公开(公告)号：US5257544A

公开(公告)日：1993-11-02

申请号：US824001

申请日：1992-01-22

申请人： B. T. Khuri-Yakub ,  Chung-Kao Hsieh

发明人： B. T. Khuri-Yakub ,  Chung-Kao Hsieh

IPC分类号： G01H13/00 ,  G01N29/12 ,  G01N29/24 ,  G01N29/30

CPC分类号： G01H13/00 ,  G01N29/12 ,  G01N29/2418 ,  G01N29/30 ,  G01N2291/0421 ,  G01N2291/0422 ,  G01N2291/265 ,  G01N2291/2696

摘要： The present invention provides for an inspection system and method for detecting defects in test objects which includes means for generating expansion inducing energy focused upon the test object at a first location, such expansion being allowed to contract, thereby causing pressure wave within and on the surface of the test object. Such expansion inducing energy may be provided by, for example, a laser beam or ultrasonic energy. At a second location, the amplitudes and phases of the acoustic waves are detected and the resonant frequencies' quality factors are calculated and compared to predetermined quality factor data, such comparison providing information of whether the test object contains a defect. The inspection system and method also includes means for mounting the bearing ball for inspection.

摘要翻译： 本发明提供一种用于检测被检物体中的缺陷的检查系统和方法，其包括用于在第一位置产生聚焦在被检物体上的膨胀引发能量的装置，这样的膨胀被允许收缩，从而在表面和表面上产生压力波 的测试对象。 这种膨胀诱导能量可以通过例如激光束或超声能量来提供。 在第二位置，检测声波的幅度和相位，并且计算谐振频率的质量因子并将其与预定的品质因数数据进行比较，这样的比较提供了测试对象是否包含缺陷的信息。 检查系统和方法还包括用于安装用于检查的轴承球的装置。