公开(公告)号：EP2171528B1

公开(公告)日：2020-07-15

申请号：EP08794636.4

申请日：2008-07-22

申请人： Northrop Grumman Guidance and Electronics Company, Inc.

发明人： HALL, David, B.

IPC分类号： G02F1/01

公开(公告)号：EP2322902B1

公开(公告)日：2019-01-23

申请号：EP10014496.3

申请日：2010-11-11

申请人： Northrop Grumman Guidance and Electronics Company, Inc.

发明人： Chueh, Kainan ,  Dickman, Jeffrey ,  Ahmadi, Reza

IPC分类号： G01C21/12 ,  G01C21/16 ,  G06T7/73 ,  G01C21/00

公开(公告)号：EP2733461A3

公开(公告)日：2018-01-03

申请号：EP13191755.1

申请日：2013-11-06

申请人： Northrop Grumman Guidance and Electronics Company, Inc.

发明人： Tazartes, Daniel A.

IPC分类号： G01C19/5776 ,  G01P15/097 ,  G01H3/00

摘要： A system is provided for controlling the amplitude of a vibrating resonant sensor through a drive signal applied to the resonator. The system comprises a controller that provides the drive signal to a forcer coupled to the resonator to excite the resonator into vibration at its resonant frequency. The system further comprises a buffer having an input node that receives charge of a pickoff capacitor of the resonator that is a measure of the resonator vibration and a current reference waveform. The buffer provides an output that is a difference signal that represents an error of the resonator vibration that corresponds to a difference between the measured resonator vibration and the current reference waveform, wherein the controller adjusts the drive signal in order to null the difference signal.

摘要翻译： 提供一种系统，用于通过施加到谐振器的驱动信号来控制振动谐振传感器的振幅。 该系统包括控制器，该控制器将驱动信号提供给耦合到谐振器的推力器以激励谐振器以其谐振频率振动。 该系统还包括具有输入节点的缓冲器，该输入节点接收作为谐振器振动的量度的谐振器的拾取电容器的电荷和电流基准波形。 缓冲器提供输出，该输出是表示对应于所测量的谐振器振动与当前参考波形之间的差的谐振器振动的误差的差信号，其中控制器调节驱动信号以使该差信号为零。

公开(公告)号：EP2733462A3

公开(公告)日：2017-09-27

申请号：EP13191887.2

申请日：2013-11-07

申请人： Northrop Grumman Guidance and Electronics Company, Inc.

发明人： Tazartes, Daniel A. ,  Dimashkie, Bassam S.

IPC分类号： G01C19/72 ,  G01C25/00

摘要： A fiber optic gyroscope (FOG) is provided. The FOG comprises a depolarizer that receives light from a light source, a multifunction integrated optic chip (MIOC) and a sensing coil coupled to outputs of the MIOC. The FOG also includes a polarizer coupled between an output of the depolarizer and an input of the MIOC. The polarizer mitigates polarization non-reciprocity (PNR) bias error and enhances the polarization extinction ratio (PER) of the FOG.

摘要翻译： 提供光纤陀螺仪（FOG）。 FOG包括接收来自光源的光的去偏振器，多功能集成光学芯片（MIOC）和耦合到MIOC输出的感测线圈。 FOG还包括耦合在去偏振器的输出和MIOC的输入之间的偏振器。 偏振器减轻了偏振非互易性（PNR）偏置误差并增强了FOG的偏振消光比（PER）。

公开(公告)号：EP2685210A3

公开(公告)日：2015-12-16

申请号：EP13175202.4

申请日：2013-07-05

申请人： Northrop Grumman Guidance and Electronics Company, Inc.

发明人： Stewart, Robert E. ,  Bulatowicz, Michael D.

IPC分类号： G01C19/5712

CPC分类号： G01C19/5712

摘要： A resonator gyroscope includes a central post; a resonator coupled to the central post; and a diaphragm coupled to the resonator, wherein at least one of the diaphragm and the central post accommodates rotation of the resonator in an axis in a plane of the diaphragm.

公开(公告)号：EP2791702A2

公开(公告)日：2014-10-22

申请号：EP12857755.8

申请日：2012-12-13

申请人： Northrop Grumman Guidance and Electronics Company, Inc.

发明人： GUNAWARDENA, Sanjeev ,  DICKMAN, Jeff ,  COSGROVE, Mathew A.

IPC分类号： G01S19/00

CPC分类号： H04B1/709 ,  G01S19/21 ,  G01S19/24 ,  G01S19/30 ,  G01S19/37

摘要： Systems and methods are provided for a correlator system. The system includes a plurality of numerically controlled oscillators and a multiplier configured to receive an input stream representing a received signal. A carrier multiplexer is configured to select between respective outputs of at least two of the plurality of numerically controlled oscillators and provide the selected output to the multiplier. A code generator is configured to provide a replica code. A delay component is configured to provide a delayed code from the replica code. A code multiplexer is configured to selectively provide each of the delayed code and the replica code to the multiplier.

