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公开(公告)号：US5029476A
公开(公告)日：1991-07-09
申请号：US404136
申请日：1989-09-07
CPC分类号： G01B17/02 , G01N2291/044
摘要： A system for determining the cross sectional profile of an object (24) having two opposed surfaces (26,28), includes:an ultrasonic transducer (16) having a reference surface (20) and arranged to emit and receive ultrasonic energy via the reference surface (20);a thickness determining unit (60) connected to the transducer (16) for causing the transducer (16) to emit ultrasonic energy via the reference surface (20) and for detecting reflected ultrasonic energy received by the transducer (16) via the reference surface (20) in order to derive indications of the distance between the reference surface (20) and an ultrasonic energy reflecting surface facing the reference surface (20);a carriage (2) supporting the transducer (16);a guide member (4) defining a linear travel path having a reference point and supporting the carriage (2) for movement along the travel path;a position determining unit (12,44,62) operatively associated with the carriage (2) for deriving an indication of the location of the carriage (2) along the travel path relative to the reference point;elements (32,34) for securing the guide member (4) to the object (24) so that the linear travel path extends along one of the two opposed surfaces (26); anda signal processing device (64) coupled to the thickness determining unit (60) and the position determining unit (12,44,62) for producing representations of the distance between the opposed surfaces (26,28) of the object (24) correlated with the location of the carriage (2) relative to the reference point when the reference surface (20) is in contact with one of the two opposed surfaces (26,28).
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2.发明授权System and method including a buried flexible sheet target impregnated with ferromagnetic particles and eddy current probe for determining proximity of a non-conductive underground structure 失效包括用于确定非导电性地下结构的临近的带有非线性颗粒和EDDY电流探测器的布置的柔性片材目标的系统和方法
公开(公告)号：US5200704A
公开(公告)日：1993-04-06
申请号：US662664
申请日：1991-02-28
摘要： Both a system and a method are provided which allows an eddy current probe to accurately determine both the proximity and dimensions of non-conductive structures which are normally invisible to such probes. The system includes a portable target medium that is movable into a known position with respect to the non-conductive structure, and that includes a conductive material that couples strongly with a fluctuating magnetic field, and a movable eddy current probe that emanates a fluctuating magnetic field and which generates a signal indicative of the magnitude of the interaction between the field and the portable target medium from which the distance between the two may be computed. The system may be used to determine the proximity of non-conductive structures such as plastic pipes that have been buried under ground, as well as the dimensions of such non conductive structures.
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3.发明授权System and method using portable wall engaging ferromagnetic particle impregnated target medium for electromagnetically measuring distance between oposing walls of a structure 失效使用便携式墙壁接合铁磁颗粒浸渍的目标介质的系统和方法用于电磁测量结构的施加壁之间的距离
公开(公告)号：US5373235A
公开(公告)日：1994-12-13
申请号：US38214
申请日：1993-03-29
摘要： Both a system and a method are provided which allows an eddy current probe to accurately determine both the proximity and dimensions of non-conductive structures which are normally invisible to such probes. The system comprises a portable target medium that is movable into a known position with respect to the non-conductive structure, and that includes a conductive material that couples strongly with a fluctuating magnetic field, and a movable eddy current probe that emanates a fluctuating magnetic field and which generates a signal indicative of the magnitude of the interaction between the field and the portable target medium from which the distance between the two may be computed. The system may be used to determine the proximity of non-conductive structures such as plastic pipes that have been buried under ground, as well as the dimensions of such non-conductive structures. When the system is applied to measure the dimensions of such a structure, the portable target medium assumes a form that is flexibly conformable to one of the walls of the structure and which is placed in abutting relationship thereto. The eddy current probe is then scanned against an opposing wall of the structure, whereby the width of the structure may be computed by measuring the strength of the interaction between the probe and the medium. In addition to measuring the dimensions of non-conductive structures, the system may be used to measure the dimensions of non-magnetic structures when the target medium includes a strongly magnetic material.
