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11.发明授权Low profile encircling ultrasonic probe for the inspection of in-situ piping in immersion mode 有权薄型环绕超声波探头，用于在浸入式模式下检查原位管道公开(公告)号：US08301401B2
公开(公告)日：2012-10-30
申请号：US12873082
申请日：2010-08-31
IPC分类号： G01B17/00
CPC分类号： G01N29/265 , G01N29/262 , G01N29/28 , G01N2291/2634
摘要： An ultrasonic probe encircles the perimeter of a target component to be ultrasonically tested and has a base and a pair of jaws pivotally mounted to the base at opposite ends of an arcuate inner surface of the base to encircle a target component with arcuate inner surfaces of the jaws as well. The inner surfaces form a coupling fluid chamber with an outer surface of the target component. Front and rear sets of seals connected to and extending along front and rear portions of the arcuate inner surfaces seal the chamber so that it can retain a coupling fluid such as water. An arcuate set of ultrasonic transducers is connected along at least one but preferably all of the arcuate inner surfaces for transmitting ultrasonic signals to the coupling fluid chamber and into the target component.
摘要翻译： 超声波探头环绕目标部件的周边进行超声波测试，并具有基座和一对夹爪，该基座和一对夹爪可枢转地安装在基座的弧形内表面的相对端处，以围绕目标部件，其中弧形内表面 颚也是。 内表面形成具有目标部件的外表面的耦合流体室。 连接到弓形内表面的前部和后部并且沿弓形内表面的前部和后部延伸的前部和后部密封件密封室，使得其可以保持诸如水的耦合流体。 一组超声波换能器沿着至少一个但优选全部的弓形内表面连接，用于将超声信号传输到耦合流体室并进入目标部件。
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12.发明申请LOW PROFILE ENCIRCLING ULTRASONIC PROBE FOR THE INSPECTION OF IN-SITU PIPING IN IMMERSION MODE 有权用于在浸没模式下检查现场管道的低剖面超声探头公开(公告)号：US20120053856A1
公开(公告)日：2012-03-01
申请号：US12873082
申请日：2010-08-31
IPC分类号： G01N29/04
CPC分类号： G01N29/265 , G01N29/262 , G01N29/28 , G01N2291/2634
摘要： An ultrasonic probe encircles the perimeter of a target component to be ultrasonically tested and has a base and a pair of jaws pivotally mounted to the base at opposite ends of an arcuate inner surface of the base to encircle a target component with arcuate inner surfaces of the jaws as well. The inner surfaces form a coupling fluid chamber with an outer surface of the target component. Front and rear sets of seals connected to and extending along front and rear portions of the arcuate inner surfaces seal the chamber so that it can retain a coupling fluid such as water. An arcuate set of ultrasonic transducers is connected along at least one but preferably all of the arcuate inner surfaces for transmitting ultrasonic signals to the coupling fluid chamber and into the target component.
摘要翻译： 超声波探头环绕目标部件的周边进行超声波测试，并具有基座和一对夹爪，该基座和一对夹爪可枢转地安装在基座的弧形内表面的相对端处，以围绕目标部件，其中弧形内表面 颚也是。 内表面形成具有目标部件的外表面的耦合流体室。 连接到弓形内表面的前部和后部并且沿弓形内表面的前部和后部延伸的前部和后部密封件密封室，使得其可以保持诸如水的耦合流体。 一组超声波换能器沿着至少一个但优选全部的弓形内表面连接，用于将超声信号传输到耦合流体室并进入目标部件。
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公开(公告)号：US20110120223A1
公开(公告)日：2011-05-26
申请号：US12916748
申请日：2010-11-01
IPC分类号： G01B17/00
CPC分类号： G01N29/28 , G01N29/265 , G01N29/44 , G01N29/4463 , G01N2291/106
摘要： A method for ultrasonically inspecting components with wavy or uneven surfaces. A multi-element array ultrasonic transducer is operated with a substantial fluid layer, such as water, between the array transducer and the component surface. This fluid layer may be maintained by immersing the component in liquid or by using a captive couplant column between the probe and the component surface. The component is scanned, measuring the two dimensional surface profile using either a mechanical stylus, laser, or ultrasonic technique. Once an accurate surface profile of the component's surface has been obtained, data processing parameters are calculated for processing the ultrasonic signals reflected from the interior of the component that eliminate beam distortion effects and reflector mis-location that would otherwise occur due to the uneven surfaces.
