Vibration Sensor And Method For Optimizing A Piezoelectric Drive

    公开(公告)号:US20190376839A1

    公开(公告)日:2019-12-12

    申请号:US16319091

    申请日:2017-07-05

    Abstract: The a vibration sensor comprising a membrane that can be stimulated so as to oscillate by means of a piezoelectric drive, and a mechanical oscillator arranged on the membrane, at least one piezoelectric element of the drive comprising at least one first electrical contact structure on an upper side of the piezoelectric element and at least one second electrical contact structure on a lower side of the piezoelectric element, such that the at least one piezoelectric element is designed so that an active area of the piezoelectric element corresponds to an area of a mechanical deformation of the unidirectional curvature of the membrane, during a pre-defined eigenmode of the mechanical oscillator.

    Energy Supply
    8.
    发明申请
    Energy Supply 审中-公开
    能源供应

    公开(公告)号:US20150244205A1

    公开(公告)日:2015-08-27

    申请号:US14423866

    申请日:2013-10-10

    CPC classification number: H02J7/35 H02J7/0052 H02J7/0054 H02J7/0055 H02J7/0068

    Abstract: The invention is an energy supply for a field device that can be operated at a normal voltage, comprising the first energy supply having variable output voltage for the field device, an energy store, which can be charged by means of a charging circuit, which is arranged between the first energy supply and the energy store, wherein a first state, in which the output voltage is above a predetermined value, the charging circuit is switched in such a way that the field device is operated by means of the first energy supply and the energy store is charged, and in a second state, in which the output voltage is below the predetermined value, the charging circuit is switched in such a way that the field device is supplied by means of the first energy supply and the energy store.

    Abstract translation: 本发明是用于能够在正常电压下操作的现场设备的能量供应,包括具有用于现场设备的可变输出电压的第一能量供应器,能够通过充电电路进行充电的能量存储器 布置在第一能量供应和能量存储之间,其中,其中输出电压高于预定值的第一状态,充电电路以这样的方式切换,使得现场设备通过第一能量供应操作;以及 能量存储器被充电,并且在其中输出电压低于预定值的第二状态下,充电电路被切换,使得现场设备借助于第一能量供应和能量存储提供。

    Vibration sensor and method for optimizing a piezoelectric drive

    公开(公告)号:US10677643B2

    公开(公告)日:2020-06-09

    申请号:US16319091

    申请日:2017-07-05

    Abstract: The a vibration sensor comprising a membrane that can be stimulated so as to oscillate by means of a piezoelectric drive, and a mechanical oscillator arranged on the membrane, at least one piezoelectric element of the drive comprising at least one first electrical contact structure on an upper side of the piezoelectric element and at least one second electrical contact structure on a lower side of the piezoelectric element, such that the at least one piezoelectric element is designed so that an active area of the piezoelectric element corresponds to an area of a mechanical deformation of the unidirectional curvature of the membrane, during a pre-defined eigenmode of the mechanical oscillator.

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