公开(公告)号：US4992732A

公开(公告)日：1991-02-12

申请号：US345762

申请日：1989-05-01

申请人： Karl G. Walther ,  Ronald G. Walther

发明人： Karl G. Walther ,  Ronald G. Walther

IPC分类号： G01N27/84

CPC分类号： G01N27/84

摘要： Method and apparatus for inspecting weld seams by means of particles of magnetizable material which align themselves in a magnetic field in a manner characteristic of faults the particles are suspended at the start of a test in a first liquid Fl.sub.1, the particles being freely mobile in the suspension and no viscosity change of the suspension taking place. Thereafter a substance is added to the suspension which effects a change of state, the particles aligned in the magnetic field thereby being fixed in their position.

摘要翻译： 用于通过可磁化材料颗粒检查焊缝的方法和装置，其以在第一液体F11中的测试开始时以特征的故障特征的方式在磁场中对准，所述颗粒在 悬浮液和悬浮液的粘度变化不发生。 此后，将一种物质添加到悬浮液中，其实现状态改变，在磁场中排列的颗粒被固定在其位置。

公开(公告)号：US4888745A

公开(公告)日：1989-12-19

申请号：US246698

申请日：1988-09-20

申请人： Karl G. Walther ,  Ronald G. Walther

发明人： Karl G. Walther ,  Ronald G. Walther

IPC分类号： G01N27/82 ,  G01N27/84 ,  G01V1/00 ,  G01V3/00 ,  G01V15/00

CPC分类号： G01N27/84

摘要： For marking and finding weld seams to be investigated under water ultrasonic transmitters 54 are provided which have luminous or light-reflecting characters 58. The diver brings an ultrasonic receiver 60 up to the ultrasonic transmitter 54. For more exact location determination along the weld seam 52 a tape is provided which is disposed along the weld seam 52 and has elements arranged in coded manner.

摘要翻译： 为了在水下标记和找到待调查的焊缝，提供具有发光或反光字符的超声波发射器54.潜水员将超声波接收器60带到超声波发射器54。为了沿着焊缝52进行更准确的位置确定 提供沿着焊缝52设置并具有以编码方式布置的元件的带。

公开(公告)号：US3969926A

公开(公告)日：1976-07-20

申请号：US562550

申请日：1975-03-27

申请人： Philip A. Walker ,  Karl G. Walther

发明人： Philip A. Walker ,  Karl G. Walther

IPC分类号： G01N29/11 ,  G01N29/22 ,  G01N29/28 ,  G01N29/30 ,  G01N29/48 ,  G10K11/35 ,  G01N29/04

CPC分类号： G01N29/28 ,  G01N29/11 ,  G01N29/225 ,  G01N29/30 ,  G01N29/48 ,  G10K11/352 ,  G01N2291/044

摘要： This invention refers to an ultrasonic pulse-echo nondestructive test method and apparatus for causing the axis of an ultrasonic energy search beam path transmitted from an ultrasonic transducer probe to a workpiece to be maintained normal to an irregularly contoured workpiece entrant surface. Electrical circuit means measure and compare the echo signals reflected from the workpiece and cause the search probe to be positioned to maximize the amplitude of the received signals.

摘要翻译： 本发明涉及一种超声波脉冲回波无损检测方法和装置，用于使超声波能量搜索光束路径的轴从超声换能器探针传递到工件以保持垂直于不规则轮廓的工件入口表面。 电路意味着测量和比较从工件反射的回波信号，并使搜索探针定位成使接收信号的振幅最大化。