Spacing compensating electrostatic voltmeter
    1.
    发明授权
    Spacing compensating electrostatic voltmeter 失效
    间距补偿静电电压表

    公开(公告)号:US06806717B2

    公开(公告)日:2004-10-19

    申请号:US10225555

    申请日:2002-08-21

    IPC分类号: G01R2912

    CPC分类号: G01R29/12

    摘要: An electrostatic type voltmeter for measuring the potential on a surface, the voltmeter including a probe; a support for supporting the probe in spaced relationship with the surface, the probe having a plurality of spacing element sites thereon for measuring a distance between each of the plurality of spacing element sites and a corresponding area on the surface opposite of each of the plurality of spacing element sites; a plurality of electrostatic element sites, intermixed and adjacent to the plurality of spacing element sites on the probe, for measuring a voltage between each of the plurality of spacing element sites and an area on the surface adjacent to the corresponding area opposite of each of the plurality of spacing element sites. A processor for compensating an output signal of the probe in response to the measurements received from the plurality of spacing element sites and the plurality of electrostatic element sites.

    摘要翻译: 一种用于测量表面上的电位的静电型电压表,所述电压表包括探针; 用于支撑所述探针与所述表面间隔开的关系,所述探针在其上具有多个间隔元件位置,用于测量所述多个间隔元件位置中的每一个之间的距离以及与所述多个 间距单元; 多个静电元件位置,与探针上的多个间隔元件位置相互混合并相邻,用于测量多个间隔元件位置中的每一个之间的电压,以及与相邻区域相对的相应区域相邻的表面上的区域 多个间距元件位置。 一种处理器,用于响应于从多个间隔元件位置和多个静电元件位点接收的测量值来补偿探针的输出信号。

    Paper property sensing system
    3.
    发明授权
    Paper property sensing system 失效
    纸属性感知系统

    公开(公告)号:US5835975A

    公开(公告)日:1998-11-10

    申请号:US666765

    申请日:1996-06-19

    CPC分类号: G01N19/02 G01B7/06 G01N33/346

    摘要: A sensor system for measuring physical properties of paper. The paper property sensor system includes a surface and a diaphragm opposed to each other. The small diaphragm includes a first pair and a second pair p-type piezoresistors. Each piezoresistor of the first pair has a longitudinal axis and is located perpendicular to and very close to one of the long edges of the diaphragm. Each piezoresistor of the second pair has a longitudinal axis and is located between and parallel to first pair of piezoresistors, and away from the short edges of the diaphragm. Coupling the first pair of piezoresistors with the second pair via a Wheatstone bridge produces a voltage representative of the shear force exerted by a sheet.

    摘要翻译: 用于测量纸张物理性能的传感器系统。 纸张性质传感器系统包括彼此相对的表面和隔膜。 小隔膜包括第一对和第二对p型压电电阻。 第一对的每个压敏电阻器具有纵向轴线并且垂直于并且非常接近隔膜的一个长边缘定位。 第二对的每个压敏电阻具有纵向轴线并且位于第一对压敏电阻器之间并且平行于第一对压敏电阻器并且远离隔膜的短边缘。 通过惠斯通电桥将第一对压敏电阻与第二对耦合产生代表由片施加的剪切力的电压。

    Lead edge paper curl sensor
    6.
    发明授权
    Lead edge paper curl sensor 有权
    引线边缘卷曲传感器

    公开(公告)号:US06668155B1

    公开(公告)日:2003-12-23

    申请号:US10202209

    申请日:2002-07-23

    IPC分类号: G03G1500

    CPC分类号: G03G15/6576

    摘要: A sheet curl measurement system and method and an automatic sheet decurling system controlled thereby for the printed paper sheets output of printer. The sheet curl may be remotely sensed without contacting or interfering with the motion of the sheets in their normal sheet path, using a simple but accurate optical sheet curl sensor operating on a portion of the moving sheet at an angle thereto and perpendicularly thereto, with displacement insensitive optics, in both an angular direction substantially parallel to the sheet movement direction and an angular direction substantially transverse to the sheet movement direction, with ratioing of the two output signals.

    摘要翻译: 一种纸张卷曲测量系统和方法以及由此控制的用于打印机的打印纸张输出的自动纸张卷曲消除系统。 使用简单而精确的光学片卷曲传感器可以远程感测纸张卷曲,而不会使纸张在其正常的纸张路径中的运动接触或干扰,该光学片卷曲传感器以与其垂直的角度运动在移动片材的一部分上并具有位移 在两个输出信号的比例方面,基本上平行于纸张移动方向的角度方向和基本上横向于纸张移动方向的角度方向都不敏感。

    Actuator for actuating a surface contacting probe of a contacting
electrostatic voltmeter
    7.
    发明授权
    Actuator for actuating a surface contacting probe of a contacting electrostatic voltmeter 失效
    用于致动接触式静电电压表的表面接触探针的致动器

    公开(公告)号:US5633700A

    公开(公告)日:1997-05-27

    申请号:US331448

    申请日:1994-10-31

    IPC分类号: G01R29/12 G03G15/00 G03G21/00

    CPC分类号: G03G15/5037 G01R29/12

    摘要: A contacting electrostatic voltmeter suitable for sampling positive or negative potentials on an electrostatically charged surface. The electrostatic voltmeter includes a selectively controllable actuation mechanism that enables the use of a contacting electrostatic voltmeter to sample the surface of an electrostatically charged member, moving relative thereto, within a predetermined space. The invention finds particular use in a printing system, where it enables charge monitoring during printing yet avoids disturbance to charged latent image areas on the imaging member.

    摘要翻译: 接触式静电电压表适用于在静电电荷表面上采样正电位或负电位。 静电伏特计包括一个选择性可控制的致动机构,其使得能够使用接触静电电压计在预定空间内对相对于其移动的静电电荷元件的表面进行采样。 本发明在打印系统中特别有用,其中它能够在打印期间进行电荷监测,同时避免对成像构件上的充电潜像区域的干扰。