摘要翻译： 提供了一种系统和方法，其允许涡流探针精确地确定通常对这种探针不可见的非导电结构的接近度和尺寸。 该系统包括可移动到相对于非导电结构的已知位置的便携式目标介质，并且其包括强烈地与波动的磁场耦合的导电材料以及发出波动磁场的可移动涡流探针 并且其产生指示可以从其计算两者之间的距离的场和便携式目标介质之间的相互作用的大小的信号。 该系统可以用于确定非导电结构（例如埋在地下的塑料管）的接近度以及这种非导电结构的尺寸。 当该系统被应用于测量这种结构的尺寸时，便携式目标介质采用与该结构中的一个壁柔性地一致并且与其相邻置的形式。 然后将涡流探针扫过结构的相对壁，由此可以通过测量探针和介质之间的相互作用的强度来计算结构的宽度。 除了测量非导电结构的尺寸之外，当目标介质包括强磁性材料时，该系统可用于测量非磁性结构的尺寸。
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4.发明授权Apparatus and method for providing a combined ultrasonic and eddy current inspection of a metallic body 失效一种用于提供金属体的超声波和涡流检测的装置和方法
公开(公告)号：US4955235A
公开(公告)日：1990-09-11
申请号：US369725
申请日：1989-06-23
申请人： Michael J. Metala , William G. Clark, Jr. , Warren R. Junker , Lee W. Burtner , Thomas E. Arzenti , Harold P. Johnson , Robert P. Vestovich , Bruce W. Bevilacqua
发明人： Michael J. Metala , William G. Clark, Jr. , Warren R. Junker , Lee W. Burtner , Thomas E. Arzenti , Harold P. Johnson , Robert P. Vestovich , Bruce W. Bevilacqua
IPC分类号： G01N27/90 , G01N29/22 , G01N29/265
CPC分类号： G01N29/265 , G01N27/902 , G01N27/9046 , G01N29/221 , G01N2291/044 , G01N2291/045 , G01N2291/048 , G01N2291/105 , G01N2291/2636
摘要： Both an apparatus and a method for simultaneously inspecting the walls of a tube with both ultrasonic and eddy current probes is disclosed herein. The apparatus generally comprises a cylindrical housing assembly insertable within the tube to be inspected, and a probe carrier rotatably mounted within and helically movable with respect to the housing. The probe carrier holds three ultrasonic probes for transmitting ultrasonic beams which are directly oriented radially, chordally, and axially with resepect to the longitudinal axis of the tube, as well as an eddy current probe for simultaneously inspecting the walls of the tube with electromagnetic lines of flux. The apparatus further includes a helical drive train formed from a lead screw assembly having a motor means, a drive shaft, and a drive sleeve for imparting a helical scanning motion to the probe carrier with respect to the housing. The interior of the drive sleeve is slidably engaged to the shaft which is in turn coupled to the output of the motor, while the outside of the drive sleeve is threadedly engaged to the interior of the housing. The probe carrier is in turn coupled to the drive sleeve. In the method of the invention, the data generated by the three eddy current probes is correlated with the data generated by the eddy current probe for each specific section of the tube, and displayed simultaneously to the system operator. The resulting complementary display of both ultrasonic and eddy current probe information allows the system operator to accurately determine the size, shape and nature of any flaws which may be present in the walls of the tube.
