公开(公告)号：US5473946A

公开(公告)日：1995-12-12

申请号：US304090

申请日：1994-09-09

申请人： Stanley F. Wyse ,  Daniel P. McLane ,  Jason A. Herring

发明人： Stanley F. Wyse ,  Daniel P. McLane ,  Jason A. Herring

IPC分类号： G01P15/125 ,  G01P15/13

CPC分类号： G01P15/125 ,  G01P15/131

摘要： A force balanced accelerometer system comprises an accelerometric sensor and a control system. The sensor comprises a conductive pendulum pivotably mounted between first and second electrode plates. The control system establishes a cycle period with three phases. In the first phase, the pendulum is electrically isolated in an electric field established between the electrodes. The pendulum is moved from a null position in response to inertial acceleration, and a pickoff signal indicative of the acceleration-responsive position is generated. The pickoff signal is fed into a sample-and-hold circuit and then into a servo compensation circuit, having proportional and integral control, so as to generate a force-indicative signal indicative of the magnitude and direction of the force required to restore the pendulum to the null position. At the start of the second phase, the electrode required to restore the pendulum to its null position, selected in accordance with the sign of the force-indicative signal, is maintained at a first fixed potential, while the pendulum and the other plate are switched to a second fixed potential. The second phase is maintained for a time period determined by the magnitude of the force-indicative signal, which time period is a measure of the sensed acceleration. At the end of the second phase, the third phase begins with the electrodes and pendulum switched to ground, until the cycle repeats. The cycle period and the timing of the phases are controlled by a microprocessor.

摘要翻译： 力平衡加速度计系统包括加速度传感器和控制系统。 传感器包括可枢转地安装在第一和第二电极板之间的导电摆。 控制系统建立了三个循环周期。 在第一阶段中，摆锤在电极之间建立的电场中被电隔离。 响应于惯性加速度，摆动从空位移动，并且产生指示加速度响应位置的检测信号。 拾取信号被馈送到采样保持电路中，然后被馈送到具有比例和积分控制的伺服补偿电路中，以便产生指示恢复摆锤所需力的大小和方向的力指示信号 到零位置。 在第二阶段开始时，根据力指示信号的符号将摆动恢复到其零位所需的电极保持在第一固定电位，而摆和另一个板被切换 达到第二固定电位。 第二阶段被维持在由力指示信号的大小确定的时间段内，该时间周期是感测加速度的量度。 在第二阶段结束时，第三阶段开始于电极和摆锤切换到地面，直到循环重复。 循环周期和相位的定时由微处理器控制。

公开(公告)号：US5604308A

公开(公告)日：1997-02-18

申请号：US589578

申请日：1996-01-22

申请人： John G. Mark ,  Daniel P. McLane ,  Daniel A. Tazartes ,  Stanley F. Wyse

发明人： John G. Mark ,  Daniel P. McLane ,  Daniel A. Tazartes ,  Stanley F. Wyse

IPC分类号： G01P15/00 ,  G01P15/13

CPC分类号： G01P15/13

摘要： A digital circuit for adapting the output of a closed-loop accelerometer to a utilization circuit where the cycle time of the rebalance loop of the accelerometer is unrelated to the cycle time of the utilization circuit. A register receives and stores a digital value representative of measured acceleration and a bank of serially-arranged divide-by-two counters accepts the output of the rebalance loop clock. A gate arrangement makes one-by-one correlations between the states of the register and the outputs of the divide-by-two counters. A trigger circuit receives the gate outputs, providing a pulse when triggered by a downgoing edge of a square wave output of the gate array. A counter receives the pulse stream and is gated, in turn, in accordance with the cycle time of the utilization circuit so that the accelerometer data employed therein is representative of the portion of the acceleration occurring during a cycle of the utilization circuit.

摘要翻译： 一种用于将闭环加速度计的输出适配到利用电路的数字电路，其中加速度计的重新平衡环路的周期时间与利用电路的周期时间无关。 寄存器接收并存储表示测量加速度的数字值，并且串行排列的二位计数器的存储体接受重新平衡环路时钟的输出。 门阵列在寄存器的状态和分频计数器的输出之间形成一个一个的相关性。 触发电路接收栅极输出，当由栅极阵列的方波输出的下降沿触发时提供脉冲。 计数器接收脉冲流，并且根据利用电路的周期时间进行选通，使得其中使用的加速度计数据代表在利用电路的周期期间发生的加速度的部分。

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：US5983718A

公开(公告)日：1999-11-16

申请号：US892252

申请日：1997-07-14

申请人： Stanley F. Wyse ,  Daniel A. Tazartes ,  Juergen K. P. Flamm ,  Charles A. Lee

发明人： Stanley F. Wyse ,  Daniel A. Tazartes ,  Juergen K. P. Flamm ,  Charles A. Lee

IPC分类号： G01C19/5705 ,  G01C19/5776 ,  G01P9/04

CPC分类号： G01C19/5705 ,  G01C19/5776

摘要： A dithered Coriolis acceleration sensor system has a proof mass that is free of feedback in the accelerometer servo loop at the dither frequency by totally notching out all feedback torque at this frequency. The proof mass relative motion is then a direct measure of the rate because there is no feedback torque to alter the proof mass response to the acceleration. The feedback modulation system according to the invention captures the Coriolis-sensor output such that the phase and gain of the signal generated from the sensor are of no concern in maintaining good scale factor.

