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81. 发明申请

US20080042645A1 Method and Device for Testing Pipes in a Non-Destructive Manner 失效
标题翻译：以非破坏性方式测试管道的方法和装置
公开(公告)号：US20080042645A1
公开(公告)日：2008-02-21
申请号：US11631743
申请日：2005-06-10
申请人： Michael Kaack , Stefan Nitsche , Thomas Orth
发明人： Michael Kaack , Stefan Nitsche , Thomas Orth
IPC分类号： G01N27/83 , G01N27/87
CPC分类号： G01N27/87
摘要： The present invention pertains to a method for the nondestructive testing of pipes made of ferromagnetic steel by means of a stray flux, in which the pipe, which is moving in the longitudinal direction and alternatively additionally rotating, is magnetized by a constant field, and the generated magnetic flux is transmitted into the pipe in a contactless manner, and the flaws that are located in the near-surface area of the outer or inner surface of the pipe bring about magnetic stray fluxes, which emerge from the pipe surface and are detected by means of sensors. The amplitudes, preferably of the horizontal field component of the magnetic stray flux, which vary in the vertical direction, are detected, on the one hand, at a near-surface distance from the pipe outer surface, and, on the other hand, at a distance lying further remotely therefrom, and the detected signals are related to one another. Furthermore, the present invention pertains to a device for carrying out the method.
摘要翻译：本发明涉及一种用于通过杂散焊剂对由铁磁性钢制成的管进行非破坏性测试的方法，其中沿着纵向方向移动并另外旋转的管被恒定磁场磁化，并且产生的磁通以无接触的方式传递到管中，并且位于管的外表面或内表面的近表面区域中的缺陷产生从管表面出现并由管表面检测的磁性杂散磁通传感器手段一方面，检测在垂直方向上变化的磁性杂散磁通的水平场分量的幅度，一方面与管外表面的近表面距离，另一方面，在距离更远的距离，并且检测到的信号彼此相关。此外，本发明涉及一种用于执行该方法的装置。

82. 发明授权

US5825182A Nondestructive testing system using a SQUID 失效
标题翻译：使用SQUID的非破坏性测试系统
公开(公告)号：US5825182A
公开(公告)日：1998-10-20
申请号：US325813
申请日：1994-10-19
申请人： Satoshi Nakayama , Kazuo Chinone , Akikazu Odawara , Tatsuaki Ataka
发明人： Satoshi Nakayama , Kazuo Chinone , Akikazu Odawara , Tatsuaki Ataka
IPC分类号： G01N27/82 , G01N27/83 , G01R33/035 , G01N27/87
CPC分类号： G01R33/0358 , G01N27/82
摘要： In order to enhance the sensitivity of a nondestructive testing system, a pair of superconducting coils are disposed in the same plane such that a current flowing through the respective coils when exposed to a uniform magnetic field cancels out. As a result of this configuration, the detection coils are immune to noise, offset fields or other uniform ambient phenomena. In one embodiment, the nondestructive testing unit includes a plurality of detection coils, a SQUID having a pair of connectors for connection to the detection coils, a probe for supporting the detection coils and the SQUID in a coolant, a cryostat for supporting the probe and for keeping the coolant constant, a controller for processing a signal transmitted from the SQUID, and a display device for displaying the result of the processing. At least two detection coils are disposed in the same plane, are directly connected to the SQUID and are integrated on a semiconductor substrate.
摘要翻译：为了提高无损检测系统的灵敏度，将一对超导线圈设置在同一平面上，使得暴露于均匀磁场时流过各线圈的电流抵消。作为这种配置的结果，检测线圈不受噪声，偏移场或其他均匀的环境现象的影响。在一个实施例中，非破坏性测试单元包括多个检测线圈，SQUID具有用于连接到检测线圈的一对连接器，用于支撑检测线圈的探针和冷却剂中的SQUID，用于支撑探针的低温恒温器，为了保持冷却剂不变，用于处理从SQUID发送的信号的控制器以及用于显示处理结果的显示装置。至少两个检测线圈被布置在同一平面中，直接连接到SQUID并被集成在半导体衬底上。