摘要翻译： 本文公开了一种用于同时检查具有超声波和涡流探针的管壁的装置和方法。 该装置通常包括可插入待检查的管内的圆柱形壳体组件和可旋转地安装在其内并相对于壳体螺旋移动的探针架。 探针架支撑三个超声波探头，用于传输超声波束，该超声波束直接径向，弦向和轴向定向到管的纵向轴线，以及涡流探针，用于同时用电磁线检测管的壁 助焊剂 该装置还包括由具有马达装置，驱动轴和驱动套筒的导螺杆组件形成的螺旋传动系，用于相对于壳体向探针支架施加螺旋扫描运动。 驱动套筒的内部可滑动地接合到轴，该轴又联接到马达的输出，而驱动套筒的外部螺纹地接合到壳体的内部。 探头托架又耦合到驱动套筒。 在本发明的方法中，由三个涡电流探头产生的数据与由涡流探针针对管的每个特定部分生成的数据相关，同时显示给系统操作者。 所得到的超声波和涡流探针信息的互补显示允许系统操作者准确地确定可能存在于管壁中的任何缺陷的尺寸，形状和性质。
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5.发明授权Apparatus and method for providing a combined ultrasonic and eddy current inspection of a tube 失效用于提供管的组合超声波和涡流检查的装置和方法
公开(公告)号：US4856337A
公开(公告)日：1989-08-15
申请号：US79860
申请日：1987-07-30
申请人： Michael J. Metala , William G. Clark, Jr. , Warren R. Junker , Lee W. Burtner , Thomas E. Arzenti , Harold P. Johnson , Robert P. Vestovich , Bruce W. Bevilacqua
发明人： Michael J. Metala , William G. Clark, Jr. , Warren R. Junker , Lee W. Burtner , Thomas E. Arzenti , Harold P. Johnson , Robert P. Vestovich , Bruce W. Bevilacqua
IPC分类号： G01N27/90 , G01N29/04 , G01N29/06 , G01N29/22 , G01N29/265 , G21C17/003
CPC分类号： G01N29/221 , G01N27/902 , G01N27/9046 , G01N29/0618 , G01N29/265 , G01N2291/02854 , G01N2291/044 , G01N2291/045 , G01N2291/048 , G01N2291/105 , G01N2291/2636
摘要： Both an apparatus and a method for simultaneously inspecting the walls of a tube with both ultrasonic and eddy current probes is disclosed herein. The apparatus generally comprises a cylindrical housing assembly insertable within the tube to be inspected, and a probe carrier rotatably mounted within and helically movable with respect to the housing. The probe carrier holds three ultrasonic probes for transmitting ultrasonic beams which are directly oriented radially, chordally, an axially with respect to the longitudinal axis of the tube, as well as an eddy current probe for simultaneously inspecting the walls of the tube with electromagnetic lines of flux. The apparatus further includes a helical drive train formed from a lead screw assembly having a motor means, a drive shaft, and a drive sleeve for imparting a helical scanning motion to the probe carrier with respect to the housing. The interior of the drive sleeve is slidably engaged to the shaft which is in turn coupled to the output of the motor, while the outside of the drive sleeve is threadedly engaged to the interior of the housing. The probe carrier is in turn coupled to the drive sleeve. In the method of the invention, the data generated by the three eddy current probes is correlated with the data generated by the eddy current probe for each specific section of the tube, and displayed simultaneously to the system operator. The resulting complementary display of both ultrasonic and eddy current probe information allows the system operator to accurately determine the size, shape and nature of any flaws which may be present in the walls of the tube.
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公开(公告)号：US4725883A
公开(公告)日：1988-02-16
申请号：US886844
申请日：1986-07-18
CPC分类号： G01N21/954 , G01B11/24 , G01N2021/8887 , G01N2201/102
摘要： An optical inspection system for tubular products utilizes a feeler for engaging the internal surface of the tube to be inspected and a miniature charge coupled device video camera for viewing the interface between the feeler and the tube. An image processing computer responsive to the output of the video camera produces information for rapidly assessing damage or distortion of the tube. The camera is pulled or pushed through the tube while continuously monitoring the optical contrast between the feeler and the tube wall. The camera image of the tube ID is fed to the image processing computer to determine and record changes in ID contour is a function of the axial position of the camera and feeler. These data in turn can be used in tubing life prediction considerations. The data may be analyzed manually if desired.
