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14 条记录 (耗时 0.01 秒)

    CAPACITIVE DISTANCE SENSOR
    4.
    发明申请
    CAPACITIVE DISTANCE SENSOR 有权
    电容式距离传感器

    公开(公告)号：US20130193989A1

    公开(公告)日：2013-08-01

    申请号：US13793219

    申请日：2013-03-11

    申请人： BROSE FAHRZEUGTEILE GMBH & CO. KG, HALLSTADT

    发明人： Thorsten KUHNEN ,  Holger WUERSTLEIN

    IPC分类号： G01B7/02

    CPC分类号： G01B7/044 ,  B60R19/483 ,  G01B7/02 ,  G01B7/023 ,  G01B7/08 ,  H03K17/955 ,  Y10T29/49117

    摘要： A capacitive distance sensor is provided. The distance sensor includes a sensor element having an electrically conductive, elongated, flat sensor area which in turn contains a number of holes. The sensor area is completely surrounded by an electrically non-conductive insulating body, with the result that the insulating body completely covers the edge regions of the holes. The sensor element is produced, in particular, by first of all making the holes in the sensor area. In a subsequent step, the sensor area is completely encased by the insulating body which also completely fills the holes in the sensor area.

    摘要翻译： 提供电容式距离传感器。 距离传感器包括传感器元件，该传感器元件具有导电的，细长的，平坦的传感器区域，该传感器区域又包含多个孔。 传感器区域完全被非导电绝缘体包围，结果绝缘体完全覆盖孔的边缘区域。 特别地，传感器元件首先在传感器区域中形成孔。 在随后的步骤中，传感器区域完全被绝缘体所包围，绝缘体也完全填满传感器区域中的孔。

    Apparatus for measuring droplet length using capacitive electrode
    5.
    发明授权
    Apparatus for measuring droplet length using capacitive electrode 有权

    公开(公告)号：US12044528B2

    公开(公告)日：2024-07-23

    申请号：US17595573

    申请日：2021-10-08

    申请人： INJE UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION

    发明人： Ki Ho Han ,  Jun Hyeong Kim

    IPC分类号： G01B7/04 ,  G01N27/22

    CPC分类号： G01B7/044 ,  G01N27/226

    摘要： Provided is an apparatus for measuring a droplet length using a capacitive electrode including: a disposable panel; a board separated from the disposable panel and configured to be reused separately from the disposable panel; a sensing electrode unit patterned on an upper surface of the board and configured to measure a length of a droplet depending on a voltage value measured depending on a capacitance value of the fluid passing through the microfluid channel; a thin film provided on a lower surface of the disposable panel; and a negative pressure forming means configured to apply a negative pressure between the disposable panel and the board so that the disposable panel and the board are attached to or detached from each other.

    Electrostatic transducer for length measurement system
    6.
    发明授权
    Electrostatic transducer for length measurement system 失效
    用于长度测量系统的静电传感器

    公开(公告)号：US4438402A

    公开(公告)日：1984-03-20

    申请号：US277845

    申请日：1981-06-26

    申请人： Donald L. Cullen ,  John A. Robertson

    发明人： Donald L. Cullen ,  John A. Robertson

    IPC分类号： G01B7/04 ,  G01N27/60

    CPC分类号： G01B7/044

    摘要： A non-contacting electrostatic mark/sense length measurement gauge is used to place discrete areas of electrostatic charge at very accurately spaced intervals along a relatively moving material surface. Special construction of both the electrostatic marking and sensing transducers is employed. To compensate for expected unreliability of the mark/sense length gauge, a conventional highly reliable but less accurate contacting length gauge (such as a tachometer in rolling contact with the relatively moving material) is employed. The output from the electrostatic mark/sense length gauge and from the tachometer length gauge are combined by special electronic circuits to provide a length measurement of the passing material which is both highly accurate and reliable under all expected measurement conditions.

    摘要翻译： 使用非接触式静电标记/感测长度测量仪器沿相对移动的材料表面以非常精确的间隔间隔放置离散的静电荷区域。 使用静电标记和感测传感器的特殊结构。 为了补偿标记/感测长度计的预期不可靠性，采用传统的高度可靠但不太准确的接触长度计（例如与相对移动的材料滚动接触的转速计）。 来自静电标记/感测长度计和转速计长度计的输出通过专用电子电路组合，以提供在所有预期测量条件下高度准确和可靠的通过材料的长度测量。

    Device for measuring stitch length
    7.
    发明授权
    Device for measuring stitch length 失效
    用于测量缝合长度的装置

    公开(公告)号：US3566134A

    公开(公告)日：1971-02-23

    申请号：US3566134D

    申请日：1969-07-01

    申请人： NAT RES DEV

    发明人： SUTTON RICHARD WILLIAM BUCKNEL

    IPC分类号： G01P3/64 ,  B65H61/00 ,  D04B15/00 ,  D04B15/38 ,  D04B15/44 ,  D04B35/12 ,  G01B7/04 ,  G01P3/50 ,  D04B11/00

    CPC分类号： D04B35/12 ,  B65H61/00 ,  B65H2701/31 ,  G01B7/044 ,  G01P3/50

    摘要： A device for measuring the length of a stitch formed in a fully fashioned or Jacquard knitting machine by creating electrostatic marks on the yarn and detecting the passage of the marks through a detector. The passage of a mark through the detector causes the creation of a further mark. The detector comprises a plurality of electrically-conductive members uniformly spaced apart in the direction of movement of the yarn. The members are electrically connected to one another and the change in potential of the members upon passage of a mark past the members is used as a signal to a counter. The distance between the point of creation of the mark and the first detector member is equal to or a multiple of the distance between adjacent detector members.

    METHOD AND DEVICE FOR DETERMINING THE VIBRATION OF ROTOR BLADES
    9.
    发明申请
    METHOD AND DEVICE FOR DETERMINING THE VIBRATION OF ROTOR BLADES 审中-公开

    公开(公告)号：US20180164150A1

    公开(公告)日：2018-06-14

    申请号：US15580998

    申请日：2016-06-09

    申请人： Safran Aircraft Engines

    发明人： Andre Pierre Jean Xavier LEROUX ,  Romain Charles Gilles BOSSART

    IPC分类号： G01H1/00 ,  G01B7/04

    CPC分类号： G01H1/006 ,  G01B7/044

    摘要： A method for determining the vibration of turbomachine rotor blades, including steps of measuring, via one or more sensors, the variation in the minimum distance between each sensor and the top of each blade along a radial axis of the rotor, between successive rotations of each blade in front of each sensor, a minimum distance value being obtained on each passage of each blade in front of each sensor, in order to deduce therefrom a variation in the lengths of the blades along the radial axis; and, using directly, as such, the variation in the length of the blades along the radial axis in a model of the deformation of the blades, in order to deduce therefrom characteristics of one or more vibrational modes of the rotating blades. A turbomachine can be equipped with a device implementing this method.