摘要翻译： 抖动的科里奥利加速度传感器系统具有通过在该频率下完全切断所有反馈转矩，以抖动频率在加速度计伺服回路中无反馈的证明质量。 因此，质量相对运动的质量是直接测量速率，因为没有反馈转矩来改变对加速度的质量响应。 根据本发明的反馈调制系统捕获科里奥利传感器输出，使得从传感器产生的信号的相位和增益在保持良好的比例因子方面是不必要的。

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：US06883361B2

公开(公告)日：2005-04-26

申请号：US10894539

申请日：2004-07-20

申请人： Stanley F. Wyse

发明人： Stanley F. Wyse

IPC分类号： G01C19/56 ,  G01C19/5719 ,  G01P21/00 ,  G01C25/00

CPC分类号： G01C19/5719 ,  G01C19/56

摘要： Quadrature error occurs in vibrating gyroscopes because of manufacturing flaws that permit the sensing element (proof mass) to oscillate about an axis that is not orthogonal to the output axis. This creates an oscillation about the output axis that has a component of the sensing element's vibration acceleration. This output axis oscillation, which is in phase with the driven acceleration of the sensing element, is called quadrature torque since it is ninety degrees out of phase with the angular rate induced acceleration. In order to eliminate this output axis oscillation, the present invention generates sinusoidal forces on the dither mass by applying dc voltages on the dither mass pickoff electrodes. These forces create a counter dither motion about the output axis that cancels the output axis oscillation generated by the non-orthogonal dither axis.

摘要翻译： 由于制造缺陷使得传感元件（检验质量）围绕不与输出轴正交的轴振荡，所以在振动陀螺仪中发生正交误差。 这产生了一个关于输出轴的振荡，其具有感测元件的振动加速度的分量。 与感应元件的驱动加速度相同的输出轴振荡被称为正交转矩，因为它与角速率感应加速度相差90度。 为了消除该输出轴振动，本发明通过在抖动质量传感电极上施加直流电压来产生抖动质量上的正弦力。 这些力产生关于输出轴的反抖动运动，其消除由非正交抖动轴产生的输出轴振动。

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：US5191794A

公开(公告)日：1993-03-09

申请号：US633260

申请日：1990-12-24

申请人： Henry C. Abbink ,  Daryl K. Sakaida ,  Stanley F. Wyse

发明人： Henry C. Abbink ,  Daryl K. Sakaida ,  Stanley F. Wyse

IPC分类号： G01P15/093 ,  G01P15/13

CPC分类号： G01P15/093 ,  G01P15/132

摘要： An integrated accelerometer includes features for minimizing the effects of foreseeable operational stresses. The accelerometer is of a type that includes a planar support base having an internal aperture for accommodating a hinged strut and limit stops for minimizing the travel of the shadow paddle portion of the strut. The limit stops are fabricated of material of suitable spring constant to provide an appropriate degree of "give" without degrading instrument performance or accuracy. Two-piece arrangements sandwich the hinges, thereby limiting flexure to an acceptable range. The predictable mechanical stresses resulting, for example, from thermal coefficient mismatches between the materials of the torquer coil and the strut are minimized by the use of a spacer intermediate the base and the coil. The spacer, fabricated of material whose thermal coefficient closely matches that of the pendulous mass is generally circular, and includes diametrically-opposed prongs on the upper and lower edges thereof, such arrangements of prongs being staggered by ninety degrees.

摘要翻译： 集成的加速度计包括用于最小化可预见的操作应力的影响的特征。 加速度计是一种类型，其包括具有用于容纳铰接支柱的内孔的平面支撑基座，并且限制止挡件以最小化支柱的阴影桨部分的行进。 极限挡块由合适弹簧常数的材料制成，以提供适当程度的“给”而不降低仪器性能或精度。 两件式布置将铰链夹在中间，从而将弯曲限制在可接受的范围内。 通过使用在基座和线圈之间的间隔件，可以最大限度地减少由例如扭矩线圈和支柱的材料之间的热系数失配导致的可预测的机械应力。 由与其相匹配的材料制成的间隔件通常是圆形的，并且在其上边缘和下边缘上包括直径相对的尖头，这样的插脚布置成90度。

公开(公告)号：US5056366A

公开(公告)日：1991-10-15

申请号：US456532

申请日：1989-12-26

申请人： Samuel N. Fersht ,  Stanley F. Wyse

发明人： Samuel N. Fersht ,  Stanley F. Wyse

IPC分类号： G01C19/5607

CPC分类号： G01C19/5607

摘要： A vibrating rotation rate sensor of the type that includes a generally-planar, H-shaped frame of piezoelectric material such as quartz. A first set of drive electrodes is fixed to a pair of upper tines and a second set of pickoff electrodes is fixed to a pair of lower tines. An array of control electrodes is fixed to the upper tine pair adjacent the cross-piece of the H-shaped frame. The control electrodes permit the application of control signals for nulling Coriolis-induced out-of-plane vibration of the upper tines allowing use of a resonant frame.

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。