摘要翻译： 用于管状产品的光学检查系统利用用于接合要检查的管的内表面的探针和用于观察触针和管之间的界面的微型电荷耦合器件摄像机。 响应于摄像机的输出的图像处理计算机产生用于快速评估管的损坏或变形的信息。 在连续监测探测器和管壁之间的光学对比度的同时，将照相机拉过或推过管。 管ID的摄像机图像被馈送到图像处理计算机以确定并记录ID轮廓的变化是摄像机和探测器的轴向位置的函数。 这些数据依次可用于油管寿命预测的考虑。 如果需要，可以手动分析数据。
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7.发明授权System and method for inspecting metallic plugs in heat exchanger tubes using a radially extendible probe 失效使用径向延伸的探针检查热交换器管中的金属塞的系统和方法
公开(公告)号：US4992735A
公开(公告)日：1991-02-12
申请号：US387997
申请日：1989-08-01
申请人： William K. Cullen , Charles H. Roth, Jr. , Lee W. Burtner , Francis X. Gradich , David A. Chizmar , Lawrence Galata
发明人： William K. Cullen , Charles H. Roth, Jr. , Lee W. Burtner , Francis X. Gradich , David A. Chizmar , Lawrence Galata
IPC分类号： F22B37/00 , G01N27/90 , G21C17/003
CPC分类号： F22B37/003 , G01N27/902
摘要： An apparatus and a method for remotely inspecting the interior walls of a cavity having a circular cross section that varies in diameter, such as the interior of a hollow tube plug. The apparatus has an eddy current probe head having a distal and proximal end, wherein the distal end engages the cavity walls, an elongated support assembly connected to the proximal end of the probe that is insertable within the cavity, a radial extender mechanism for radially extending and withdrawing the distal end of the probe with respect to the longitudinal axis of the support assembly, and a probe driving and delivery system for inserting the support assembly into the cavity and helically moving the probe head to inspect the cavity walls for discontinuities. In the method of the invention, the radial extender mechanism radially retracts the probe head within the support assembly when it is inserted through the cavity prior to the inspection operation in order to avoid mechanical interference, and then radially extends the probe head into engagement with the cavity walls. The probe driving and delivery system then helically moves the probe head across the cavity walls to scan the walls for discontinuities that indicate cracks.
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8.发明授权
公开(公告)号：US5666051A
公开(公告)日：1997-09-09
申请号：US539241
申请日：1995-10-04
CPC分类号： G01N27/72 , G01B7/24 , G01N27/9013 , B82Y35/00
摘要： Both a system and method are provided for mapping the magnitude of residual compressive stresses over the surface of a ferromagnetic machine component, such as a valve ring of the type used in refrigeration compressors. The system includes an eddy current probe having a detection coil for emanating a fluctuating electromagnetic field that shallowly penetrates the surface of the valve ring or other ferromagnetic component, a probe circuit connected to the coil for both conducting a high frequency alternating electric current through the coil and detecting changes in the impedance in the coil, and a scanning mechanism having a turntable for supporting and rotating the component. A support arm positions the coil of the eddy current over a central portion of the valve ring while the ring is rotated by the turntable and changes in coil impedance are detected by the probe circuit. A microprocessor converts the fluctuations in the impedance detected by the eddy current probe circuit into residual stress values, and correlates these values with regular positions on the valve ring in order to generate a map of the residual surface stresses over the ring.
