Active control stewart vibration damping platform based on magnetic transmission

    公开(公告)号:US11927235B2

    公开(公告)日:2024-03-12

    申请号:US18135028

    申请日:2023-04-14

    IPC分类号: F16F15/00

    摘要: Disclosed is an active control Stewart vibration damping platform, including a load-bearing platform, a base, and six telescopic rods. Each telescopic rod includes a driving motor, a rotating shaft, a sleeve, and a moving rod. One end, away from the driving motor, of the rotating shaft is provided with a cylindrical cavity, one end of the moving rod penetrates through the cylindrical cavity, and the sleeve is sleeved outside the rotating shaft. The rotating shaft is in running fit with the sleeve through a first bearing, and the moving rod is in sliding fit with the sleeve through a second bearing. The moving rod and the rotating shaft are respectively provided with a spiral permanent magnet. The spiral permanent magnet on the rotating shaft can drive the moving rod to move in an axial direction of the rotating shaft through the spiral permanent magnet on the moving rod when rotating.

    Display screen or portion thereof with graphical user interface

    公开(公告)号:USD987678S1

    公开(公告)日:2023-05-30

    申请号:US29780039

    申请日:2021-04-22

    申请人: TD IP HOLDCO, LLC

    摘要: A portion of the disclosure of this patent document contains material which is subject to copyright protection. The copyright owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure, as it appears in the Patent and Trademark Office patent file or records, but otherwise reserves all copyright rights whatsoever.
    FIGURE is a front view of a display screen or portion thereof with graphical user interface showing my design.
    The broken lines shown represent unclaimed subject matter and form no part of the claimed design. The outer broken line rectangle showing the display screen or portion thereof, and all other broken lines showing portions of the graphical user interface, illustrate portions of the article and form no part of the claimed design.

    Doped perovskite having improved stability, and solar cells made thereof

    公开(公告)号:US11437595B2

    公开(公告)日:2022-09-06

    申请号:US16507724

    申请日:2019-07-10

    发明人: Tao Xu

    摘要: A light-harvesting material comprises a perovskite absorber doped with a metal chalcogenide. The light-harvesting material may be used in a photovoltaic device, comprising (1) a first conductive layer, (2) an optional blocking layer, on the first conductive layer, (3) a semiconductor layer, on the first conductive layer, (4) a light-harvesting material, on the semiconductor layer, (5) a hole transport material, on the light-harvesting material, and (6) a second conductive layer, on the hole transport material.