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公开(公告)号:US10520331B2
公开(公告)日:2019-12-31
申请号:US15906177
申请日:2018-02-27
Applicant: THE CHARLES STARK DRAPER LABORATORY, INC.
Inventor: Marc Steven Weinberg , Ralph Cohn , Eugene H. Cook
IPC: G01C25/00 , G01C19/5776 , G01C19/5684
Abstract: According to one aspect, embodiments herein provide a whole angle gyroscope comprising a central point, at least one mass arranged symmetrically about the central point, a plurality of transducers, each configured to perform at least one of driving and sensing motion of the at least one mass, and a processor coupled to the plurality of transducers, the processor configured to operate the plurality of transducers to drive the at least one mass in at least a first vibratory mode and a second vibratory mode, identify a rate dead zone of the whole angle gyroscope, and operate the plurality of transducers to apply a force to the at least one mass to reduce the identified rate dead zone of the whole angle gyroscope.
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公开(公告)号:US20180033670A1
公开(公告)日:2018-02-01
申请号:US15727195
申请日:2017-10-06
Applicant: THE CHARLES STARK DRAPER LABORATORY, INC.
Inventor: Eugene H. Cook , Amy Duwel , David J. Carter , Gayatri E. Perlin
IPC: H01L21/683 , H01L21/78 , H01L21/304 , H01L21/3065 , H01L23/00 , G06K19/073
CPC classification number: H01L21/6835 , G06K19/07381 , H01L21/304 , H01L21/3065 , H01L21/78 , H01L23/57 , H01L2221/68327
Abstract: A method of fabricating ultra-thin semiconductor devices includes forming an array of semiconductor dielets mechanically suspended on a frame with at least one tether connecting each semiconductor dielet of the array of semiconductor dielets to the frame.
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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:US20230076161A1
公开(公告)日:2023-03-09
申请号:US17980045
申请日:2022-11-03
Applicant: The Charles Stark Draper Laboratory, Inc.
Inventor: Eugene H. Cook , Jonathan J. Bernstein , Mirela G. Bancu , Marc Steven Weinberg , William Sawyer
IPC: G01C19/5621 , B81C1/00 , B81B3/00 , G01C19/5628
Abstract: Methods for fabricating MEMS tuning fork gyroscope sensor system using silicon wafers. This provides the possibly to avoid glass. The sense plates can be formed in a device layer of a silicon on insulator (SOI) wafer or in a deposited polysilicon layer in a few examples.
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公开(公告)号:US20210157067A1
公开(公告)日:2021-05-27
申请号:US16697821
申请日:2019-11-27
Applicant: The Charles Stark Draper Laboratory, Inc.
Inventor: Michael G. Moebius , Steven J. Spector , Eugene H. Cook , Sean P. O'Connor
Abstract: An optical system includes a laser source that provides a beam of light, a photonic integrated circuit (PIC) with an input aperture, and an alignment fixture that has at least one actuator. The alignment fixture may be mounted on the PIC. The optical system is aligned such that the beam of light travels from the laser source to the alignment fixture and from the alignment fixture to the input aperture of the PIC. The alignment fixture can move in at least one direction upon actuation of the at least one actuator to adjust coupling between the laser source and the PIC. The at least one actuator may be a micro-electro-mechanical system (MEMS) structure actuated by an electrical signal.
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公开(公告)号:US10791779B2
公开(公告)日:2020-10-06
申请号:US15534907
申请日:2015-12-09
Applicant: THE CHARLES STARK DRAPER LABORATORY, INC.
