Dither motor apparatus with pickoff embedded drives for ring laser gyroscope

    公开(公告)号:US11852483B1

    公开(公告)日:2023-12-26

    申请号:US17886759

    申请日:2022-08-12

    IPC分类号: G01C19/66 H02N2/12

    CPC分类号: G01C19/664 H02N2/12

    摘要: Drive-embedded dither pickoff embodiments for a dither motor of a ring laser gyroscope are disclosed. In one embodiment, an apparatus comprises a dither motor comprising an outer rim; a hub section; and a plurality of reeds that couple the hub section with the outer rim. A first pickoff embedded drive transducer is mounted on a first side of at least one reed. The first pickoff embedded drive transducer includes a first pickoff section, and a first drive section that is separated from the first pickoff section by a first insulative gap. A second pickoff embedded drive transducer is mounted on a second side of the at least one reed in a back-to-back relationship with the first pickoff embedded drive transducer. The second pickoff embedded drive transducer includes a second pickoff section, and a second drive section that is separated from the second pickoff section by a second insulative gap.

    ELECTROMAGNETIC LEVITATION TRAIN-TRACK SYSTEM AND LEVITATION ELECTROMAGNET

    公开(公告)号:US20230406115A1

    公开(公告)日:2023-12-21

    申请号:US17766486

    申请日:2020-10-09

    发明人: ZHONGCHEN LIU

    IPC分类号: B60L13/04 H02N15/00 E01B25/30

    摘要: The present disclosure provides an electromagnetic levitation train-track system. Tracks are arranged on two sides of a roadbed or track beams, and a magnetic levitation train runs on the tracks. The system includes a traction guide electromagnet horizontally arranged on supporting arms on two sides of the magnetic levitation train, a linear motor stator horizontally arranged at a relative position on the track, the linear motor stator and the traction guide electromagnet horizontally arranged in the magnetic pole directions, a core linear motor formed by the linear motor stator and the traction guide electromagnet at a certain magnetic gap, and an E-shaped cross section levitation electromagnet and a gap sensor arranged at the bottom of the magnetic levitation train and levitated below an armature plate horizontally arranged at the bottom of the track.

    MEMS beam structure and mems vibration-driven energy harvesting element

    公开(公告)号:US11848627B2

    公开(公告)日:2023-12-19

    申请号:US17423051

    申请日:2020-01-14

    发明人: Hisayuki Ashizawa

    IPC分类号: B81B7/00 B81B3/00 H02N1/08

    CPC分类号: H02N1/08 B81B2203/019

    摘要: This MEMS beam structure that elastically supports a movable section displaced in a first direction includes: a first beam section and a second beam section extending in a second direction orthogonal to the first direction; and a linking section that connects the tip of the first beam section and the tip of the second beam section that is connected to the movable section, wherein the first beam section and the second beam section each have a shape as a beam of uniform strength, and the beam section root of the second beam section is displaced relatively in the first direction with respect to the beam section root of the first beam section according to the displacement of the movable section in the first direction.

    Electrostatic actuator
    104.
    发明授权

    公开(公告)号:US11848625B2

    公开(公告)日:2023-12-19

    申请号:US17619328

    申请日:2020-06-17

    申请人: STRAWB Inc.

    IPC分类号: H02N1/08 H02N1/00

    CPC分类号: H02N1/002 H02N1/08

    摘要: The present invention is directed to providing an electrostatic actuator that can generate a large electrostatic force even if composed of a ribbon-shaped electrode film.
    In an electrostatic actuator 10, 20 including a ribbon-shaped first electrode film 11 and a ribbon-shaped second electrode film 12, a plurality of first electrodes 1 formed of the first electrode film 11 and a plurality of second electrodes 2 formed of the second electrode film 12 are folded and laminated between one end 13 and the other end 14 of the electrostatic actuator 10, 20, and the plurality of first electrodes 1 include a pair of end electrodes 1a that are adjacent to each other in a direction in which the first electrode film 11 extends in a ribbon shape and are respectively positioned at the one end 13 and the other end 14 when laminated and at least one intermediate electrode 1b that is positioned between the end electrodes 1a when laminated.