83. 发明授权

US5293119A Electromagnetic microscope for evaluation of electrically conductive and magnetic materials 失效
标题翻译：用于评估导电和磁性材料的电磁显微镜
公开(公告)号：US5293119A
公开(公告)日：1994-03-08
申请号：US837967
申请日：1992-02-20
申请人： Walter N. Podney
发明人： Walter N. Podney
IPC分类号： G01N27/82 , G01N27/90 , G01R33/035 , G01R33/10 , G01N27/87
CPC分类号： G01N27/82 , G01N27/902 , G01R33/0358 , G01R33/10 , Y10S505/842
摘要： An instrument for non destructive evaluation (NDE) is called an electromagnetic microscope, formed by superconductive microprobes arrayed in parallel rows. When moved over a test piece, the array generates a scanned image of flaws, stress variations or changes in composition. Each microprobe has a drive coil a few mm in radius that encircles pickup loops forming a concentric, coplanar gradiometer 1 mm or less in diameter, coupled to a superconducting quantum interference device (SQUID). Drive coils transmit an oscillating magnetic field that induces eddy or magnetization currents in conductive or ferromagnetic materials, respectively. The gradiometer senses distortions in paths of induced currents. The sensitivity of SQUIDs increases sensitivity, penetration depth, and spatial resolution of flaws.
摘要翻译：非破坏性评估仪（NDE）称为电磁显微镜，由平行排列的超导微探针形成。当移动到测试件上时，该阵列产生瑕疵，应力变化或组成变化的扫描图像。每个微探针具有半径为几毫米的驱动线圈，其环绕拾音器环，其形成直径为1mm或更小的同心直角的共面梯度，耦合到超导量子干涉装置（SQUID）。驱动线圈传输振荡磁场，分别在导电或铁磁材料中产生涡流或磁化电流。梯度仪感应感应电流路径的失真。 SQUIDs的灵敏度提高了灵敏度，穿透深度和缺陷的空间分辨率。

84. 发明授权

US4788499A Method and eddy current test probe for the inspection of screws for nuclear reactor pressure vessels 失效
标题翻译：用于检查核反应堆压力容器螺钉的方法和涡流试验探头
公开(公告)号：US4788499A
公开(公告)日：1988-11-29
申请号：US795340
申请日：1985-11-06
申请人： Werner Meier , Edgar Friedrich , Erich Modlich
发明人： Werner Meier , Edgar Friedrich , Erich Modlich
IPC分类号： G01N27/87 , G01B5/20 , G01B7/00 , G01B7/34 , G01N27/90 , G21C17/00
CPC分类号： G01N27/902 , G01N27/9033
摘要： A method for the inspection of screws with an eddy current test probe including an insulating material body having a linear contact surface and at least one coil disposed in the body, includes orienting the coil transverse to threads of a reactor pressure vessel setscrew to be inspected, feeding high-frequency alternative current through the at least one coil, generating a coil field covering at least two threads, and guiding the linear contact surface along the threads, and a device for carrying out the method.
摘要翻译：一种用涡流检测探头检查螺丝的方法，该探针包括具有线性接触表面的绝缘材料主体和设置在本体中的至少一个线圈，包括将线圈横向定向到待检查的反应堆压力容器固定螺丝的螺纹，通过所述至少一个线圈馈送高频替代电流，产生覆盖至少两个线的线圈场，以及沿所述线引导所述线性接触表面，以及用于执行所述方法的装置。

85. 发明授权

US4703264A Self-orienting conduit probe 失效
标题翻译：自取导管探头
公开(公告)号：US4703264A
公开(公告)日：1987-10-27
申请号：US732999
申请日：1985-05-13
申请人： Lawrence J. Edwards
发明人： Lawrence J. Edwards
IPC分类号： G21C17/06 , G01N21/87 , G01N27/90 , G01N29/265 , G21C17/017 , G01N27/87 , G01R33/00
CPC分类号： G01N27/902 , G01N29/265 , G21C17/017
摘要： A probe (10) for scanning the interior of a curved conduit (28) has a carrier (12) with a rotatable portion (12b). Sensor means (18) are secured to the rotatable portion (12b) and are aligned with respect to the curvature of the conduit by means of an elongated flat strip (20), secured to the rotatable portion (12b) and extending longitudinally therefrom. Driving means (14) is provided to urge the probe (10) longitudinally through the conduit (28).
摘要翻译：用于扫描弯曲管道（28）内部的探针（10）具有带有可转动部分（12b）的托架（12）。传感器装置（18）固定到可旋转部分（12b）并且通过细长的扁平条（20）相对于管道的曲率对齐，固定到可旋转部分（12b）并且从其延伸。提供驱动装置（14）以纵向推动探针（10）穿过导管（28）。

