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1. 发明授权

US5373235A System and method using portable wall engaging ferromagnetic particle impregnated target medium for electromagnetically measuring distance between oposing walls of a structure 失效
标题翻译：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
申请人： William G. Clark, Jr. , Francis X. Gradich , Lee W. Burtner , Michael J. Metala
发明人： William G. Clark, Jr. , Francis X. Gradich , Lee W. Burtner , Michael J. Metala
IPC分类号： G01B7/00 , G01B7/14 , G01V3/10 , G01V15/00 , G01B7/10
CPC分类号： G01B7/14 , G01V15/00
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。

2. 发明授权

US5200704A 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
标题翻译：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
申请人： William G. Clark, Jr. , Francis X. Gradich , Lee W. Burtner , Michael J. Metala
发明人： William G. Clark, Jr. , Francis X. Gradich , Lee W. Burtner , Michael J. Metala
IPC分类号： G01B7/00 , G01B7/14 , G01V3/10 , G01V15/00
CPC分类号： G01B7/14 , G01V15/00
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.

3. 发明授权

US5161413A Apparatus and method for guided inspection of an object 失效
标题翻译：用于引导检查物体的装置和方法
公开(公告)号：US5161413A
公开(公告)日：1992-11-10
申请号：US666323
申请日：1991-03-08
申请人： Warren R. Junker , Michael J. Metala , William G. Clark, Jr.
发明人： Warren R. Junker , Michael J. Metala , William G. Clark, Jr.
IPC分类号： G01N29/22 , G01N29/265
CPC分类号： G01N29/265 , G01N29/223 , G01N2291/044
摘要： A device and method for guided testing of an object, and in particular, an internal structural component in an object, using non-destructive ultrasonic techniques is provided. A housing containing at least one ultrasonic transducer probe is adapted to be placed directly on the surface of the object to be tested. Eddy current probes are provided in the housing to guide the ultrasonic probe such that the ultrasonic energy will be directed at the appropriate internal structural design component of the object to be inspected. A microcomputer is then used to record the data obtained using ultrasonic signals and the position on the object using the information designed from the eddy current probes.
摘要翻译：提供了一种用于使用非破坏性超声波技术来引导测试对象，特别是物体中的内部结构部件的装置和方法。包含至少一个超声换能器探头的壳体适于直接放置在被测试物体的表面上。涡流探针设置在壳体中以引导超声波探头，使得超声能量将被引导到待检查对象的适当的内部结构设计部件。然后使用微型计算机使用由涡流探针设计的信息记录使用超声信号获得的数据和物体上的位置。

4. 发明授权

US5061364A Diagnostic filter for detecting conductive and semiconductive particles in a fluid stream 失效
标题翻译：用于检测流体流中的导电和半导体颗粒的诊断过滤器
公开(公告)号：US5061364A
公开(公告)日：1991-10-29
申请号：US470471
申请日：1990-01-26
申请人： Michael J. Metala , William G. Clark, Jr.
发明人： Michael J. Metala , William G. Clark, Jr.
IPC分类号： G01N1/02 , B01D35/143 , G01N1/10 , G01N15/00 , G01N15/06 , G01N27/72 , G01V3/02
CPC分类号： G01N15/0618 , B01D35/143
摘要： A diagnostic filter device for monitoring electrically conductive and semiconductive particles entrained by a fluid, composed of:a filter element (4) disposed to receive the fluid and to permit passage of the fluid while retaining particles entrained in the fluid;a component (8) disposed for producing an alternating electromagnetic field which extends across at least one region of the filter element (4); andan eddy current detecting instrument (12) connected to the electromagnetic field producing component (8) for detecting the influence on the field of particles in the filter element region.
摘要翻译：一种用于监测由流体夹带的导电和半导电颗粒的诊断过滤装置，其由以下部分组成：过滤元件（4），其布置成接收流体并允许流体通过，同时保持夹带在流体中的颗粒; 设置成用于产生跨过过滤元件（4）的至少一个区域延伸的交变电磁场的部件（8）; 以及连接到所述电磁场产生部件（8）的涡流检测仪器（12），用于检测对过滤元件区域中的粒子的场的影响。

5. 发明授权

US4955235A Apparatus and method for providing a combined ultrasonic and eddy current inspection of a metallic body 失效
标题翻译：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。

6. 发明授权

US4856337A Apparatus and method for providing a combined ultrasonic and eddy current inspection of a tube 失效
标题翻译：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.

