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    METHOD AND APPARATUS FOR DETERMINING ANGULAR DISPLACEMENT, SURFACE TRANSLATION, AND TWIST
    1.
    发明公开
    METHOD AND APPARATUS FOR DETERMINING ANGULAR DISPLACEMENT, SURFACE TRANSLATION, AND TWIST 失效
    方法和设备，用来确定WINKELVERCHIEBUNG，地表移动TWIST

    公开(公告)号：EP1019668A2

    公开(公告)日：2000-07-19

    申请号：EP98921364.0

    申请日：1998-05-15

    申请人： Ibsen Micro Structures A/S ,  FORSKNINGSCENTER RISO

    发明人： ROSE, Bjarke ,  IMAM, Gulam, Husain ,  HANSON, Vagn, Steen, Grüner

    IPC分类号： G01B7/30

    CPC分类号： G01L3/12 ,  G01B11/162

    摘要： A method and apparatus for determining angular displacement of one or more parts of an object (10) comprising detecting in at least one first image sensor first and second one or more distributions of Fourier-transformed speckles before and after angular displacement, respectively, and determining the displacement of the detected images; a method and apparatus for determining twist of a rotating shaft between two or more parts of the shaft subjected to a load; a method and apparatus for simultaneously determining angular displacements and surface translations of one or more parts of an object; and a method of determining the radius of angular displacement of one or more parts of an object.