摘要翻译： 提供了一种系统和方法，用于映射铁磁机器部件（例如在制冷压缩机中使用的类型的阀环）的表面上的残余压缩应力的大小。 该系统包括具有检测线圈的涡流探针，该检测线圈用于发出浅层地穿透阀环或其它铁磁部件的表面的波动电磁场;连接到线圈的探针电路，用于传导通过线圈的高频交流电流 并且检测线圈中的阻抗的变化，以及具有用于支撑和旋转部件的转盘的扫描机构。 支撑臂将涡流的线圈定位在阀环的中心部分上，同时环由转台旋转，线圈阻抗的变化由探针电路检测。 微处理器将由涡流探针电路检测的阻抗的波动转换为残余应力值，并将这些值与阀环上的常规位置相关联，以便产生环上的残余表面应力的映射。
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公开(公告)号：US5333502A
公开(公告)日：1994-08-02
申请号：US945788
申请日：1992-09-16
IPC分类号： G01N29/032 , G01N29/265 , G01N29/04
CPC分类号： G01N29/032 , G01N29/265 , G01N2291/02416 , G01N2291/02818 , G01N2291/105 , G01N2291/2636 , G01N2291/267 , G01N2291/269
摘要： A method for monitoring the environment of a vessel provides a liquid (18) which may contain particles (20) in a vessel having containment walls (12), where a hollow member (26) such as a thin tube is inserted into the liquid near the containment walls, and the hollow member contains in it a robotic device (34), which can travel within the hollow member and which can emit and receive ultrasonic waves and electromagnetic fields, where both of the ultrasonic waves and electric fields can pass through the hollow member (26) to the containment walls (12), where the device: emits and receives low frequency ultrasonic waves to and from the containment walls (12) and high frequency ultrasonic waves to and from any particles (20), and emits electromagnetic fields to the containment walls (12) or their combination, where absorptions and reflections from the hollow member walls and the containment walls, and any particles present are measured and any current generated in the hollow member walls and the containment wall by the electromagnetic fields are measured, and then any differences are measured to determine flaws (24) in the hollow member and containment walls, and properties of any particles (20) in suspension.
摘要翻译： 用于监测容器环境的方法提供了一种液体（18），其可以在容器内容纳有容器（12）中的颗粒（20），其中诸如细管的中空构件（26）插入液体附近 容纳壁和中空构件包括机器人装置（34），其可在中空构件内行进并且能够发射和接收超声波和电场，其中超声波和电场都可以通过 空心构件（26）连接到容纳壁（12），其中装置：向容纳壁（12）发射和从容纳壁（12）发射低频超声波，并将高频超声波接收到任何颗粒（20）和从任何颗粒（20）发射电磁 （12）或其组合的场地，其中测量来自中空构件壁和容纳壁以及存在的任何颗粒的吸收和反射，以及在中空构件壁中产生的任何电流 并且测量通过电磁场的容纳壁，然后测量任何差异以确定中空构件和容纳壁中的瑕疵（24）以及悬浮液中任何颗粒（20）的性质。
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10.发明授权
公开(公告)号：US5065635A
公开(公告)日：1991-11-19
申请号：US583060
申请日：1990-09-14
申请人： Lee W. Burtner , David A. Chizmar
发明人： Lee W. Burtner , David A. Chizmar
CPC分类号： G01N27/902
摘要： An apparatus for inspecting an item having grooves machined therein includes a main housing having longitudinal grooves formed in opposite sides thereof. The main housing defines an underside for contacting the item to be inspected. A carriage has opposite sides adapted for slidably engaging the longitudinal grooves in the main housing. A sensor is provided for inspecting the item. A mechanism is provided for connecting the sensor to the carriage such that the sensor extends beyond the underside of the main housing. The mechanism is adjustable so that the degree of extension of the sensor beyond the underside of the main housing may be controlled. A reference member is adjustably connected to, and extends from, the underside of the main housing for enabling the main housing to smoothly follow each groove.
摘要翻译： 用于检查其中加工有凹槽的物品的装置包括：主壳体，其具有形成在其相对侧的纵向槽。 主壳体限定用于接触要检查的物品的下侧。 滑架具有适于滑动地接合主壳体中的纵向槽的相对侧。 提供一个传感器来检查物品。 提供了用于将传感器连接到托架的机构，使得传感器延伸超出主壳体的下侧。 该机构是可调节的，使得可以控制传感器延伸到主壳体的下侧之外的程度。 参考构件可调节地连接到主壳体的下侧并从主壳体的下侧延伸，以使得主壳体能够顺利地跟随每个凹槽。
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