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1. 发明公开

EP3056859A1 BIAS AND SCALE-FACTOR ERROR MITIGATION IN A CORIOLIS VIBRATORY GYROSCOPE SYSTEM 有权
标题翻译： EOREM CORIOLIS-VIBRATIONSKREISELSYSTEM中的VORSPANNUNGS- UNDMASSSTABFEHLERABSCHWÄCHUNG
公开(公告)号：EP3056859A1
公开(公告)日：2016-08-17
申请号：EP16154922.5
申请日：2016-02-09
申请人： Northrop Grumman Systems Corporation
发明人： Stewart, Robert E. , Rozelle, David , Lee, Charles A.
IPC分类号： G01C19/5776
CPC分类号： G01C19/5677 , G01C19/5684 , G01C19/5691 , G01C19/5776 , G01C25/00
摘要： One embodiment of the invention includes a CVG system. A plurality of electrodes electrostatically force a resonator into a periodic motion based on a drive axis forcer signal applied to a first set of the plurality of electrodes and a sense axis force-rebalance signal applied to a second set of the plurality of electrodes, and provides a sense axis pickoff signal and a drive axis pickoff signal. A gyroscope controller generates the drive axis forcer signal based on the drive axis pickoff signal and calculates an angular rate of rotation about an input axis based on the sense axis force-rebalance signal. The gyroscope controller modulates a predetermined disturbance signal component onto the sense axis force-rebalance signal and to control a modulation phase of the sense axis force-rebalance signal based on detection of the predetermined disturbance signal component in the sense axis force-rebalance signal to substantially mitigate bias and scale-factor error.
摘要翻译：本发明的一个实施例包括CVG系统。多个电极基于施加到多个电极的第一组的驱动轴线信号和施加到多个电极的第二组的感测轴力 - 再平衡信号，将谐振器静电地强制为周期性运动，并且提供感测轴检测信号和驱动轴检测信号。陀螺仪控制器基于驱动轴检测信号产生驱动轴线检测信号，并基于感测轴力 - 再平衡信号计算围绕输入轴的角速度。陀螺仪控制器将预定的扰动信号分量调制到感测轴上的力 - 再平衡信号上，并且基于感测轴力 - 再平衡信号中的预定的扰动信号分量的检测来控制感测轴力平衡信号的调制相位，减轻偏差和比例因子误差。

2. 发明公开

EP1427987A1 VIBRATORY GYROSCOPIC RATE SENSOR 有权
标题翻译：振动陀螺仪传感器
公开(公告)号：EP1427987A1
公开(公告)日：2004-06-16
申请号：EP02755327.0
申请日：2002-09-06
申请人： BAE Systems PLC
发明人： FELL, Christopher Paul,Bae Systems Avionics , ELEY, Rebecka,Bae Systems Avionics , FOX, C.H.J.,Univ. of Nottingham S. of Mec. Eng , McWILLIAM, S.,Univ. of Nottingham S. of Mec. Eng
IPC分类号： G01C19/56
CPC分类号： G01C19/5677
摘要： A two axis gyroscope including a planar vibratory resonator (5) having a ring or hoop-like structure, carrier mode drive means (22) for causing the resonator (5) to vibrate in a cosnθ vibration mode, carrier mode pick-off means (23) for sensing movement of the resonator (5), x-axis and x-axis response mode pick-off means (25; 27) for detecting movement of the resonator in response to rotation about the x-axis and y-axis; x-axis and y-axis response mode drive means (24; 26) for nulling said motions and support means (9) for flexibly supporting the resonator (5) and for allowing the resonator to vibrate relative to the support means (9) in response to the drive means (22) and to applied rotation; wherein the support (9) means comprises only L legs, where, when L is even: L=2N/K, and where, when L is odd: L=N/K, where K is an integer, L > 2 and N is the carrier mode order.

3. 发明公开

EP1212584A2 HIGH Q ANGULAR RATE SENSING GYROSCOPE 审中-公开
标题翻译： ANGLE高速离心高品质
公开(公告)号：EP1212584A2
公开(公告)日：2002-06-12
申请号：EP00965039.1
申请日：2000-09-14
申请人： WATSON INDUSTRIES, INC.
发明人： WATSON, William, S.
IPC分类号： G01C19/00
CPC分类号： G01C19/567 , G01C19/5642 , G01C19/5677
摘要： A structure and arrangement for improving the accuracy and efficiency of an angular rate sensing gyroscope is herein disclosed. Voltage pick-off conductors are applied to an area of the surface of a resonating element of an angular rate sensing gyroscope that is subject to substantially zero stress when the gyroscope is rotationally stationary. Actuator conductors are similarly applied to a resonating element at a location bounded by areas of the resonating element subject to substantially uniform levels of stress when the gyroscope is rotationally stationary. A method for improving the voltage response of a piezoelectric resonating element is also disclosed.