摘要翻译： 一种用于超声波检查具有波浪或不平坦表面的部件的方法。 多阵列阵列超声波换能器在阵列换能器和部件表面之间用诸如水的实质流体层操作。 该流体层可以通过将组分浸入液体中或通过在探针和组件表面之间使用捕获性耦合剂柱来维持。 扫描组件，使用机械触针，激光或超声波技术测量二维表面轮廓。 一旦已经获得了组件表面的精确表面轮廓，则计算数据处理参数，用于处理从组件内部反射的超声信号，消除由于不平坦表面而导致的波束失真效应和反射器错位。
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14.发明授权Electromagnetic acoustic transducer (EMAT) inspection of tubes for surface defects 有权用于表面缺陷的管的电磁声换能器（EMAT）检查
公开(公告)号：US6164137A
公开(公告)日：2000-12-26
申请号：US243592
申请日：1999-02-03
CPC分类号： G01N29/2412 , G01N29/07 , G01N2291/015 , G01N2291/0423 , G01N2291/048 , G01N2291/103 , G01N2291/2634
摘要： An EMAT testing device for nondestructively testing tubes for surface defects and displaying the results has a EMAT transmitter arranged collinear with a pair of EMAT receivers. The EMAT receivers each receive a pair of oppositely propagating circumferential acoustic surface waves from the transmitter at different times and the relative amplitudes of the received waves are compared to located defects adjacent the receivers in the tube.
摘要翻译： 用于非破坏性地测试用于表面缺陷的管和用于显示结果的EMAT测试装置具有与一对EMAT接收器共线的EMAT发射器。 EMAT接收器在不同时间接收来自发射器的一对相反传播的周向声表面波，并将接收波的相对幅度与管中的接收器相邻的定位缺陷进行比较。
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15.发明授权Spring release mechanism for electromagnetic acoustic transducer (EMAT) probe 失效电磁换能器（EMAT）探头弹簧释放机构
公开(公告)号：US5741973A
公开(公告)日：1998-04-21
申请号：US394683
申请日：1995-02-24
CPC分类号： G01N29/2412 , G01N29/225 , Y10S33/01
摘要： In an electromagnetic acoustic transducer or EMAT, a spring release mechanism comprises a frame or carriage and, if necessary at least one movement element for permitting movement across a surface of a workpiece. A magnet is movable against the surface past the frame or carriage and a base supports the magnet. The spring is connected between the frame and the base for biasing the base away from the frame to urge the magnet away from the surface.
摘要翻译： 在电磁声换能器或EMAT中，弹簧释放机构包括框架或托架，并且如果需要，还包括用于允许跨过工件表面移动的至少一个移动元件。 磁体可抵靠表面移动通过框架或托架，并且基座支撑磁体。 弹簧连接在框架和基座之间，用于将基座偏离框架以将磁体推离表面。
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公开(公告)号：US09188567B2
公开(公告)日：2015-11-17
申请号：US12916748
申请日：2010-11-01
IPC分类号： G01N29/04 , G01N29/28 , G01N29/44 , G01N29/265
CPC分类号： G01N29/28 , G01N29/265 , G01N29/44 , G01N29/4463 , G01N2291/106
摘要： A method for ultrasonically inspecting components with wavy or uneven surfaces. A multi-element array ultrasonic transducer is operated with a substantial fluid layer, such as water, between the array transducer and the component surface. This fluid layer may be maintained by immersing the component in liquid or by using a captive couplant column between the probe and the component surface. The component is scanned, measuring the two dimensional surface profile using either a mechanical stylus, laser, or ultrasonic technique. Once an accurate surface profile of the component's surface has been obtained, data processing parameters are calculated for processing the ultrasonic signals reflected from the interior of the component that eliminate beam distortion effects and reflector mis-location that would otherwise occur due to the uneven surfaces.
