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    Gradient force disk resonating gyroscope
    32.
    发明授权
    Gradient force disk resonating gyroscope 有权

    公开(公告)号：US10240925B1

    公开(公告)日：2019-03-26

    申请号：US15083190

    申请日：2016-03-28

    Applicant: HRL Laboratories, LLC

    Inventor： Raviv Perahia ,  Jonathan Lake ,  Richard J. Joyce ,  Logan D. Sorenson

    IPC: G01C19/5684 ,  G01C25/00

    Abstract: A gyroscope includes a vibratory structure, and a control mechanism including at least a first electrode, and at least a second electrode adjacent the first electrode, wherein the vibratory structure is separated from the control mechanism by a gap, wherein to drive a vibration in the vibratory structure, the control mechanism is configured to apply an alternating electrical voltage between the first electrode and the second electrode, and wherein to sense motion in the vibratory structure, the control mechanism is configured to apply a direct current voltage bias between the first electrode and the second electrode.

    MEMS-BASED SENSOR SUITE
    34.
    发明申请
    MEMS-BASED SENSOR SUITE 审中-公开

    公开(公告)号：US20180238930A1

    公开(公告)日：2018-08-23

    申请号：US15897819

    申请日：2018-02-15

    Applicant: HRL LABORATORIES, LLC

    Inventor： Hung Nguyen ,  David T. Chang ,  Raviv Perahia ,  Logan D. Sorenson

    IPC: G01P15/18 ,  G01P15/14 ,  G01P15/105 ,  G01P15/08

    Abstract: A microelectromechanical (MEMS) sensor suite including a three axis accelerometer including an accelerometer sensor polyhedron having a series of faces, and a series of axial accelerometers on three faces of the series of faces of the accelerometer sensor polyhedron. The MEMS sensor suite also includes a three axis magnetometer including a magnetometer sensor polyhedron having a series of faces, and a series of axial magnetometers on three faces of the series of faces of the magnetometer sensor polyhedron.

    Micro-scale piezoelectric resonating magnetometer
    35.
    发明授权
    Micro-scale piezoelectric resonating magnetometer 有权

    公开(公告)号：US09977097B1

    公开(公告)日：2018-05-22

    申请号：US14628182

    申请日：2015-02-20

    Applicant: HRL Laboratories, LLC

    Inventor： Hung Nguyen ,  Logan D. Sorenson ,  David T. Chang ,  Raviv Perahia ,  Deborah J. Kirby ,  Richard J. Joyce

    IPC: G01R33/028

    CPC classification number: G01R33/0283 ,  G01R33/0286

    Abstract: A magnetometer has a resonating structure which is naturally resonant in at least first and second resonant modes, a resonant frequency of the second mode being at least an order of magnitude greater than a resonant frequency of the first mode, the resonating structure having two sense electrodes disposed on opposing major surfaces of the resonating structure and having a conductive path formed as a loop, the loop being disposed near or at edges of the resonating structure and the two sense electrodes being formed inwardly of the edges of the resonating structure and also inwardly of said loop. First and second oscillators are provided, the first oscillator being coupled to the loop for applying an oscillating current to the loop, the oscillating current having a frequency essentially equal to the resonant frequency of the first mode of the resonating structure, the second oscillator being coupled to said sense electrodes, the second oscillator oscillating with a fundamental frequency corresponding to the resonant frequency of the second mode of the resonating structure, the second oscillator also producing sidebands indicative of the magnetometer sensing an external magnetic field.

    Curved phononic crystal waveguide
    37.
    发明授权
    Curved phononic crystal waveguide 有权

    公开(公告)号：US11244667B1

    公开(公告)日：2022-02-08

    申请号：US16258439

    申请日：2019-01-25

    Applicant: HRL Laboratories, LLC

    Inventor： Raviv Perahia ,  Jeremy Bregman ,  Amit M. Patel ,  Sean M. Meenehan ,  Lian X. Huang ,  Logan D. Sorenson

    IPC: G10K11/28 ,  B06B3/04

    Abstract: A curved phononic waveguide. In some embodiments, the curved phononic waveguide includes a sheet including a plurality of standard reflectors and a plurality of divergent reflectors. Each of the standard reflectors is associated with a respective grid point of a grid defined by a plurality of intersecting lines, each grid point being a respective intersection of two of a plurality of intersecting lines, the grid being locally periodic to within 5%, and having a local grid spacing. Each of the standard reflectors has a center separated from the respective grid point of the standard reflector by at most 1% of the grid spacing. The divergent reflectors define a waveguide among the standard reflectors, each of the divergent reflectors being an absent reflector or a reflector that is smaller than one of the standard reflectors.

    Phononic crystal coupler
    38.
    发明授权
    Phononic crystal coupler 有权

    公开(公告)号：US11100914B1

    公开(公告)日：2021-08-24

    申请号：US16258271

    申请日：2019-01-25

    Applicant: HRL Laboratories, LLC

    Inventor： Raviv Perahia ,  Jeremy Bregman ,  Amit M. Patel ,  Sean M. Meenehan ,  Logan D. Sorenson ,  Lian X. Huang

    IPC: G10K11/00 ,  G10K11/18 ,  A61F11/06

    Abstract: A phononic coupler. In some embodiments, the phononic coupler includes a sheet, including a plurality of standard reflectors, and a plurality of divergent reflectors. The divergent reflectors define, among the standard reflectors, a first waveguide, and a second waveguide. The coupler has a first port, at a first end of the coupler, a second port, at the first end of the coupler, and a third port, at a second end of the coupler. The first waveguide has a first end at the first port. The second waveguide has a first end at the second port, and a second end at the third port. The coupler is configured to couple longitudinal sound waves to both the first port and the second port.

    Alkali source and/or sink using ion-conducting solid electrolyte and intercalation-compound electrode
    39.
    发明授权
    Alkali source and/or sink using ion-conducting solid electrolyte and intercalation-compound electrode 有权

    公开(公告)号：US10775748B1

    公开(公告)日：2020-09-15

    申请号：US16720139

    申请日：2019-12-19

    Applicant: HRL Laboratories, LLC

    Inventor： Christopher S. Roper ,  Adam F. Gross ,  Matthew T. Rakher ,  Logan D. Sorenson ,  John J. Vajo ,  Jason A. Graetz ,  Russell Mott ,  Danny Kim

    IPC: G04F5/14 ,  H01P7/06 ,  H03L7/26 ,  C22B26/10

    Abstract: Some variations provide an alkali metal or alkaline earth metal vapor cell with a solid ionic conductor and intercalable-compound electrodes. The intercalable-compound electrodes are used as efficient sources and/or as sinks for alkali metal or alkaline earth metal atoms, thus enabling electrical control over metal atom content in the vapor cell. Some variations provide a vapor-cell system comprising: a vapor-cell region configured to allow a vapor-cell optical path into a vapor-cell vapor phase; a first electrode; a second electrode electrically isolated from the first electrode, wherein the second electrode contains an intercalable compound intercalated by an element selected from Rb, Cs, Na, K, or Sr; and an ion-conducting layer between the first electrode and the second electrode. The ion-conducting layer is ionically conductive for at least one ionic species selected from Rb+, Cs+, Na+, K+, or Sr2+. The intercalable compound is preferably a carbonaceous material, such as graphite.

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