Sensor and electronic device
    1.
    发明授权

    公开(公告)号:US12019092B2

    公开(公告)日:2024-06-25

    申请号:US17680263

    申请日:2022-02-24

    IPC分类号: G01P15/097 B81B3/00

    摘要: According to one embodiment, a sensor a sensor includes a base, a first support portion fixed to the base, and a first movable portion supported by the first support portion. The first movable portion includes first and second movable base portions, a connecting base portion, first and second movable beams, and first and second movable conductive portions. The first movable beam includes a first beam end portion, a first beam other end portion, and a first beam intermediate portion. The second movable beam includes a second beam end portion, a second beam other end portion, and a second beam intermediate portion. The first movable conductive portion includes a first crossing conductive portion, a first extending conductive portion, and a first other extending conductive portion. The second movable conductive portion includes a second crossing conductive portion, a second extending conductive portion, and a second other extending conductive portion.

    HOME APPLIANCE AND CONTROL METHOD THEREFOR

    公开(公告)号:US20230111114A1

    公开(公告)日:2023-04-13

    申请号:US17787165

    申请日:2020-01-14

    摘要: Proposed is a home appliance which allows a reception space defined therein to be seen from the outside through a viewing window without opening a door. In the home appliance, the viewing window is mounted to a door, and when a user knocks on the door, a vibration detection signal corresponding to vibration generated by the user’s knock is processed so as to accurately determine whether there is the vibration by the knock. Moreover, when the vibration generated by the knock is detected, the inside of the reception space is illuminated such that the inside of the reception space can be seen from the outside through the viewing window. Therefore, the user can see the inside of the reception space by a simple movement even without opening the door.

    RESONANT MICROELECTROMECHANICAL SENSOR WITH IMPROVED OPERATION

    公开(公告)号:US20230072687A1

    公开(公告)日:2023-03-09

    申请号:US17929872

    申请日:2022-09-06

    IPC分类号: G01P15/097

    摘要: A resonant sensor including a support, a proof body suspended from the support and having a resonant frequency ωa, means for measuring a force including at least one resonator of resonant frequency ωrn, said force being applied by the proof body, and a mechanical decoupling structure interposed between the proof body and the resonator, said decoupling structure including a decoupling mass, a first connecting element between the decoupling mass and the proof body, a second connecting element between the decoupling mass and the resonator, the decoupling structure having a main vibration mode whose resonant frequency ωd is such that ωa

    Resonant accelerometer
    6.
    发明授权

    公开(公告)号:US11579166B1

    公开(公告)日:2023-02-14

    申请号:US17698439

    申请日:2022-03-18

    摘要: In certain embodiments, an accelerometer is a microelectromechanical systems (MEMS) device including a proof mass, an anchor located in an opening defined by a body of the proof mass, a spring, a drive electrode, and a sense beam. The spring and the proof mass form a spring system suspended from the anchor. The sense beam oscillates at a particular resonance frequency based on application of a signal to the drive electrode. The MEMS device further includes a support structure coupled to the anchor. The support structure operates as a stress decoupling area and includes a support beam, with the spring corresponding to an end of the support beam that has a reduced thickness. The sense beam has a first end attached to the proof mass and a second end attached to the support beam such that the sense beam is orthogonal to the support beam.

    Resonant accelerometer
    8.
    发明授权

    公开(公告)号:US11307217B1

    公开(公告)日:2022-04-19

    申请号:US16908560

    申请日:2020-06-22

    摘要: Described herein are accelerometers, apparatus and systems incorporating accelerometers, and techniques for controlling sensing operations in an accelerometer. In certain embodiments, an accelerometer is a microelectromechanical systems (MEMS) device including a proof mass, an anchor, a spring between the proof mass and the anchor, a drive electrode, and a sense beam. The anchor is located in an opening defined by a body of the proof mass. The spring and the proof mass form a spring system suspended from the anchor. The sense beam is configured to oscillate at a particular resonance frequency that changes according to a force generated by movement of the proof mass in response to acceleration. In some embodiments, a support structure couples the anchor to the spring and operates as a stress decoupling area that prevents or limits propagation of stress from the anchor to the sense beam and the spring system.

    Resonator including one or more mechanical beams with added mass

    公开(公告)号:US11287441B2

    公开(公告)日:2022-03-29

    申请号:US16796138

    申请日:2020-02-20

    发明人: John Reinke

    IPC分类号: G01P15/097 G01P15/08

    摘要: This disclosure is related to devices, systems, and techniques for determining an acceleration of a vibrating beam accelerometer (VBA). For example, a system includes processing circuitry configured to receive, from a first resonator, one or more electrical signals indicative of a frequency of a first mechanical beam and a frequency of a second mechanical beam, determine, based on the one or more electrical signals, the frequency of the first mechanical beam and the frequency of the second mechanical beam, and calculate, based on the frequency of the first mechanical beam and the frequency of the second mechanical beam, an acceleration of a proof mass assembly.