4. 发明授权

EP2825844B1 VIBRATORY RING STRUCTURE 有权
标题翻译：振动环结构
公开(公告)号：EP2825844B1
公开(公告)日：2018-01-03
申请号：EP13709992.5
申请日：2013-03-06
申请人： Atlantic Inertial Systems Limited
发明人： FELL, Christopher Paul
IPC分类号： G01C19/5677 , G01C19/5776 , G01C19/5684
CPC分类号： G01C19/5684 , G01C19/5677 , G01C19/5776
摘要： A method of tuning a vibratory ring structure includes determining an angular spacing for a pair of fine tuning holes of substantially the same size, located on or near the neutral axis of the vibratory ring structure, the angular offset being selected to reduce to an acceptable level the frequency split between the target normal mode and a further normal mode which is angularly offset relative to the target normal mode, and forming the pair of fine tuning holes in the vibratory ring structure at the determined angular spacing. A ring structure, for example, a gyroscope, tuned or balanced in this manner, is also disclosed.

5. 发明公开

EP2696169A3 Force-rebalance coriolis vibratory gyroscope 有权转让
标题翻译：科里奥利 - Vibrationskreisel mit Kraftausgleich
公开(公告)号：EP2696169A3
公开(公告)日：2015-07-22
申请号：EP13179489.3
申请日：2013-08-06
申请人： Innalabs Limited
发明人： Beitia, Jose , Okon, Isaak , Simonenko, Dmitri V , Renault, Alain
IPC分类号： G01C19/5677 , G01C19/5691
CPC分类号： G01C19/5677 , G01C19/5691 , G01C25/00
摘要： An effective and precise method and system for compensation and measurement of a zero-bias in an axisymmetrical CVG (Coriolis Vibrating Gyroscope) is provided. Principal mode is driven according to an X-axis. Angular velocity is measured through Coriolis mode excitation along Y-axis. The sensitive axis of the gyroscope is reversed by 180 degrees by switching input and sense signals. Vibration is then driven along Y-axis and angular velocity is sensed along X-axis. On each position, after an arbitrary period of time, the gyroscope output is stored. Half-difference in outputs between two opposite position gives angular velocity and zero-bias effect is canceled. Half-sum in outputs between two opposite position gives the zero-bias error.
摘要翻译：提供了一种用于补偿和测量轴对称CVG（科里奥利振动陀螺仪）中的零偏差的有效和精确的方法和系统。主模式根据X轴驱动。角速度通过沿着Y轴的科里奥利模式激发测量。通过切换输入和感测信号，陀螺仪的灵敏轴反转180度。然后沿Y轴驱动振动，并沿X轴检测角速度。在每个位置，在任意一段时间后，存储陀螺仪输出。两个相对位置之间输出的差值产生角速度，零偏置效应被取消。在两个相对位置之间的输出中的半和给出零偏差误差。

6. 发明公开

EP2572162A1 ANGULAR RATE SENSOR WITH IMPROVED AGEING PROPERTIES 有权
标题翻译： WINKELGESCHWINDIGKEITSSENSOR MIT VERBESSERTEN ALTERUNGSEIGENSCHAFTEN
公开(公告)号：EP2572162A1
公开(公告)日：2013-03-27
申请号：EP11723999.6
申请日：2011-05-19
申请人： Silicon Sensing Systems Limited
发明人： DURSTON, Michael , TOWNSEND, Kevin , FELL, Christopher, Paul
IPC分类号： G01C19/56
CPC分类号： G01P3/44 , G01C19/567 , G01C19/5677
摘要： An angular velocity sensor is described with improved ageing and hysteresis properties. The sensor may be of a ring type driven by a driver circuit, the sensor further comprising primary and secondary portions having corresponding signal pickoffs. The gain of the primary pickoff signal and the capacitance of the primary portions of the sensor are controlled relative to the gain of the secondary pickoff and the capacitance of the secondary portions of the sensor. Control electronics is provided that enables matching of the relative signals from the respective channels. In this way, temperature hysteresis and ageing effects of materials used in forming the sensor are overcome.
摘要翻译：描述了具有改进的老化和滞后特性的角速度传感器。传感器可以是由驱动器电路驱动的环形，传感器还包括具有对应的信号拾取的主要和次要部分。传感器的主要部分的主要部分的增益和传感器的主要部分的电容相对于传感器的次级传感器的增益和传感器的次级部分的电容进行控制。提供了控制电子装置，其使得能够匹配来自各个通道的相对信号。以这种方式克服了用于形成传感器的材料的温度滞后和老化效应。

