed as piezoelectric open loop accelerometers. Electrodes of selected configurations are mounted to the outer surfaces of the planar members to collect charge indicative of Coriolis accelerations proportional to the angular rotations about the orthogonal axes.

摘要翻译： 用于测量围绕三个正交轴的角度旋转速度的传感器基于用一对几乎相同的转子感测科里奥利加速力，该转子通过扭转弹簧共轴耦合并且在旋转中相反振荡。 扭转振荡器通过径向叶片安装在壳体内，每个都包含两个压电陶瓷板，它们响应于驱动信号和提供旋转振动隔离而结合到薄金属芯上。 转子的臂被设计为压电开环加速度计。 所选构造的电极安装到平面构件的外表面以收集指示与围绕正交轴线的角旋转成比例的科里奥利加速度的电荷。

公开(公告)号：US07886598B2

公开(公告)日：2011-02-15

申请号：US11499958

申请日：2006-08-07

申请人： Stanley F. Wyse ,  Robert E. Stewart

发明人： Stanley F. Wyse ,  Robert E. Stewart

IPC分类号： G01P9/04

CPC分类号： G01C19/5649

摘要： The method and apparatus in one embodiment may have: providing a two-dimensional axisymmetric oscillator having a beam containing two principal elastic axes and two principal damping axes; driving the beam with drive components to oscillate across corners of the beam at approximately 45 degrees to sides of the beam, the drive components having forcer components that provide drive and pickoff components that provide feedback; and oscillating the beam in a normal mode and a reverse mode.

公开(公告)号：US07565839B2

公开(公告)日：2009-07-28

申请号：US11499957

申请日：2006-08-07

申请人： Robert E. Stewart ,  Stanley F. Wyse

发明人： Robert E. Stewart ,  Stanley F. Wyse

IPC分类号： G01C19/56 ,  G01P9/04

CPC分类号： G01C19/5691 ,  G01C19/56 ,  G01C19/5649

摘要： The method and apparartus in one embodiment may have the steps of: providing a two-dimensional axisymmetric oscillator having a beam containing two principal elastic axes and two principal damping axes; driving the beam with drive components to oscillate; driving, during a first period, the beam along a drive axis of the beam in a direction normal to one pair of faces of the beam while Coriolis coupled vibration is sensed along a sense axis of the beam normal to an orthogonal pair of faces of the beam; reversing, during a second period, drive and sense axes driving the beam; reducing a bias of the beam to zero; and reducing a quadrature of the beam to zero.

摘要翻译： 在一个实施例中的方法和设备可以具有以下步骤：提供具有包含两个主弹性轴和两个主阻尼轴的梁的二维轴对称振荡器; 用驱动部件驱动光束振荡; 沿着垂直于光束的一对面的方向沿光束的驱动轴沿光束驱动光束，同时沿着垂直于正交对面的光束的感测轴感测科里奥利耦合的振动 光束; 在第二时段期间反转驱动和感测驱动梁的轴; 将光束的偏置减小到零; 并将光束的正交减小到零。

公开(公告)号：US06619121B1

公开(公告)日：2003-09-16

申请号：US09915026

申请日：2001-07-25

申请人： Robert E. Stewart ,  Stanley F. Wyse

发明人： Robert E. Stewart ,  Stanley F. Wyse

IPC分类号： G01C1956

CPC分类号： G01C19/5705 ,  G01C19/5755 ,  G01P15/14

摘要： Quadrature error occurs in Corolis based vibrating rate sensors because of manufacturing flaws that permit the sensing element to oscillate either linearly along or angularly about an axis that is not orthogonal to the output axis. This creates an oscillation along or about the output axis that is a component of the sensing element's vibration acceleration. This output axis oscillation is in phase with the driven acceleration of the sensing element and is called quadrature error since it is ninety degrees out of phase with the angular rate induced Coriolis acceleration. Rather than applying forces that reorient the axis of the driven vibration to be orthogonal to the output axis to eliminate the output axis oscillation, the present invention applies sinusoidal forces to the sensing element by means of a quadrature servo to cancel the output oscillation. In order to avoid the phase uncertainty associated with electronic modulation, the quadrature servo feeds back a DC signal that is modulated mechanically by means of an interdigitated variable area electrostatic forcer.

摘要翻译： 由于制造缺陷使得传感元件沿着或不沿着与输出轴正交的轴线呈线性或有角度地振荡，因此在Corolis基振动速率传感器中发生正交误差。 这将沿着或围绕作为感测元件的振动加速度的分量的输出轴产生振荡。 该输出轴振荡与传感元件的驱动加速度相同，称为正交误差，因为它与角速度引导的科里奥利加速度相差90度。 本发明不是施加使驱动振动轴正交于与输出轴正交以消除输出轴振动的力，而是通过正交伺服将正弦力施加到感测元件以消除输出振荡。 为了避免与电子调制相关的相位不确定性，正交伺服器通过交叉指向的可变区域静电激励器反馈被机械调制的DC信号。

公开(公告)号：US06474160B1

公开(公告)日：2002-11-05

申请号：US09864598

申请日：2001-05-24

申请人： Robert E. Stewart ,  Stanley F. Wyse

发明人： Robert E. Stewart ,  Stanley F. Wyse

IPC分类号： G01C1900

CPC分类号： G01P15/14 ,  G01C19/56 ,  G01P15/097

摘要： A simplified and smaller accelerometer-gyro is provided by combining gyro and accelerometer functions in a single sensor unit which has a pair of counter oscillating accelerometers each having a pendulum or sense element and a vibrating element. The pendulum and vibrating element of each accelerometer are designed to be symmetrical so that the center of mass for each accelerometer are on a line which is parallel to the dither motion of the unit. The geometry of these two pendulums is configured so that the centers of percussion of each is at the same point. Electrodes on the top and bottom cover of the sensor unit combine the pickoff and forcing function with the pendulum tuning function, thereby simplifying electrical connection. A pair of mounting tabs are fastened to the frame by respective compliant beams. The accelerometer-gyro may be mounted in an enclosure that maintains a pressure below atmospheric around the accelerometer-gyro.

摘要翻译： 通过在单个传感器单元中组合陀螺仪和加速度计功能来提供简化和较小的加速度计陀螺仪，该单个传感器单元具有一对具有摆动或感测元件和振动元件的计数器振荡加速度计。 每个加速度计的摆和振动元件被设计成对称的，使得每个加速度计的质心在与该单元的抖动运动平行的线上。 这两个摆的几何形状被配置成使得每个摆锤的中心在同一点。 传感器单元顶盖和底盖上的电极将传感器和强制功能与摆锤调谐功能相结合，从而简化了电气连接。 一对安装片通过相应的柔性梁固定在框架上。 加速度计陀螺仪可以安装在围绕加速度计陀螺仪的低于大气压的外壳中。