摘要翻译： 一种用于超声波检查具有波浪或不平坦表面的部件的方法。 多阵列阵列超声波换能器在阵列换能器和部件表面之间用诸如水的实质流体层操作。 该流体层可以通过将组分浸入液体中或通过在探针和组件表面之间使用捕获性耦合剂柱来维持。 扫描组件，使用机械触针，激光或超声波技术测量二维表面轮廓。 一旦已经获得了组件表面的精确表面轮廓，则计算数据处理参数，用于处理从组件内部反射的超声信号，消除由于不平坦表面而导致的波束失真效应和反射器错位。
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公开(公告)号：US09038471B2
公开(公告)日：2015-05-26
申请号：US12916748
申请日：2010-11-01
IPC分类号： G01N29/04 , G01N29/28 , G01N29/44 , G01N29/265
摘要： A method for ultrasonically inspecting components with wavy or uneven surfaces. A multi-element array ultrasonic transducer is operated with a substantial fluid layer, such as water, between the array transducer and the component surface. This fluid layer may be maintained by immersing the component in liquid or by using a captive couplant column between the probe and the component surface. The component is scanned, measuring the two dimensional surface profile using either a mechanical stylus, laser, or ultrasonic technique. Once an accurate surface profile of the component's surface has been obtained, data processing parameters are calculated for processing the ultrasonic signals reflected from the interior of the component that eliminate beam distortion effects and reflector mis-location that would otherwise occur due to the uneven surfaces.
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公开(公告)号：US20080121040A1
公开(公告)日：2008-05-29
申请号：US11564346
申请日：2006-11-29
IPC分类号： G01N29/04
CPC分类号： G01N29/28 , G01N29/265 , G01N29/44 , G01N29/4463 , G01N2291/106
摘要： A method for ultrasonically inspecting components with wavy or uneven surfaces. A multi-element array ultrasonic transducer is operated with a substantial fluid layer, such as water, between the array transducer and the component surface. This fluid layer may be maintained by immersing the component in liquid or by using a captive couplant column between the probe and the component surface. The component is scanned, measuring the two dimensional surface profile using either a mechanical stylus, laser, or ultrasonic technique. Once an accurate surface profile of the component's surface has been obtained, data processing parameters are calculated for processing the ultrasonic signals reflected from the interior of the component that eliminate beam distortion effects and reflector mis-location that would otherwise occur due to the uneven surfaces.
摘要翻译： 一种用于超声波检查具有波浪或不平坦表面的部件的方法。 多阵列阵列超声波换能器在阵列换能器和部件表面之间用诸如水的实质流体层操作。 该流体层可以通过将组分浸入液体中或通过在探针和组件表面之间使用捕获性耦合剂柱来维持。 扫描组件，使用机械触针，激光或超声波技术测量二维表面轮廓。 一旦已经获得了组件表面的精确表面轮廓，则计算数据处理参数，用于处理从组件内部反射的超声信号，消除由于不平坦表面而导致的波束失真效应和反射器错位。
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19.发明授权Electromagnetic acoustic transducer (EMAT) inspection of cracks in boiler tubes 失效锅炉管中裂纹的电磁换能器（EMAT）检测公开(公告)号：US06282964B1
公开(公告)日：2001-09-04
申请号：US09398621
申请日：1999-09-17
IPC分类号： G01N2900
CPC分类号： G01N29/2412 , G01M3/24 , G01N29/0645 , G01N29/223 , G01N2291/0423 , G01N2291/2634
摘要： An EMAT device for non-destructive inspection of the surface of a tube for cracks using acoustic surface waves includes a pulsed magnet having an active surface for facing the surface of a tube to be inspected. A receive emat coil is on the active surface and a transmit emat coil is on the opposite surface of the receive coil. The transmit emat coil has a scan surface for scanning over the tube surface. A transmitter for generating and transmitting an RF signal to the transmit emat coil is provided for generating a transmitted acoustic wave signal along the tube, the transmitted wave creating a reflected acoustic wave if a crack in the tube is encountered, the reflected wave generating a reflection signal in the receive emat coil. A receiver is connected to the receive emat coil for receiving the reflection signal. A digital computer is connected to the receiver for receiving and for processing the reflection signal and a display displays information about a crack in the tube which created the reflected acoustic wave and resulting reflection signal.
