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1. 发明授权

US3774030A Defect detecting and indicating means for non-destructive testing 失效
标题翻译：缺陷检测和指示用于非破坏性试验的手段
公开(公告)号：US3774030A
公开(公告)日：1973-11-20
申请号：US3774030D
申请日：1972-06-02
申请人： MAGNAFLUX CORP
发明人： O CONNOR D , GRAHAM B , PRINE D
IPC分类号： G01N21/89 , G01N21/16
CPC分类号： G01N21/89
摘要： Defect detecting and indicating means for magnetic particle or penetrant systems in which defect indications are produced on the surface of a part. In one arrangement, radiant energy is impinged uniformly on a substantial area of the part which may be viewed while in another, the surface is scanned by a small flying spot of radiant energy, detector means being responsive to energy reflected back from the surface. In both arrangements a source of coherent radiation is used, preferably a laser, a fluorescent material is associated with the magnetic particles or the penetrant which absorbs energy at the wavelength of the radiation and emits in a different spectral range. A filter which rejects at the wavelength of the radiation may be used in front of the detector or for direct viewing. In the flying spot arrangement, signals developed may be applied to a television monitor and/or to a digital registering and pattern recognition system operative to develop an indication independent of defect position.
摘要翻译：磁性颗粒或渗透系统的缺陷检测和指示装置，其中在零件的表面产生缺陷指示。在一种布置中，辐射能量均匀地照射在可以被观看的部分的实质区域上，而在另一个中，表面被辐射能量的小飞点扫描，检测器装置响应于从表面反射回的能量。在两种布置中，使用相干辐射源，优选地是激光，荧光材料与吸收辐射波长的能量并在不同光谱范围内发射的磁性颗粒或渗透剂相关联。可以在检测器的前面使用在辐射波长处拒绝的滤波器，或用于直接观看。在飞点布置中，开发的信号可以应用于电视监视器和/或数字登记和模式识别系统，该系统可操作以开发独立于缺陷位置的指示。

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