POWER-GENERATING MAGNETOSTRICTIVE ELEMENT AND MAGNETOSTRICTIVE POWER GENERATION DEVICE

    公开(公告)号:US20240030837A1

    公开(公告)日:2024-01-25

    申请号:US18255881

    申请日:2021-12-02

    CPC classification number: H02N2/186 H10N35/101 H10N35/85

    Abstract: The task of the present invention is to provide a magnetostrictive power generation device that is low cost and excellent in durability and can achieve a power generation amount equal to or exceeding those of conventional magnetostrictive power generation devices. The present invention provides a power-generating magnetostrictive element that is formed from a laminate comprising at least one electromagnetic steel sheet layer which comprises at least one electromagnetic steel sheet and satisfies at least one of the following Condition A and Condition B. Condition A: The at least one electromagnetic steel sheet layer comprises two or more electromagnetic sheets, and the two or more electromagnetic sheets are bonded to each other through a brazing material part. Condition B: The laminate further comprises at least one elastic material layer, and the at least one electromagnetic steel sheet layer is bonded to the elastic material layer through a brazing material part.

    Magnetic sensor including a multilayer structure comprising a piezomagnetic component, a magnetostrictive component and a piezoelectric component

    公开(公告)号:US11698420B2

    公开(公告)日:2023-07-11

    申请号:US17690069

    申请日:2022-03-09

    CPC classification number: G01R33/02 H10N35/101 H10N35/85

    Abstract: A magnetic sensor includes a piezomagnetic component which includes a first piezomagnetic element and a second piezomagnetic element that are arranged opposite to each other, a magnetostrictive component which includes a first magnetostrictive element and a second magnetostrictive element arranged opposite to each other on the same side of the first piezomagnetic element and the second piezomagnetic element, respectively, and a piezoelectric component which includes a first piezoelectric element deposited underneath the first piezomagnetic element, a second piezoelectric element deposited underneath the second piezomagnetic element, a third piezoelectric element deposited underneath the first magnetostrictive element, and a fourth piezoelectric element deposited underneath the second magnetostrictive element. The first piezoelectric element and the second piezoelectric element are electrically connected to a power supply circuit, and produce first deformation, which is applied to the first piezomagnetic element and the second piezomagnetic element to produce an alternating magnetic field.

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