摘要翻译： 使用声表面波对用于裂纹的管表面进行非破坏性检查的EMAT装置包括具有用于面对要检查的管的表面的活性表面的脉冲磁体。 接收发射线圈位于有源表面上，发射极化线圈位于接收线圈的相对表面上。 发射Emat线圈具有用于在管表面上扫描的扫描表面。 用于产生和发送RF信号到发射发射线圈的发射器用于沿着管产生传输的声波信号，如果遇到管中的裂纹，发射波产生反射的声波，反射波产生反射 信号在接收emat线圈。 接收器连接到接收发射线圈以接收反射信号。 数字计算机连接到接收器，用于接收和处理反射信号，并且显示器显示关于产生反射的声波和产生的反射信号的管中裂纹的信息。
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20.发明授权Electromagnetic acoustic transducer (EMAT) for ultrasonic inspection of liquids in containers 失效用于超声波检查容器中液体的电磁声换能器（EMAT）
公开(公告)号：US5837898A
公开(公告)日：1998-11-17
申请号：US704967
申请日：1996-08-29
IPC分类号： G01F23/284 , G01F23/296 , G01N29/024 , G01N29/032 , G01N29/24 , G01N29/20
CPC分类号： G01N29/024 , G01F23/284 , G01F23/2962 , G01N29/032 , G01N29/2412 , G01N2291/015 , G01N2291/02818 , G01N2291/02836 , G01N2291/0421 , G01N2291/0422
摘要： An ultrasonic inspection technique using a specially designed electromagnetic acoustic transducer (EMAT) launches and receives longitudinal ultrasonic waves into a thin metal wall or thin metal foil seal of a container, causing it to vibrate and launch ultrasonic compressional waves into liquid contained therein. The contents of plastic containers having a metal foil seal forming one wall are easily inspected. The EMAT establishes a magnetic field in the surface of the metal parallel to the surface. Radio frequency (RF) eddy currents are also induced by the EMAT in the surface of the metal. A Lorentz force is generated in the metal surface according the vector product of J, the current density, and H, the magnetic field, and the force generated by the interaction of the perpendicular components of the magnetic field H and the eddy currents J is directed normally to the surface of the metal. This normal force oscillates with the frequency of the induced eddy currents creating ultrasonic compressional waves which propagate normal to the surface of the metal. In such thin-walled metal containers or thin metal foil seals, where the thickness of the metal is much shorter than the ultrasonic wavelength in the metal, the generation and reception process is analogous to the operation of a loudspeaker in air. In this application, the thin metal wall or foil acts as a membrane, with the Lorentz forces generated in the wall or foil causing the metal membrane to vibrate, generating ultrasonic waves in the liquid. Because the thin wall or foil is much more compliant than a thick piece of metal, much larger displacements are generated at the metal-liquid interface than for the thick-wall case, resulting in much larger signal amplitudes than in the thick-wall case.
摘要翻译： 使用专门设计的电磁换能器（EMAT）的超声波检查技术将容器的薄金属壁或薄金属箔密封件的纵向超声波发射并接收，使其对包含在其中的液体振动并发射超声压缩波。 具有形成一个壁的金属箔密封件的塑料容器的内容物容易检查。 EMAT在平行于表面的金属表面建立磁场。 射频（RF）涡流也由金属表面的EMAT引起。 根据J的矢量积，电流密度H，磁场和由磁场H的垂直分量与涡流J的相互作用产生的力在金属表面中产生洛伦兹力 通常到金属表面。 该法向力随感应涡流的频率振荡，产生垂直于金属表面传播的超声压缩波。 在这种薄壁金属容器或薄金属箔密封件中，金属的厚度比金属中的超声波长度短得多，生成和接收过程类似于扬声器在空气中的操作。 在这种应用中，薄金属壁或薄膜用作膜，在壁或箔中产生的洛伦兹力导致金属膜振动，在液体中产生超声波。 由于薄壁或箔片比厚的金属片更柔顺，在金属 - 液体界面处产生比厚壁壳体更大的位移，导致比厚壁情况下更大的信号幅度。
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