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316 条记录 (耗时 0.039 秒)

    Apparatus and method for measuring strain within a structure
    11.
    发明授权
    Apparatus and method for measuring strain within a structure 失效
    用于测量结构内应变的装置和方法

    公开(公告)号：US5936411A

    公开(公告)日：1999-08-10

    申请号：US980325

    申请日：1997-11-28

    申请人： Stephen C. Jacobsen ,  Michael G. Mladejovsky ,  Mark R. Whitaker ,  Brian J. Maclean

    发明人： Stephen C. Jacobsen ,  Michael G. Mladejovsky ,  Mark R. Whitaker ,  Brian J. Maclean

    IPC分类号： G01B7/00 ,  G01B7/16 ,  G01D5/241 ,  G01R27/26

    CPC分类号： G01B7/16 ,  G01D5/2412

    摘要： A method and apparatus for measuring displacement of one location of a structure, relative to another, spaced apart location. The apparatus includes a first array of conductive elements disposed on the structure and attached at said one location; a second array of conductive elements disposed on the structure adjacent the first array and attached at said other, spaced-apart location such that displacement of said one location with respect to said other, spaced-apart location can be measured by measuring the first array position with respect to the second array position; a source for supplying an electric current to the first and the second array of conductive elements to develop a unique charge between each conductive element of the first array and each respective conductive element of the second array, wherein the unique charge that is stored between each pair of conductive elements changes when the relative position of the first array changes with respect to the second array and the change in charges corresponds to the displacement of the one location with respect to the other, spaced apart location.

    摘要翻译： 一种用于测量结构的一个位置相对于另一间隔开的位置的位移的方法和装置。 该装置包括设置在结构上并附接在所述一个位置处的第一导电元件阵列; 第二阵列的导电元件布置在与第一阵列相邻的结构上，并附接在所述另一个间隔开的位置，使得所述一个位置相对于所述另一间隔开的位置的位移可以通过测量第一阵列位置 相对于第二阵列位置; 用于向第一和第二导电元件阵列提供电流以在第一阵列的每个导电元件和第二阵列的每个相应导电元件之间形成唯一电荷的源，其中存储在每对之间的唯一电荷 当第一阵列的相对位置相对于第二阵列改变时，导电元件的变化改变，并且电荷变化对应于一个位置相对于另一间隔开的位置的位移。

    Sliding contact mechanical/electrical displacement transducer
    14.
    发明授权
    Sliding contact mechanical/electrical displacement transducer 失效
    滑动接触机械/电位移传感器

    公开(公告)号：US5198740A

    公开(公告)日：1993-03-30

    申请号：US478266

    申请日：1990-02-12

    申请人： Stephen C. Jacobsen ,  Michael G. Mladejovsky ,  John E. Wood

    发明人： Stephen C. Jacobsen ,  Michael G. Mladejovsky ,  John E. Wood

    IPC分类号： G01B7/00 ,  G01B7/30 ,  G01D5/14 ,  G01D5/18 ,  G01D5/34 ,  G01L1/00 ,  G01P15/093 ,  G01P15/12

    CPC分类号： G01D5/145 ,  G01B7/003 ,  G01D5/18 ,  G01D5/34 ,  G01L1/005 ,  G01P15/093 ,  G01P15/12 ,  G01P15/124

    摘要： Displacement measuring apparatus for measuring the displacement and movement of an object includes an array of sensors having an operative surface and circuitry for producing an electrical output signal whose value is dependent upon the disposition of an electrical/magnetic field producing member along the sensor array. The field producing member is disposed to contact and slide over the operative surface as the object whose displacement is to be measured is moved. The value of the electrical output signal produced by the circuitry is thus dependent upon the position of the field producing member along the sensor array and thus by the position and movement of the object.

    摘要翻译： 用于测量物体的位移和移动的位移测量装置包括具有操作表面的传感器阵列和用于产生电输出信号的电路，该电输出信号的值取决于沿着传感器阵列的电场/磁场产生部件的布置。 场产生部件设置成随着要测量其位移的物体移动而接触并滑动在操作表面上。 因此，由电路产生的电输出信号的值取决于场产生部件沿着传感器阵列的位置，并因此取决于物体的位置和移动。

    Rotary displacement system using differential measuring
    15.
    发明授权
    Rotary displacement system using differential measuring 有权
    旋转位移系统采用差分测量