    PIEZOELECTRIC VIBRATION ENERGY HARVESTER AND DESIGN METHOD THEREOF

    公开(公告)号:US20230403937A1

    公开(公告)日:2023-12-14

    申请号:US18333569

    申请日:2023-06-13

    摘要: A piezoelectric vibration energy harvester includes: a first support plate, a second support plate, a piezoelectric bimorph cantilever, a rolling part, a printing raceway, a preloading spring and a bottom plate, the first and second support plates are vertically disposed on the bottom plate, two ends of the piezoelectric bimorph cantilever are respectively connected with the first support plate and the rolling part, an end of the preloading spring is fixed on the second support plate, another end of the preloading spring is movably connected with a back surface of the printing raceway, and a surface opposite to the back surface of the printing raceway is in contact with and coupled with the rolling part. The printing raceway can be obtained by programming the number and initial positions of static equilibrium points, and a multi-stable piezoelectric energy harvester with symmetric or asymmetric potential energy well can be realized.

    Vibrating actuator having contact part with high abrasion resistance

    公开(公告)号:US11844277B2

    公开(公告)日:2023-12-12

    申请号:US17860006

    申请日:2022-07-07

    摘要: A vibrating actuator includes a contact body and a vibrating body that vibrates, has an energy conversion element, and has an elastic body in contact with the contact body to move relative to each other from the vibration. The contact body has a base part, a thin plate part, a support part, and a friction member. The thin plate part extends from the base part toward an annular center axis of the base part and the support part is disposed at an end of the thin plate part. The friction member is disposed to the support part as a member separate from the support part and in contact with the elastic body. Density of the friction member is higher than density of the thin plate part. A weight ratio of the thin plate part to a total weight of the friction member and the support part is 0.5 to 1.5.

    SYSTEMS AND METHODS OF HARVESTING ENERGY USING SHOE INSERTS

    公开(公告)号:US20230396190A1

    公开(公告)日:2023-12-07

    申请号:US18169357

    申请日:2023-02-15

    申请人: Lino E. Marrero

    发明人: Lino E. Marrero

    IPC分类号: H02N2/18 H02J7/00 A43B17/00

    CPC分类号: H02N2/18 H02J7/0042 A43B17/00

    摘要: A method of harvesting energy that includes providing an insert for a shoe, receiving a mechanical signal by one or more of at least two electromechanical transducers disposed along opposite surfaces of the insert, and converting the mechanical signal into an electrical signal. The method further includes converting the electrical signal from an alternating current to a direct current and discharging the direct current into a power bank when a bridge circuit of the insert is electrically coupled to the power bank.

    Multilayered Microhydraulic Actuators
    109.
    发明公开

    公开(公告)号:US20230396188A1

    公开(公告)日:2023-12-07

    申请号:US18451358

    申请日:2023-08-17

    IPC分类号: H02N1/00

    CPC分类号: H02N1/004 H02N1/00

    摘要: An actuator with a stack of thin layers operates by electrowetting droplets between the layers. The actuator includes a first layer structure and a second layer structure positioned adjacent to the first layer structure. One or more liquid droplets are pinned to one of the layers and are positioned between the layers. The other layer includes electrodes. When the electrodes are energized, they electrostatically attract the liquid droplets to create relative motion between the two layers.

    DRIVE ELEMENT AND LIGHT DEFLECTION ELEMENT
    110.
    发明公开

    公开(公告)号:US20230393386A1

    公开(公告)日:2023-12-07

    申请号:US18235708

    申请日:2023-08-18

    发明人: Kensuke MIHARA

    IPC分类号: G02B26/10 H02N2/12

    CPC分类号: G02B26/10 H02N2/12

    摘要: A drive element includes: a pair of drive parts placed so as to be aligned in one direction; a movable part placed between the pair of drive parts; a pair of support parts placed such that the pair of drive parts and the movable part are interposed therebetween; a pair of connection parts connecting the pair of support parts to the movable part; and a fixing part connected to at least each of the pair of drive parts in an alignment direction of the pair of drive parts. Both end portions of the pair of support parts are connected to the pair of drive parts, respectively, and gaps each having a predetermined length are provided between the pair of support parts and the pair of drive parts so as to extend in the alignment direction of the pair of drive parts.