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1. 发明授权

US12123718B1 Mitigating bias instabilities in optical gyroscopes 有权
公开(公告)号：US12123718B1
公开(公告)日：2024-10-22
申请号：US18626209
申请日：2024-04-03
申请人： Anello Photonics, Inc.
发明人： Nathan Abrams , Mario Paniccia , Mike Horton
IPC分类号： G01C19/64 , G01C19/10 , G01C19/66 , G01C19/72
CPC分类号： G01C19/661 , G01C19/10 , G01C19/64 , G01C19/72
摘要： One or more phase modulators in an optical gyroscope operate on two counter-propagating beams to introduce a phase shift between the beams before the beams are interferometrically combined to generate a rotation signal. A signal generator generates first and second modulation frequencies to drive the phase modulators. The first modulation frequency in isolation biases the rotation signal at an operating point sensitive to rotation, and the second modulation frequency in isolation biases the rotation signal at an operating point insensitive to rotation. One or more control integrated circuits (ICs) isolate a first portion of the rotation signal associated with the first modulation frequency and a second portion of the rotation signal associated with the second modulation frequency. The control ICs determine a difference between the first and second portions of the rotation signal to remove one or more bias instabilities from the first portion of the rotation signal.

2. 发明授权

US10228249B2 Duty-cycled gyroscope 有权
公开(公告)号：US10228249B2
公开(公告)日：2019-03-12
申请号：US15282227
申请日：2016-09-30
申请人： InvenSense, Inc.
发明人： Derek Shaeffer , Stanley Wang
IPC分类号： G01C19/00 , G01P3/44 , G01P15/08 , G01C19/10 , G01C19/5776 , H03G3/20 , H03L7/089 , H03L7/093 , H03L7/099 , G01C19/06
摘要： A gyroscope system comprises a MEMS gyroscope coupled to a drive system and a sense system. The drive system maintains the MEMS gyroscope in a state of oscillation and the sense system for receiving, amplifying, and demodulating an output signal of the MEMS gyroscope that is indicative of the rate of rotation. The gyroscope system further includes a phase-locked look (PLL) which receives a reference clock (REFCLK) from the drive system and produces a system clock (CLK). Finally, the gyroscope system includes a controller operating on the system clock sets an operating state of the drive system and the sense system and also controls a state of the PLL. One or more system state variables are maintained in a substantially fixed state during a protect mode thereby enabling rapid transitions between a low-power mode and a normal operating mode of the gyroscope system.

3. 发明申请

US20170016723A1 DUTY-CYCLED GYROSCOPE 审中-公开
标题翻译：带周期的陀螺仪
公开(公告)号：US20170016723A1
公开(公告)日：2017-01-19
申请号：US15282227
申请日：2016-09-30
申请人： InvenSense, Inc.
发明人： Derek SHAEFFER , Stanley WANG
IPC分类号： G01C19/10 , H03L7/093 , H03L7/089 , H03G3/20 , H03L7/099
CPC分类号： G01C19/10 , G01C19/065 , G01C19/5776 , H03G3/20 , H03L7/0891 , H03L7/093 , H03L7/099 , Y10T74/1229
摘要： A gyroscope system comprises a MEMS gyroscope coupled to a drive system and a sense system. The drive system maintains the MEMS gyroscope in a state of oscillation and the sense system for receiving, amplifying, and demodulating an output signal of the MEMS gyroscope that is indicative of the rate of rotation. The gyroscope system further includes a phase-locked look (PLL) which receives a reference clock (REFCLK) from the drive system and produces a system clock (CLK). Finally, the gyroscope system includes a controller operating on the system clock sets an operating state of the drive system and the sense system and also controls a state of the PLL. One or more system state variables are maintained in a substantially fixed state during a protect mode thereby enabling rapid transitions between a low-power mode and a normal operating mode of the gyroscope system.
摘要翻译：陀螺仪系统包括耦合到驱动系统和感测系统的MEMS陀螺仪。驱动系统将MEMS陀螺仪维持在振荡状态，以及用于接收，放大和解调表示旋转速率的MEMS陀螺仪的输出信号的感测系统。陀螺仪系统还包括从驱动系统接收参考时钟（REFCLK）并产生系统时钟（CLK）的锁相外观（PLL）。最后，陀螺仪系统包括在系统时钟上操作的控制器设置驱动系统和感测系统的操作状态，并且还控制PLL的状态。在保护模式期间，一个或多个系统状态变量保持在基本上固定的状态，从而实现陀螺仪系统的低功率模式和正常操作模式之间的快速转换。