    公开(公告)号：US06170162B2

    公开(公告)日：2001-01-09

    申请号：US09320593

    申请日：1999-05-27

    申请人： Stephen C. Jacobsen ,  Michael G. Mladejovsky

    发明人： Stephen C. Jacobsen ,  Michael G. Mladejovsky

    IPC分类号： G01B730

    CPC分类号： G01D5/2415

    摘要： A rotary displacement measuring apparatus includes an axle whose rotary displacement is to be determined, with the axle being mounted to rotate about its long axis. An emitter disk is mounted on the axle to define a plurality of concentric tracks circumscribing the axle to rotate as the axle rotates, with each of the tracks being segmented to define a plurality of spaced-apart, conductive sections for producing electric fields when energized. Also included is a voltage source for energizing the conductive sections. A detector is disposed adjacent to the tracks of the emitter disk and includes a plurality of sensors, each positioned adjacent a respective track to detect the electric fields of the respective track as the axle and tracks are rotated. The detector produces signals representing the detection of the electric fields as the emitter disk is rotated, and these signals provide an indication of the rotary displacement of the tracks and thus of the axle.

    摘要翻译： 一种旋转位移测量装置包括一个轴，该轴的旋转位移将被确定，该轴被安装成围绕其长轴旋转。 发射器盘安装在轴上以限定围绕轴线的多个同心轨道，以便随着车轴转动而旋转，其中每个轨道被分段以限定多个间隔开的导电部分，用于在通电时产生电场。 还包括用于激励导电部分的电压源。 检测器被布置成与发射器盘的轨道相邻，并且包括多个传感器，每个传感器邻近相应的轨道定位，以在轴和轨道旋转时检测相应轨道的电场。 当发射器盘旋转时，检测器产生表示电场检测的信号，并且这些信号提供轨道和因此的轴的旋转位移的指示。

    Mechanical/electrical displacement transducer
    18.
    发明授权
    Mechanical/electrical displacement transducer 失效
    机械/电气位移传感器

    公开(公告)号：US5302886A

    公开(公告)日：1994-04-12

    申请号：US28767

    申请日：1993-03-09

    申请人： Stephen C. Jacobsen ,  Michael G. Mladejovsky ,  John E. Wood

    发明人： Stephen C. Jacobsen ,  Michael G. Mladejovsky ,  John E. Wood

    IPC分类号： G01B7/00 ,  G01D5/12 ,  G01D5/14 ,  G01D5/16 ,  G01D5/165 ,  G01D5/24 ,  G01D5/249 ,  G01D5/25 ,  G01D5/34 ,  G01L1/00 ,  G01P15/093 ,  G01P15/12 ,  G01R29/12 ,  H04R19/00

    CPC分类号： G01D5/14 ,  G01B7/003 ,  G01D5/34 ,  G01L1/005 ,  G01P15/093 ,  G01P15/12 ,  G01P15/124

    摘要： Displacement measuring apparatus for measuring the displacement and movement of an object includes a sensor having an operative surface and circuitry for producing an electrical output signal whose value is dependent upon the area of the operative surface covered by an electrical/magnetic field producing member. The apparatus also includes an elongate, flexible band capable of producing an electric/magnetic field, where the band is attached at one end to the sensor to roll over and cover or unroll from over and uncover the operative surface as the object whose displacement is to be measured is moved. The value of the electrical output signal produced by the circuitry is thus dependent upon the area of the operative surface covered by the band and thus by the position and movement of the object.

    摘要翻译： 用于测量物体的位移和移动的位移测量装置包括具有操作表面的传感器和用于产生电输出信号的电路，该电输出信号的值取决于由电/磁场产生构件覆盖的操作表面的面积。 该装置还包括能够产生电/磁场的细长的柔性带，其中带一端连接到传感器上，以便翻转并覆盖或展开作为其位移的物体的操作表面 被测量被移动。 因此，由电路产生的电输出信号的值取决于被带覆盖的操作表面的面积，并因此取决于物体的位置和移动。

    Linear displacement and strain measuring apparatus
    19.
    发明授权
    Linear displacement and strain measuring apparatus 失效
    线性位移和应变测量装置

    公开(公告)号：US5174159A

    公开(公告)日：1992-12-29

    申请号：US722487

    申请日：1991-06-21

    申请人： Stephen C. Jacobsen ,  Clark C. Davis ,  Michael G. Mladejovsky

    发明人： Stephen C. Jacobsen ,  Clark C. Davis ,  Michael G. Mladejovsky

    IPC分类号： G01B7/16

    CPC分类号： G01B7/16

    摘要： Linear displacement and strain measuring apparatus includes a linearly movable element, an emitter disposed on the movable element to move as the element is moved, for developing predetermined paterns of electric fields which vary linearly on the emitter in the direction of movement of the element, and a detector disposed in close proximity to the emitter adjacent the path in which the emitter moves to detect variations in the electric field patterns as the emitter is moved, for producing output signals representing variation in the electric field patterns and thus the linear displacement of the movable element relative to the detector. By attaching the movable element and the detector to spaced apart locations on a specimen, strain in the specimen can be measured.