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    METHOD AND APPARATUS FOR MEASUREMENT AND CONTROL OF MAGNETIC PARTICLE CONCENTRATION IN A MAGNETORHEOLOGICAL FLUID
    1.
    发明公开
    METHOD AND APPARATUS FOR MEASUREMENT AND CONTROL OF MAGNETIC PARTICLE CONCENTRATION IN A MAGNETORHEOLOGICAL FLUID 有权
    的方法和设备，用于磁流变流体测量和控制磁性颗粒的浓度

    公开(公告)号：EP2697017A4

    公开(公告)日：2014-10-01

    申请号：EP12771264

    申请日：2012-04-12

    申请人： QED TECHNOLOGIES INT INC

    发明人： KORDONSKI WILLIAM ,  BEADLE KEITH ,  GORODKIN SERGEI ,  SEKERES ARPAD

    IPC分类号： B24B37/00 ,  B24B49/00 ,  G01N27/74

    CPC分类号： B24B57/02 ,  B24B49/10 ,  G01N27/74

    摘要： A system for sensing and controlling concentration of magnetic particles in magnetorheological fluid comprising a wire coil and an AC voltage generator that, when energized, creates a magnetic flux field including a fringing field. When the fringing field extends through the magnetorheological fluid, the impedance in the circuit is proportional to the concentration of magnetic particles. A reference wire coil identical to the sensing wire coil is connected therewith. A demodulator is connected to each of the coils sends an impedance difference signal to a feedback controller connected to controllable dispensing apparatus for adding a calculated amount of replenishing fluid to the magnetorheological fluid. The system may be incorporated into an integrated fluid management module having apparatus for receiving and replenishing spent magnetorheological fluid and a sensor system in accordance with the present invention for use in a magnetorheological finishing system having a carrier wheel.

    摘要翻译： 一种用于感测和在磁流变流体，其包括线圈和到，当通电时，磁通量场创建包括一个边缘场的交流电压发生器控制磁性粒子的浓度的系统。 当边缘场通过所述磁流变流体延伸，在电路中的阻抗正比于磁性颗粒的浓度。 等同于传感线圈导线的参考导线线圈与连接在那里。 解调器被连接到每个线圈的发送给差分信号阻抗连接到可控分配装置，用于将补充流体到所述磁流变流体的计算的量的反馈控制器。 该系统可以被并入在具有装置，用于接收和补给花费磁流变流体和传感器系统中雅舞蹈与用于在具有承载轮一个磁流变抛光系统中使用本发明的具有集成流体管理模块。

    INTEGRATED WAVEFRONT SENSOR AND PROFILOMETER
    5.
    发明公开
    INTEGRATED WAVEFRONT SENSOR AND PROFILOMETER 有权
    集成传感器轴前与轮廓

    公开(公告)号：EP2926082A4

    公开(公告)日：2016-08-17

    申请号：EP13858732

    申请日：2013-11-22

    申请人： QED TECHNOLOGIES INT INC

    发明人： KULAWIEC ANDREW ,  MURPHY PAUL ,  FLEIG JON

    IPC分类号： G01B11/24 ,  G01M11/02

    CPC分类号： G01M11/005 ,  G01M11/025 ,  G01M11/0271

    摘要： An instrument for measuring aspheric optical surfaces includes both an optical wavefront sensor and a single-point optical profilometer. The optical wavefront sensor measures surface height variations throughout one or more areas of an aspheric test surface. The single-point profilometer measures surface height variations along one or more traces on the aspheric test surface. At least one of the traces intersects at least one of the areas, and respective spatial frames of reference for the traces and areas are relatively adapted to each other by minimizing differences between points of nominal coincidence between the areas and traces.