公开(公告)号：EP2743715A1

公开(公告)日：2014-06-18

申请号：EP13194793.9

申请日：2013-11-28

申请人： Northrop Grumman Guidance and Electronics Company, Inc.

发明人： Larsen, Michael S. ,  Griffith, Robert C. ,  Bulatowicz, Michael D. ,  Clark, Philip R.

IPC分类号： G01R33/26

CPC分类号： G01R33/26 ,  G01R33/032 ,  G01R33/24 ,  G01R33/443 ,  G01R33/60

摘要： One embodiment of the invention includes a magnetometer system. The system includes a sensor cell comprising alkali metal particles and a probe laser configured to provide a probe beam through the sensor cell. The system also includes a detection system configured to implement nuclear magnetic resonance (NMR) detection of a vector magnitude of an external magnetic field in a first of three orthogonal axes based on characteristics of the probe beam passing through the sensor cell and to implement electron paramagnetic resonance (EPR) detection of a vector magnitude of the external magnetic field in a second and a third of the three orthogonal axes based on the characteristics of the probe beam passing through the sensor cell. The system further includes a controller configured to calculate a scalar magnitude of the external magnetic field based on the magnitude of the external magnetic field in each of the three orthogonal axes.

摘要翻译： 本发明的一个实施例包括磁力计系统。 该系统包括包含碱金属颗粒的传感器单元和配置成提供通过传感器单元的探针束的探针激光器。 该系统还包括检测系统，其被配置为基于通过传感器单元的探测光束的特性来实现三个正交轴中的第一个中的外部磁场的矢量幅值的核磁共振（NMR）检测，并实现电子顺磁性 基于通过传感器单元的探测光束的特性，在三个正交轴的第二和第三个中的外部磁场的矢量幅度的共振（EPR）检测。 该系统还包括控制器，其被配置为基于三个正交轴中的每一个中的外部磁场的大小来计算外部磁场的标量值。

公开(公告)号：EP2733461A2

公开(公告)日：2014-05-21

申请号：EP13191755.1

申请日：2013-11-06

申请人： Northrop Grumman Guidance and Electronics Company, Inc.

发明人： Tazartes, Daniel A.

IPC分类号： G01C19/5776

摘要： A system is provided for controlling the amplitude of a vibrating resonant sensor through a drive signal applied to the resonator. The system comprises a controller that provides the drive signal to a forcer coupled to the resonator to excite the resonator into vibration at its resonant frequency. The system further comprises a buffer having an input node that receives charge of a pickoff capacitor of the resonator that is a measure of the resonator vibration and a current reference waveform. The buffer provides an output that is a difference signal that represents an error of the resonator vibration that corresponds to a difference between the measured resonator vibration and the current reference waveform, wherein the controller adjusts the drive signal in order to null the difference signal.

摘要翻译： 提供一种用于通过施加到谐振器的驱动信号来控制振动谐振传感器的振幅的系统。 该系统包括控制器，该控制器将驱动信号提供给耦合到谐振器的振荡器，以将谐振器激发到其谐振频率处的振动。 该系统还包括具有输入节点的缓冲器，该输入节点接收作为谐振器振动和电流参考波形的量度的谐振器的检测电容器的电荷。 缓冲器提供一个输出，其是表示谐振器振动的误差的差分信号，其对应于所测量的谐振器振动和电流参考波形之间的差异，其中控制器调节驱动信号以使差分信号为零。

公开(公告)号：EP1752735B1

公开(公告)日：2014-03-05

申请号：EP06254170.1

申请日：2006-08-08

申请人： Northrop Grumman Guidance and Electronics Company, Inc.

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

IPC分类号： G01C19/5656

CPC分类号： G01C19/5649

公开(公告)号：EP2663883A1

公开(公告)日：2013-11-20

申请号：EP12734643.5

申请日：2012-01-13

申请人： Northrop Grumman Guidance and Electronics Company, Inc.

发明人： LARSEN, Michael, S. ,  GRIFFITH, Robert ,  BULATOWICZ, Michael, D. ,  CLARK, Philip, R.

IPC分类号： G01V3/00

CPC分类号： G01R33/0041 ,  G01C19/62 ,  G01R33/1284 ,  G01R33/26

摘要： One embodiment of the invention includes an atomic sensing system. The system includes an atomic sensing device configured to generate an output signal along an output axis in response to a plurality of control parameters. The system also includes a signal generator configured to apply a reference signal to a cross-axis that is approximately orthogonal to the output axis. The system also includes a phase measurement system configured to demodulate the output signal relative to the reference signal to measure a relative phase alignment between the output axis and a physical axis of the atomic sensing device based on the reference signal.

摘要翻译： 本发明的一个实施例包括原子感测系统。 该系统包括原子感测装置，其被配置为响应于多个控制参数沿着输出轴产生输出信号。 该系统还包括信号发生器，被配置为将参考信号施加到大致正交于输出轴的交叉轴。 该系统还包括相位测量系统，其配置为相对于参考信号解调输出信号，以基于参考信号测量原子感测装置的输出轴和物理轴之间的相对相位对准。