7. 发明授权

US4855677A Multiple coil eddy current probe and method of flaw detection 失效
标题翻译：多线圈涡流探头和探伤方法
公开(公告)号：US4855677A
公开(公告)日：1989-08-08
申请号：US167289
申请日：1988-03-11
申请人： William G. Clark, Jr. , Michael J. Metala
发明人： William G. Clark, Jr. , Michael J. Metala
IPC分类号： G01N27/90
CPC分类号： G01N27/9046 , G01N27/904
摘要： An improved eddy current probe system and method for simultaneously detecting different types of flaws at different depths within a metallic wall, such as a section of Inconel tubing, is disclosed herein. The system comprises a current generator for generating alternating currents of substantially different frequencies, a probe head including first, second and third concentrically arranged coils in separate communication with the current generator, shielding material disposed between the coils for preventing cross talk between each coil and the pulsating magnetic field of the coils adjacent to it, and a detector circuit which may include an inductive bridge for providing an electrical output representative of the impedance changes in the respective coils. In operation, each of the coils conduct currents having substantially different frequencies, the highest frequency being conducted by the smallest-diametered coil and the lowest frequency being conducted by the largest-diametered coil. The different levels of magnetic field penetration provided by the coils as it is helically moved around the inside surface of a section on Inconel tubing not only allows the probe system to detect diverse kinds of flaws such as cracks, pits, or regions of thinning, but also flaws located at different depths throughout the tube wall. In the method of the invention, a computer is used to adjust the frequencies of the alternating currents conducted through the coils during the scanning operation in order to maximize the impedance changes in each coil, thereby maximizing the resolution of the probe system.

8. 发明授权

US4746858A Non destructive testing for creep damage of a ferromagnetic workpiece 失效
标题翻译：铁磁性工件蠕变损伤的无损检测
公开(公告)号：US4746858A
公开(公告)日：1988-05-24
申请号：US2538
申请日：1987-01-12
申请人： Michael J. Metala , William G. Clark, Jr. , Warren R. Junker
发明人： Michael J. Metala , William G. Clark, Jr. , Warren R. Junker
IPC分类号： G01N3/18 , G01N3/00 , G01N27/90 , G01R33/12 , G01N27/72
CPC分类号： G01N27/9046
摘要： Rapid nondestructive testing of a ferromagnetic workpiece for creep damage is carried out by placing an eddy current coil adjacent to the workpiece, passing an alternating current through the coil, measuring the eddy current response as influenced by the workpiece, and comparing the current measurement to a current calibrated to known creep damage for the given ferromagnetic material. Correlations of the eddy current response to creep rate and time to failure are generated from creep rupture tests performed on specimens of the given material subjected to varying conditions of time, temperature and stress. Qualitative tests can also be performed to identify the point of greatest creep damage by passing the eddy current coil over the workpiece to find the location of the lowest eddy current response. Conventional creep damage tests can then be performed at that location if desired.
摘要翻译：通过将涡电流线圈放置在工件附近，使交流电流通过线圈，测量受工件影响的涡流响应，并将电流测量值与一个电流测量值进行比较，进行用于蠕变损伤的铁磁性工件的快速非破坏性测试电流根据已知的铁磁材料的蠕变损伤进行校准。涡流响应对蠕变速率和故障时间的相关性是由对经受不同时间，温度和应力条件的给定材料的试样进行的蠕变断裂试验产生的。也可以进行定性测试，以通过将涡流线圈通过工件以找到最低涡流响应的位置来识别最大蠕变损伤点。如果需要，可以在该位置执行常规的蠕变损伤测试。

