公开(公告)号：US4597294A

公开(公告)日：1986-07-01

申请号：US624078

申请日：1984-06-25

申请人： Bernard A. Brill, III ,  Warren R. Junker ,  John K. White ,  Iftikhar A. Rana ,  Bruce W. Bevilacqua ,  Frank W. Cooper, Jr. ,  Bruce J. Taszarek

发明人： Bernard A. Brill, III ,  Warren R. Junker ,  John K. White ,  Iftikhar A. Rana ,  Bruce W. Bevilacqua ,  Frank W. Cooper, Jr. ,  Bruce J. Taszarek

IPC分类号： G01N29/28 ,  F22B37/00 ,  G01N29/04 ,  G01N29/06 ,  G01N29/265 ,  G21C17/00

CPC分类号： G01N29/265 ,  F22B37/003 ,  G01N29/0627 ,  G01N2291/0258 ,  G01N2291/02854

摘要： An apparatus is disclosed for inspection of tubing, and more particularly, the determination of the extent of erosion in the wall of a heat exchange tube of a nuclear reactor. An ultrasonic transducer assembly is movable axially and rotatably in a helical path for producing both thickness and position signals to provide a map of wall thickness.

摘要翻译： 公开了一种用于检查管道的装置，更具体地，确定核反应堆的热交换管壁的侵蚀程度。 超声换能器组件可以轴向和可旋转地在螺旋路径中移动，以产生厚度和位置信号以提供壁厚的图。

公开(公告)号：US4763274A

公开(公告)日：1988-08-09

申请号：US878095

申请日：1986-06-24

申请人： Warren R. Junker ,  George A. Savage ,  Ronald H. Ingraham ,  David A. Bone ,  Mustan Attaar ,  Raymond P. Castner ,  Bruce J. Taszarek

发明人： Warren R. Junker ,  George A. Savage ,  Ronald H. Ingraham ,  David A. Bone ,  Mustan Attaar ,  Raymond P. Castner ,  Bruce J. Taszarek

IPC分类号： G01N27/90 ,  G21C17/003 ,  G01R33/12

CPC分类号： G01N27/9093 ,  G01N27/9046

摘要： A digital computer performs a complete eddy current analysis of the tubes of a steam generator from data input to generation of a final report. The computer extracts signatures generated by various structural features and tube defects from the data, breaks down composite signatures into their component parts and classifies each such signature by applying thereto a cascading set of experience based rules. Signatures classified as structural features are examined closely for the presence of colocated tube defects. A post processor correlates the location of the indication identified from the time based eddy current data with the known physical location of the structural features so that the position of the defects can be presented in terms of distances from fixed structures.

摘要翻译： 数字计算机根据从最终报告生成的数据输入对蒸汽发生器的管进行完整的涡流分析。 计算机从数据中提取由各种结构特征和管缺陷产生的签名，将复合签名分解成其组成部分，并通过向其应用级联的基于经验的规则集合对每个这样的签名进行分类。 分类为结构特征的签名被密切检查是否存在共定位管缺陷。 后处理器将从基于时间的涡流数据识别的指示的位置与结构特征的已知物理位置相关联，使得可以根据与固定结构的距离来呈现缺陷的位置。

公开(公告)号：US4578643A

公开(公告)日：1986-03-25

申请号：US553346

申请日：1983-11-18

申请人： Warren R. Junker ,  Bruce J. Taszarek ,  David A. Chizmar

发明人： Warren R. Junker ,  Bruce J. Taszarek ,  David A. Chizmar

IPC分类号： G01N27/72 ,  G01N27/90 ,  G01R35/00 ,  G01N27/82

CPC分类号： G01N27/9086

摘要： An apparatus for simulating and analyzing discontinuities in a tube using eddy current inspection techniques is disclosed. The simulation apparatus includes inner and outer tubular members arranged to define an annular chamber having a predetermined tubular configuration corresponding to the tubular configuration of a tube under investigation. The outer tubular member has an opening through the wall thereof and the inner tubular member defines an axially extending hollow interior. A supply of electrically conductive liquid material is provided in the annular chamber, the quantity of liquid material being such as to substantially and completely fill the annular chamber in the vicinity of the opening through the wall of the outer tubular member. A defect simulation member is supported in the opening in the outer tubular member for movement along a predetermined direction extending transverse to the axis of the inner tubular member. Further, an eddy current test probe is positioned in the hollow interior of the inner tubular member adjacent the position of the defect simulation member for generating eddy current responses which are representative of the eddy current responses which would be obtained for a tube having a configuration corresponding to the predetermined tubular configuration and having a discontinuity in the wall thereof corresponding to the predetermined type of discontinuity.

摘要翻译： 公开了一种使用涡流检测技术来模拟和分析管中不连续性的装置。 模拟装置包括内部和外部管状构件，其布置成限定具有对应于正在研究的管的管状构造的预定管状构造的环形室。 外部管状构件具有穿过其壁的开口，内部管状构件限定轴向延伸的中空内部。 在环形室中提供导电液体材料的供应，液体材料的量通过外部管状构件的壁基本上和完全地填充在开口附近的环形室。 缺损模拟构件被支撑在外管状构件的开口中，用于沿着横向于内管构件的轴线延伸的预定方向移动。 此外，涡流测试探针定位在邻近缺陷模拟构件的位置的内部管状构件的中空内部，用于产生涡流响应，其代表对于具有对应的构造的管将获得的涡流响应 到预定的管状构造并且在其壁上具有与预定类型的不连续性相对应的不连续性。

公开(公告)号：US4380929A

公开(公告)日：1983-04-26

申请号：US279504

申请日：1981-06-30

申请人： Bruce J. Taszarek ,  Warren R. Junker

发明人： Bruce J. Taszarek ,  Warren R. Junker

IPC分类号： G01B17/02 ,  G01N29/34 ,  G01N29/04

CPC分类号： G01N29/348 ,  G01B17/02 ,  G01N2291/02854

摘要： Near-surface discontinuities, or flaws, within a workpiece are determined by transmitting acoustic energy into the workpiece. If a discontinuity is present the acoustic energy will resonate in the section of the material between the discontinuity and the surface. Acoustic energy emerging from the section as a result of the resonating is detected and analyzed to determine this fundamental frequency, from which the half wavelength and depth of the discontinuity may be determined. The procedure is also applicable for determining the thickness of relatively thin sheets of material.

摘要翻译： 通过将声能传递到工件中来确定工件内的近表面不连续性或缺陷。 如果存在不连续性，声能将在不连续性和表面之间的材料部分中共振。 检测并分析从该部分出现的作为谐振结果的声能，以确定该基频，从而可以确定不连续的半波长和深度。 该程序也适用于确定相对薄的材料片材的厚度。