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公开(公告)号：US10113873B2
公开(公告)日：2018-10-30
申请号：US15160421
申请日：2016-05-20
Applicant: THE CHARLES STARK DRAPER LABORATORY, INC.
Inventor： Eugene H. Cook , Marc S. Weinberg , Jonathan J. Bernstein
IPC: G01C19/574 , G01C19/5684 , G01C19/5726 , G01C19/5733
Abstract: According to one aspect, embodiments herein provide a gyroscope comprising a central anchor, a plurality of internal flexures, a plurality of masses, each mass coupled to the central anchor via at least one of the plurality of internal flexures and configured to translate in a plane of the gyroscope, and a plurality of mass-to-mass couplers, each mass-to-mass coupler coupled between two adjacent masses of the plurality of masses, and a plurality of transducers, each configured to perform at least one of driving and sensing motion of a corresponding one of the plurality of masses, wherein the plurality of transducers is configured to drive the plurality of masses in at least a first vibratory mode and a second vibratory mode.
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公开(公告)号：US20170102263A1
公开(公告)日：2017-04-13
申请号：US15288843
申请日：2016-10-07
Inventor： Jonathan J. Bernstein , Marc S. Weinberg , Amy Duwel , Paul A. Ward , Nicol E. McGruer , Matteo Rinaldi , Eugene H. Cook
CPC classification number: G01P15/135 , H01H1/0036 , H01H35/144 , H01H2001/0063 , H01H2001/0078 , H01H2001/0084
Abstract: An environmental physical sensor is provided that includes a power input terminal, a sensor output terminal, and a resonant switch. The resonant switch includes a mechanical element that is responsive to an environmental stimulus and is coupled to an electrical switch. The electrical switch is operable between an open position and a closed position and electrically connects the power input terminal to the sensor output terminal when in the closed position. The mechanical element is configured to intermittently actuate the electrical switch into the closed position responsive to the environmental stimulus.
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公开(公告)号：US10585150B2
公开(公告)日：2020-03-10
申请号：US15286251
申请日：2016-10-05
Applicant: THE CHARLES STARK DRAPER LABORATORY, INC.
Inventor： James A. Bickford , Marc S. Weinberg , Jonathan J. Bernstein , John Le Blanc , Eugene H. Cook
IPC: G01R33/028 , G01L3/00 , G01L1/12 , G01R33/00 , G01K7/36 , G01R33/038 , G01K7/32
Abstract: Aspects and embodiments are generally directed to magnetic field detector systems and methods. In one example, a magnetic field detector system includes a proof-mass including a magnetic dipole source, a plurality of supports, each individual support of the plurality supports being coupled to the proof-mass, a plurality of sensors, each individual sensor of the plurality of sensors positioned to measure a resonant frequency of a corresponding support of the plurality of supports, and a controller coupled to each individual sensor of the plurality of sensors, the controller configured to measure a characteristic of a magnetic field imparted on the proof-mass based on at least a first resonant frequency of the measured resonant frequencies.
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公开(公告)号：US10564200B2
公开(公告)日：2020-02-18
申请号：US15286163
申请日：2016-10-05
Applicant: THE CHARLES STARK DRAPER LABORATORY, INC.
IPC: G01R29/08 , A61B5/0478 , A61B5/04
Abstract: Aspects and embodiments are generally directed to electric field detector systems and methods. In one example, an electric field detector system includes a proof-mass including a source of concentrated charge, a plurality of supports, each individual support of the plurality supports being coupled to the proof-mass, a plurality of sensors, each individual sensor of the plurality of sensors positioned to measure a resonant frequency of a corresponding support of the plurality of supports, and a controller coupled to each individual sensor of the plurality of sensors, the controller configured to measure a characteristic of an electric field imparted on the proof-mass based on at least a first resonant frequency of the measured resonant frequencies.
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公开(公告)号：US20170097382A1
公开(公告)日：2017-04-06
申请号：US15286163
申请日：2016-10-05
Applicant: THE CHARLES STARK DRAPER LABORATORY, INC.
IPC: G01R29/08 , A61B5/0478
Abstract: Aspects and embodiments are generally directed to electric field detector systems and methods. In one example, an electric field detector system includes a proof-mass including a source of concentrated charge, a plurality of supports, each individual support of the plurality supports being coupled to the proof-mass, a plurality of sensors, each individual sensor of the plurality of sensors positioned to measure a resonant frequency of a corresponding support of the plurality of supports, and a controller coupled to each individual sensor of the plurality of sensors, the controller configured to measure a characteristic of an electric field imparted on the proof-mass based on at least a first resonant frequency of the measured resonant frequencies.
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Patent Agency Ranking
公开(公告)号：US20160091339A1
公开(公告)日：2016-03-31
申请号：US14501083
申请日：2014-09-30
Applicant: THE CHARLES STARK DRAPER LABORATORY, INC.
Inventor： Marc S. Weinberg , Eugene H. Cook , Stephen L. Finberg , Murali V. Chaparala , Thayne R. Henry , Thomas A. Campbell
CPC classification number: G01C25/00 , G01C19/56 , G01C19/5776 , G01C25/005
Abstract: Methods and apparatus for calibrating a gyroscope without rotating the instrument. In one example, a calibration method includes operating the gyroscope in a self-oscillation loop to generate x-axis and y-axis drive signals, adding forcing signals to the x-axis and y-axis drive signals to produce pick-off x-axis and y-axis signals, measuring the pick-off x-axis and y-axis signals to produce measurement data, determining a relative phase between the pick-off x-axis and y-axis signals, based on the measurement data and the relative phase, estimating parameters of the gyroscope, based on the measurement data and the estimated parameters, calculating estimated position signals to calibrate the gyroscope.
