Method and a device for photothermally testing workpieces
    33.
    发明授权
    Method and a device for photothermally testing workpieces 失效
    方法和用于光热测试工件的装置

    公开(公告)号:US5760400A

    公开(公告)日:1998-06-02

    申请号:US675410

    申请日:1996-07-02

    CPC classification number: G01N21/171 G01B11/0658 G01B21/085

    Abstract: A method for photothermally testing workpieces, which includes the steps of directing an electromagnetic excitation beam to a desired measuring point on the workpiece surface, detecting and evaluating the heat in the form of thermal radiation which is generated by the excitation beam at the measuring point with the aid of a measuring head; directing two visible locating beams to the workpiece surface, the two locating beams intersecting at a point of intersection; and correcting the relative position between the workpiece and the measuring head so that the point of intersection and the desired measuring point coincide on the workpiece surface.

    Abstract translation: 一种用于光热测试工件的方法,其包括以下步骤:将电磁激发光束引导到工件表面上的期望测量点,检测和评估由在测量点处的激发光束产生的热辐射形式的热量, 测量头的帮助; 将两个可见的定位梁引导到工件表面,两个定位梁在交点处相交; 并且校正工件和测量头之间的相对位置,使得交点和期望的测量点在工件表面上重合。

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