9. 发明授权

US5785913A Method of magnetically forming a particle filled polymer having enhanced material characteristics 失效
标题翻译：磁性形成具有增强的材料特性的填充颗粒的聚合物的方法
公开(公告)号：US5785913A
公开(公告)日：1998-07-28
申请号：US655794
申请日：1996-05-30
申请人： William G. Clark, Jr. , William A. Byers
发明人： William G. Clark, Jr. , William A. Byers
IPC分类号： H01B1/22 , H01F41/16 , H02G9/02 , B27N3/02
CPC分类号： H02G9/02 , H01B1/22 , H01F41/16
摘要： A method of magnetically fabricating a particle filled polymer having improved mechanical, electrical, or thermal surface characteristics. Finely divided ferrite particles are first mixed into a hardenable, liquid polymeric material. Next, the particles are magnetically oriented within the material along a selected pattern characterized by a gradient of increasing particle density toward a surface of the material. The polymeric material is then cured into a hardened state in order to affix the pattern of particles therein. The particles may be coated with a hardening material, such as diamond, and attracted to the surface of the material in order to impart desired wear and erosion resistance to the resulting composite. Alternatively, the particles may be coated with a electrically or thermally conducting material, such as silver, and magnetically pulled into intimate contact with one another to impart a high level of electrical or thermal conductivity to the resulting composite. The large particulate surface area provided by the magnetically obtained particle contact allows high levels of electrical or thermal conductivity to be obtained with the mixing of only small amounts of particulate matter to the polymer.
摘要翻译：一种磁性制造具有改进的机械，电或热表面特性的填充颗粒的聚合物的方法。细分铁素体颗粒首先混合成可硬化的液体聚合材料。接下来，颗粒沿着选定的图案在材料内磁取向，其特征在于朝向材料表面的颗粒密度增加的梯度。然后将聚合物材料固化成硬化状态，以便将颗粒图案固定在其中。颗粒可以用诸如金刚石的硬化材料涂覆，并且被吸引到材料的表面，以便赋予所得复合材料所需的耐磨性和耐腐蚀性。或者，颗粒可以用诸如银的导电或导热材料涂覆，并且磁力地彼此紧密接触以赋予所得复合材料高的电导率或导热性。由磁性获得的颗粒接触提供的大的颗粒表面积允许通过仅将少量的颗粒物质混合到聚合物中而获得高水平的电或热导率。

10. 发明授权

US5272216A System and method for remotely heating a polymeric material to a selected temperature 失效
标题翻译：将聚合物材料远程加热至选定温度的系统和方法
公开(公告)号：US5272216A
公开(公告)日：1993-12-21
申请号：US635987
申请日：1990-12-28
申请人： William G. Clark, Jr. , Robert E. Shannon , Warren R. Junker
发明人： William G. Clark, Jr. , Robert E. Shannon , Warren R. Junker
IPC分类号： B29C35/08 , B29C65/00 , B29C65/14 , B29C65/36 , B29C65/42 , B29C65/48 , B29C67/24 , B29C70/58 , B29C70/88 , B29K101/10 , B29K105/16 , H05B6/02 , C08C19/04 , C08F8/06 , C08J3/28 , H05B6/64
CPC分类号： B29C70/88 , B29C35/08 , B29C65/14 , B29C65/1425 , B29C65/1435 , B29C65/1477 , B29C65/148 , B29C65/1483 , B29C65/3612 , B29C65/4835 , B29C65/4855 , B29C65/4875 , B29C65/5021 , B29C65/5057 , B29C66/1122 , B29C66/1142 , B29C66/43 , B29C66/81267 , B29C66/83411 , B29C66/83417 , B29C66/91411 , B29C66/9161 , B29C66/919 , B29C67/247 , B29C2035/0855 , B29C65/8207 , B29C65/8215 , B29C66/71 , B29C66/73921 , B29C66/9592 , B29K2909/08 , B29K2995/0008 , B29K2995/0027
摘要： Both a system and method are provided for remotely heating a polymeric material to a selected temperature. The system generally comprises particulate ferromagnetic material dispersed throughout the polymeric material to form a composite, wherein the particulate material has a Curie temperature that corresponds to the selected heating temperature, and a source of microwave energy for remotely applying a beam of microwave energy to the polymeric composite material. Preferably, the particulate ferromagnetic material comprises only about 2 percent of the total composite by weight. The polymeric material may be compliant, thermosettable plastic, and the Curie temperature of the particulate ferromagnetic material dispersed therein may advantageously be above the curing temperature of the polymer, such that the beam from the source of microwave energy may be used to remotely join surfaces or construct joints in composite structures. Alternatively, the polymeric material may be a meltable plastic, and the Curie temperature of the particulate ferromagnetic material may be chosen to be above the temperature of fusion of the polymer to create a polymeric composite which is magnetically separable from other polymers within a solid waste facility, and which may be melted down for recycling purposes. In a variation of this embodiment, a heat actuatable degradation chemical may be dispersed through the polymeric material along with the ferro-magnetic material to create a plastic composite which is selectively degradable by the remote application of microwave energy.

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