Abstract translation: 不旋转仪器校准陀螺仪的方法和设备。 在一个示例中，校准方法包括在自振荡环路中操作陀螺仪以产生x轴和y轴驱动信号，将强制信号添加到x轴和y轴驱动信号以产生拾取x- 轴和y轴信号，测量拾取x轴和y轴信号以产生测量数据，基于测量数据确定拾取x轴和y轴信号之间的相对相位， 相对相位，基于测量数据和估计参数来估计陀螺仪的参数，计算估计位置信号以校准陀螺仪。
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公开(公告)号：US20150246808A1
公开(公告)日：2015-09-03
申请号：US14310247
申请日：2014-06-20
Applicant: THE CHARLES STARK DRAPER LABORATORY, INC.
Inventor： David Carter , Marc S. Weinberg , Eugene H. Cook , Peter Miraglia
CPC classification number: B81C1/00198 , B81B2201/0242 , B81B2201/034 , F04B19/006 , F04D13/00 , F04D25/00 , F16C33/04 , G01C19/06 , Y10T74/12
Abstract: In one embodiment, a rotary device includes a multiwall nanotube that extends substantially perpendicularly from a substrate. A rotor may be coupled to an outer wall of the multiwall nanotube, be spaced apart from the substrate, and be free to rotate around an elongate axis of the multiwall nanotube.
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公开(公告)号：US10859620B2
公开(公告)日：2020-12-08
申请号：US15944106
申请日：2018-04-03
Applicant: THE CHARLES STARK DRAPER LABORATORY, INC.
Inventor： James A. Bickford , Stephanie Lynne Golmon , Paul A. Ward , William D. Sawyer , Marc S. Weinberg , John J. LeBlanc , Louis Kratchman , James S. Pringle, Jr. , Daniel Freeman , Amy Duwel , Max Lindsay Turnquist , Ronald Steven McNabb, Jr. , William A. Lenk
IPC: G01R29/12 , G01R1/04 , G01R33/12 , G01R29/08 , G01R27/26 , A61B5/04 , A61B5/0476 , G01R29/10 , A61B5/0402
Abstract: Aspects are generally directed to a compact and low-noise electric field detector, methods of operation, and methods of production thereof. In one example, an electric field detector includes a proof mass, a source of concentrated charge coupled to the proof mass, and a substrate having a substrate offset space defined therein, the proof mass being suspended above the substrate offset space. The electric field detector further includes a sense electrode disposed on the substrate within the substrate offset space and proximate the proof mass, the sense electrode being configured to measure a change in capacitance relative to the proof mass from movement of the proof mass in response to a received electric field at the source of concentrated charge. The electric field detector includes a control circuit coupled to the sense electrode and configured to determine a characteristic of the electric field based on the measured change in capacitance.
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公开(公告)号：US10200036B1
公开(公告)日：2019-02-05
申请号：US15175884
申请日：2016-06-07
Applicant: THE CHARLES STARK DRAPER LABORATORY, INC.
Inventor： Paul A. Ward , James S. Pringle , Marc S. Weinberg , Warner G. Harrison
Abstract: Provided is a Precision Voltage Reference (PVR). In one example, the PVR includes a resonator having an oscillation frequency, the resonator including a first proof-mass, a first forcer located adjacent a first side of the first proof-mass, and a second forcer located adjacent a second side of the first proof-mass. The PVR may include control circuitry configured to generate a reference voltage based on the oscillation frequency of the resonator, at least one converter configured to receive the reference voltage from the control circuitry, provide a first bias voltage to the first forcer based on the reference voltage, provide a second bias voltage to the second forcer based on the reference voltage, and periodically alter a polarity of the first and second bias voltages to drive the oscillation frequency to match a reference frequency, and an output configured to provide the reference voltage as a voltage reference signal.
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公开(公告)号：US09224435B2
公开(公告)日：2015-12-29
申请号：US13973143
申请日：2013-08-22
Applicant: THE CHARLES STARK DRAPER LABORATORY, INC.
Inventor： Paul A. Ward , James S. Pringle , Marc S. Weinberg
Abstract: According to one aspect, embodiments herein provide a PVR comprising a resonator having an oscillation frequency, the resonator comprising at least one proof-mass, a mechanical reference, at least one drive plate located adjacent a first side of the at least one proof-mass, and at least one sense plate located adjacent a second side of the at least one proof-mass, a voltage source coupled to the drive and sense plates, a reference oscillator configured to provide a reference signal having a reference frequency to the voltage source; and an output, wherein the voltage source is configured to provide a bias voltage signal to the at least one drive and at least one sense plates of the resonator to drive the oscillation frequency of the resonator to match the reference frequency, and wherein the bias voltage signal is also provided to the output of the PVR as a voltage reference signal.
Abstract translation: 根据一个方面，本文的实施例提供了一种包括具有振荡频率的谐振器的PVR，所述谐振器包括至少一个校验块，机械参考，至少一个驱动板，其邻近所述至少一个校准质量块的第一侧 以及至少一个位于所述至少一个校验块的第二侧附近的检测板，耦合到所述驱动和检测板的电压源，被配置为向所述电压源提供具有参考频率的参考信号的参考振荡器; 以及输出，其中所述电压源被配置为向所述至少一个驱动器和所述谐振器的至少一个感测板提供偏置电压信号以驱动所述谐振器的振荡频率以匹配所述参考频率，并且其中所述偏置电压 信号也作为电压参考信号提供给PVR的输出。
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