4. 发明申请

US20120017709A1 GYRO STABILIZER 失效
标题翻译： GYRO稳定器
公开(公告)号：US20120017709A1
公开(公告)日：2012-01-26
申请号：US12839636
申请日：2010-07-20
申请人： Tom Smith
发明人： Tom Smith
IPC分类号： G01C19/10
CPC分类号： G01C19/04 , A63B21/222 , Y10T74/1254 , Y10T74/1282
摘要： A gyroscope power starter has a housing having a bottom and a concave head slanted at a predetermined angle relative to the housing, the concave head engaging a gyroscope rotor. An electric power source is mounted on the housing. A motor is rigidly mounted to a housing. The motor is connected to the power source for producing a rotational power in response to a switching force. A power rotor is connected in unity with the motor and protruding from an opening into the concave head of the housing to transmit the rotational motor power to the gyroscope rotor. An alignment member is formed in a concave center area. The alignment member protrudes into a groove of a gyroscopic rotor when the gyroscopic rotor is rotating.
摘要翻译：陀螺仪动力起动器具有壳体，该壳体具有相对于壳体以预定角度倾斜的底部和凹形头部，凹形头部接合陀螺仪转子。电源安装在外壳上。马达刚性地安装到外壳上。电动机连接到电源以产生响应于切换力的旋转动力。动力转子与电动机一体地连接并从开口突出到壳体的凹头中，以将旋转电机功率传递到陀螺仪转子。对准构件形成在凹入的中心区域中。当陀螺转子旋转时，对准构件突出到陀螺转子的凹槽中。

5. 发明授权

US4266432A Gyro motor control 失效
标题翻译：陀螺仪电机控制
公开(公告)号：US4266432A
公开(公告)日：1981-05-12
申请号：US899352
申请日：1978-04-24
申请人： George F. Schroeder , Walter J. Krupick
发明人： George F. Schroeder , Walter J. Krupick
IPC分类号： G01C19/08 , H02P27/04 , G01C19/10 , G01C19/28
CPC分类号： H02P27/026 , H02P23/22 , H02P27/045 , Y10T74/1279 , Y10T74/1282
摘要： In order to eliminate the day-to-day gyro drift phenomena which result from interaction of the magnetic pole position of the synchronous motor typically used to drive the gyro and the gyro wheel, an induction motor controlled by a phase locked loop referenced to an appropriate control frequency is utilized to drive the gyro.
摘要翻译：为了消除由通常用于驱动陀螺仪和陀螺仪轮的同步电动机的磁极位置的相互作用导致的日常陀螺仪漂移现象，由相位锁定环控制的感应电动机控制频率用于驱动陀螺仪。

6. 发明授权

US3679960A Electric power source system for gyroscopic instrument 失效
标题翻译：电力仪器用电源系统
公开(公告)号：US3679960A
公开(公告)日：1972-07-25
申请号：US3679960D
申请日：1971-01-19
申请人： TOKYO KEIKI KK
发明人： HIROKAWA YOICHI , SATO MASATOSHI
IPC分类号： G01C19/10 , G01C19/38 , H02K7/02
CPC分类号： G01C19/10 , G01C19/38
摘要： An electric power source system for a gyroscopic instrument in which the kinetic energy of the gyro rotor revolving at high speed is used as an induction generator during times when the normal electrical power source for the gyroscopic instrument fails and to maintain the gyroscopic instrument in its normal operative condition during the time the electrical power source is disconnected.
摘要翻译：用于陀螺仪器的电源系统，其中陀螺仪转子高速旋转的动能用作陀螺仪器的正常电源故障时的感应发电机，并将陀螺仪器保持在正常状态在电源断开期间的工作状态。

7. 发明授权

US2859625A Flexible conductive means 失效
标题翻译：柔性导电装置
公开(公告)号：US2859625A
公开(公告)日：1958-11-11
申请号：US51318355
申请日：1955-06-06
申请人： HONEYWELL REGULATOR CO
发明人： BONNELL CHARLES R
IPC分类号： G01C19/10
CPC分类号： G01C19/10 , Y10T74/12 , Y10T74/1282