7. 发明授权

EP2191232B1 IMPROVEMENTS IN OR RELATING TO ANGULAR VELOCITY SENSORS 有权
标题翻译：与之相关的改进与角度速度传感器
公开(公告)号：EP2191232B1
公开(公告)日：2011-08-17
申请号：EP08788768.3
申请日：2008-09-08
申请人： Atlantic Inertial Systems Limited
发明人： MALVERN, Alan, Richard , FELL, Christopher, Paul , KAZER, Andrew , TOWNSEND, Kevin
IPC分类号： G01C19/56
CPC分类号： G01C19/5677
摘要： A gyroscope has a ring (70) and a primary drive transducer (72) for oscillating the ring (70) substantially at the resonant frequency in a primary mode. A primary control loop receives primary pick-off signals from the primary pick-off transducer (74) and provides primary drive signals 116 to the primary drive transducer (72) so as to maintain resonant oscillation of the ring (70). The primary control loop includes a demodulator (78) determining the amplitude of the fundamental frequency of the primary pick-off signals and a demodulator (82) determining the amplitude of the second harmonic frequency of the primary pick-off signals and a drive signal generator (100, 106, 110 and 114) producing the primary drive signals (116) with an amplitude that is dependent on a ratio of the amplitude of the second harmonic frequency of the primary pick-off signal over the amplitude of the fundamental frequency of the primary pick-off signal as derived by a divider (100).

8. 发明授权

EP0836073B1 A rate sensor 失效
标题翻译：速率传感器
公开(公告)号：EP0836073B1
公开(公告)日：2004-02-25
申请号：EP97203115.7
申请日：1997-10-07
申请人： BAE SYSTEMS plc
发明人： Fell, Christopher Paul
IPC分类号： G01C19/56
CPC分类号： G01C19/5677

9. 发明授权

EP0936440B1 Vibrators, vibratory gyroscopes, a method of detecting a turning angular rate and linear accelerometer 有权
标题翻译：振动器，振动陀螺仪，用于检测角速度和线加速度计的方法
公开(公告)号：EP0936440B1
公开(公告)日：2003-05-07
申请号：EP99102624.6
申请日：1999-02-11
申请人： NGK INSULATORS, LTD.
发明人： Kiruchi, Takayuki , Shosaku, Gouji , Yukihisa, Osugi , Takao, Soma
IPC分类号： G01C19/56
CPC分类号： G01C19/5677

10. 发明公开

EP1250564A1 VIBRATORY SENSOR OPERATING AS A RATE GYRO ABOUT TWO AXES AND AS A RATE INTEGRATING GYRO ABOUT THE THIRD ONE 有权
标题翻译：振动传感器充当转速旋转 - 两轴AS角度测量离心第三轴
公开(公告)号：EP1250564A1
公开(公告)日：2002-10-23
申请号：EP01900191.6
申请日：2001-01-08
申请人： BAE SYSTEMS plc
发明人： FELL, Christopher, Paul , TOWNSEND, Kevin
IPC分类号： G01C19/56 , G01P9/04
CPC分类号： G01C19/5677 , G01C19/5691
摘要： A vibrating structure gyroscope comprises a resonant body, drive transducer means for driving resonant motion of the body, pick-off means for producing signals representative of the resonant motion, and signal processing means for extracting z-axis orientation information and x- and y-axis rate information from the signals. The resonant body is planar and the resonant motion takes place in a vibration mode pattern whose orientation angle with respect to the body varies in accordance with z-axis orientation of the body and couples energy into an out-of-plane response mode motion in accordance with rotation of the body about the x- or y-axis. Signal processing means resolves the out-of-plane response mode motion with reference to a z-axis orientation signal to extract the x- and y-axis rate information.

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