MUSCLE CONDITION ESTIMATION DEVICE AND METHOD FOR ESTIMATING MUSCLE CONDITION

    公开(公告)号:US20240350057A1

    公开(公告)日:2024-10-24

    申请号:US18686642

    申请日:2022-08-19

    IPC分类号: A61B5/22 A61B5/107 A61B5/389

    CPC分类号: A61B5/22 A61B5/107 A61B5/389

    摘要: An apparatus and method capable of accurately estimating a participant's muscle state are provided. In order to solve this problem, a muscle state estimation device 1 for estimating the state of a participant's muscles is provided. The muscle state estimation device 1 comprises a circumference sensor 2 that measures the circumference of the muscle, a myopotential sensor 3 that measures the electric potential generated by the activity of the muscle and a muscle state estimation unit 4 that calculates the muscle state such that an evaluation function, of which variables are the deviation of the circumference measured by the circumference sensor 2 from the circumference model that defines the relationship between the muscle state and the circumference and the deviation of the electric potential measured by the myopotential sensor 3 from the muscle tension model that defines the relationship between the muscle state and the electric potential, is minimized.

    PLASMA SOURCE, AND ATOMIC CLOCK EMPLOYING PLASMA SOURCE

    公开(公告)号:US20240276626A1

    公开(公告)日:2024-08-15

    申请号:US18568770

    申请日:2022-03-24

    IPC分类号: H05H1/10 G04F5/14 H03L7/26

    CPC分类号: H05H1/10 G04F5/14 H03L7/26

    摘要: A small plasma source that enables highly efficient discharge in an ultra-high vacuum state includes a first magnet, a second magnet arranged so that a second magnetic pole faces the first magnetic pole of the first magnet, a third magnet having the second magnetic pole directed in the same direction as the first magnetic pole of the first magnet and arranged to surround the first magnet, a fourth magnet having the first magnetic pole different from the second magnetic pole facing the second magnetic pole of the third magnet and arranged to surround the second magnet, a first electrode provided on sides of the first magnetic pole of the first magnet and the second magnetic pole of the third magnet, a second electrode facing the first electrode and provided on sides of the second magnetic pole of the second magnet and the first magnetic pole of the fourth magnet, and a third electrode arranged between the first electrode and the second electrode. A value obtained by dividing a shorter distance between a distance between the first magnet and the second magnet and a distance between the third magnet and the fourth magnet by an average value of thicknesses of the first to fourth magnets is 1 or more and 10 or less.