8. 发明授权

US11644312B1 Single-axis rotational inertial navigation system based on bidirectional optical communication and wireless power supply 有权
公开(公告)号：US11644312B1
公开(公告)日：2023-05-09
申请号：US17901295
申请日：2022-09-01
申请人： ZHEJIANG UNIVERSITY
发明人： Tiantian Huang , Meng Niu , Lingyun Ye , Kaichen Song
IPC分类号： G01C19/32 , H02J50/10 , G01C21/16 , G01C19/18 , G01C19/10 , H01F27/28 , H01F27/24 , H04B10/116
CPC分类号： G01C19/32 , G01C19/10 , G01C19/18 , G01C21/16 , H01F27/24 , H01F27/28 , H02J50/10 , H04B10/116
摘要： Disclosed is a single-axis rotational inertial navigation system based on bidirectional optical communication and wireless power supply. The system comprises a bidirectional optical communication unit, a wireless power supply unit, a motor driving unit, an inertial measurement unit, a rotating-end information acquisition and processing unit, and a fixed-end information receiving and processing unit. According to the system, in the same transmission channel, information interaction between a rotating end and a fixed end is achieved by adopting infrared light communication and visible light communication; and medium-power high-efficiency wireless energy transmission under a specific distance is achieved by adopting a magnetically coupled resonant wireless power supply method. The design of a high-accuracy motor driving unit is achieved by adopting the design of combining a frameless torque motor with an incremental circular grating and double reading heads.

9. 发明授权

US10809063B2 Yaw rate sensor and method for operating a yaw rate sensor 有权
公开(公告)号：US10809063B2
公开(公告)日：2020-10-20
申请号：US16486759
申请日：2018-03-01
申请人： Robert Bosch GmbH
发明人： Guangzhao Zhang , Andrea Visconti , Francesco Diazzi , Ruslan Khalilyulin
IPC分类号： G01C19/58 , G01C19/10 , G01C19/5712 , G01C19/5776
摘要： A yaw rate sensor having a drive for exciting an oscillation of an oscillatory mass, the drive having at least one drive amplifier circuit, and having a detector for detecting a displacement of the oscillatory mass, the detector having at least one detector amplifier circuit, either a low bias current being able to be set for operating the drive amplifier circuit and/or the detector amplifier circuit in an energy-saver mode, or a higher bias current being able to be set for operating the drive amplifier circuit and/or the detector amplifier circuit in a normal mode.

10. 发明授权

US4779469A Power and signal transfer unit 失效
标题翻译：电源和信号传输单元
公开(公告)号：US4779469A
公开(公告)日：1988-10-25
申请号：US48431
申请日：1987-05-11
申请人： Paul E. Ashley
发明人： Paul E. Ashley
IPC分类号： G01C19/04 , G01C19/10 , G01C19/28 , H01R39/00
CPC分类号： G01C19/04 , G01C19/10 , Y10T74/1275
摘要： A power and signal transfer unit has a stator assembly and a rotor assembly for a control moment gyroscope and for overcoming the problem of electrical noise in a slip ring by using a slip ring having a flexible cable. A stator assembly has a frame member and having a plurality of brushes. A rotor assembly includes a rotor member, and includes a flexible cable having a plurality of conductors, each conductor being connected at an inner terminal to the rotor member and being connected at an outer terminal, and includes a slip ring member rotatably supported by the frame member for rotation relative to the frame member and having a plurality of conductive portions, each conductive portion being respectively connected to an outer terminal and being in contact with on of the brushes.
摘要翻译：电力和信号传递单元具有用于控制力矩陀螺仪的定子组件和转子组件，并且通过使用具有柔性电缆的滑环来克服滑环中的电噪声问题。定子组件具有框架构件并且具有多个刷子。转子组件包括转子构件，并且包括具有多个导体的柔性电缆，每个导体在内部端子处连接到转子构件并且在外部端子处连接，并且包括由框架可旋转地支撑的滑环构件构件相对于框架构件旋转并且具有多个导电部分，每个导电部分分别连接到外部端子并与电刷接触。

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