Inventor: David J. Carter , Tirunelveli S. Sriram , Parshant Kumar , Clayton Morris , William W. McFarland , Eugene H. Cook , John LeBlanc , Alla Gimbel
IPC: A41D19/015 , B29C45/37 , B29C33/42 , B29C37/00 , B29C39/02 , B29C39/10 , B29D99/00 , B29C33/38 , B29C33/58 , B29C39/26 , B29L31/48 , B29C59/02 , B29K75/00 , B29K105/00
Abstract: A mold for casting a micro-scale structure includes an upper surface including a first cavity having a first depth. A negative pattern for an array of micro-scale structures is defined in a surface of the first cavity. The mold includes at least one second cavity having a second depth defined in the cavity outside of the negative pattern for the array of micro-scale structures. The at least one second cavity defines a negative pattern for a standoff of the micro-scale structure. A fabric retaining frame is disposed in the first cavity.
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公开(公告)号:US20180264687A1
公开(公告)日:2018-09-20
申请号:US15534918
申请日:2015-12-09
Applicant: David J. CARTER , Tirunelveli S. SRIRAM , Parshant KUMAR , Clayton MORRIS , William W. MCFARLAND , Eugene H. COOK , John LE BLANC , Alla EPSHTEYN , W. Dennis SLAFER , B. Diane MARTIN , THE CHARLES STARK DRAPER LABORATORY, INC. , MICROCONTINUUM, INC.
Inventor: David J. Carter , Tirunelveli S. Sriram , Parshant Kumar , Clayton Morris , William W. McFarland , Eugene H. Cook , John LeBlanc , Alla Epshteyn , W. Dennis Slafer , B. Diane Martin
CPC classification number: B29C33/307 , B23P15/00 , B23P15/24 , B29C33/3842 , B29C33/42 , B29C33/424 , B29C33/68 , B29C39/026 , B29K2905/00 , B81C99/0085 , C25D1/00 , C25D1/10 , C25D1/22 , C25D5/34
Abstract: A method of forming a metal mold for casting a micro-scale dry adhesive structure includes securing a master patch of material including a micro-scale dry adhesive structure on a plating fixture, electroforming the metal mold on the patch of material, and removing the metal mold from the plating fixture and patch of material.
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公开(公告)号:US20180012786A1
公开(公告)日:2018-01-11
申请号:US15207185
申请日:2016-07-11
Applicant: THE CHARLES STARK DRAPER LABORATORY, INC.
Inventor: Eugene H. Cook , Amy Duwel , David J. Carter , Gayatri E. Perlin
IPC: H01L21/683 , H01L21/304 , G06K19/073 , H01L21/3065 , H01L21/78 , H01L23/00
CPC classification number: H01L21/6835 , G06K19/07381 , H01L21/304 , H01L21/3065 , H01L21/78 , H01L23/57 , H01L2221/68327
Abstract: A method of fabricating ultra-thin semiconductor devices includes forming an array of semiconductor dielets mechanically suspended on a frame with at least one tether connecting each semiconductor dielet of the array of semiconductor dielets to the frame.
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公开(公告)号:US20170361508A1
公开(公告)日:2017-12-21
申请号:US15534827
申请日:2015-12-09
Applicant: THE CHARLES STARK DRAPER LABORATORY, INC.
Inventor: David J. Carter , Tirunelveli S. Sriram , Parshant Kumar , Clayton Morris , William W. McFarland , Eugene H. Cook , John LeBlanc , Alla Gimbel
CPC classification number: A41D19/01564 , B29C33/3842 , B29C33/424 , B29C33/58 , B29C37/0053 , B29C39/026 , B29C39/10 , B29C39/26 , B29C45/372 , B29C2059/023 , B29D99/0067 , B29K2075/00 , B29K2105/0097 , B29K2863/00 , B29K2891/00 , B29L2031/4864
Abstract: A mold for casting a micro-scale dry adhesive structure includes an upper surface including a first cavity having a first depth, a negative pattern for an array of micro-scale structures defined in a surface of the first cavity, and at least one second cavity having a second depth defined in the cavity outside of the negative pattern for the array of micro-scale structures, the at least one second cavity defining a negative pattern for a standoff of the micro-scale dry adhesive structure.
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