86. 发明授权

US4651093A Multiple coil eddy current probe equipped with a coil balancing device 失效
标题翻译：多线圈涡流探头配有线圈平衡装置
公开(公告)号：US4651093A
公开(公告)日：1987-03-17
申请号：US577149
申请日：1984-02-06
申请人： Jean-Marie Detriche , Didier Houche , Laurent Gachet
发明人： Jean-Marie Detriche , Didier Houche , Laurent Gachet
IPC分类号： G01N27/90 , G01N27/87 , G01R33/12
CPC分类号： G01N27/9046 , G01N27/904
摘要： The invention relates to a multiple coil eddy current probe equipped with a coil balancing device. This probe comprises several coils forming an eddy current probe supplying in each case one signal. Each coil is regulated to overvoltage by a regulating unit, which acts on the frequency of the high frequency oscillator supplying each coil. Application is to the automatic positioning of a welding torch and to the inspection of the weld.
摘要翻译：本发明涉及一种配备有线圈平衡装置的多线圈涡流探头。该探头包括形成涡流探针的多个线圈，每个情况下都提供一个信号。每个线圈通过调节单元调节为过电压，调节单元作用于提供每个线圈的高频振荡器的频率。适用于焊枪的自动定位和焊缝的检查。

87. 发明授权

US4560931A Self-propelled mobile pipeline inspection apparatus and method for inspecting pipelines 失效
标题翻译：自动移动管道检查设备及管道检查方法
公开(公告)号：US4560931A
公开(公告)日：1985-12-24
申请号：US403030
申请日：1982-07-29
申请人： Shinichi Murakami , Takao Mihara
发明人： Shinichi Murakami , Takao Mihara
IPC分类号： G01N27/82 , G01M3/00 , G01N27/90 , G01N27/87 , G01D9/00 , G01N29/04 , G03B29/00
CPC分类号： G01M3/005 , G01N27/9073
摘要： A mobile truck 10 furnished with power source and travel drive mechanism is set in a cargo oil pipe 48 to run inside to inspect and monitor the state of the inner surface of a pipe wall by means of its built-in magnetic flaw-detecting instrument 12 and video camera 14, so that the image signals taken by the video camera 14 may be reproduced and inspected on a television receiver 30 in the monitoring stations located aboard the vessel while the inspection data signals from the magnetic flaw-detecting instrument 12 may be recorded in a recorder 20 at the same time.
摘要翻译：配备有动力源和行驶驱动机构的移动式货车10设置在货油管48内部，通过其内置的磁性探伤仪12检查并监视管壁内表面的状态和视频摄像机14，使得可以在位于船上的监视站中的电视接收机30上再现和检查由摄像机14拍摄的图像信号，同时可以记录来自磁性探伤仪12的检查数据信号同时在录音机20中。

88. 发明授权

US4451787A Method and apparatus to detect randomly distributed discontinuities in different directions in a longitudinally moving web using rotating probes in overlapped paths 失效
标题翻译：使用重叠路径中的旋转探针在纵向移动的网中检测不同方向上的随机分布的不连续性的方法和装置
公开(公告)号：US4451787A
公开(公告)日：1984-05-29
申请号：US229585
申请日：1981-01-07
申请人： Karl-Gunnar Bergstrand
发明人： Karl-Gunnar Bergstrand
IPC分类号： G01N21/88 , G01N21/89 , G01N21/94 , G01N27/82 , G01N27/87 , G01N27/90 , G01N29/04 , G01N35/00 , G01N27/72 , G01R33/12
CPC分类号： G01N27/904
摘要： The invention relates to a method and a device for detecting discontinuities in materials by means of probes sensitive to said discontinuities. According to the invention the material (1) is scanned preferably in the form of a web, by at least two probes (2, 6) which during the scanning sequence are moved above the material (1) in circular paths (3) and (7) in a geometrical plane which is essentially parallel to the geometrical plane of the material web. The circular paths have essentially equal radii and at least one first circular path (3) is arranged in front of a second circular path (7) and is displaced sideways in relation to the second path in such a way that essentially every surface element of the material web is successively covered by at least two circular paths (3) and (7) with such an overlapping that every half-circle segment is sideways overlapped by a consecutive half-circle segment, all seen in the travel direction of the material web.The invention also relates to a device to carry out the above-mentioned method.
摘要翻译： PCT No.PCT / SE80 / 00135 Sec。 371日期：1981年1月7日 102（e）日期1981年1月7日PCT提交日期1980年5月9日PCT公布。出版物WO80 / 02594 日期：1980年11月27日。本发明涉及一种用于通过对所述不连续性敏感的探针来检测材料不连续性的方法和装置。根据本发明，材料（1）优选地以纤维网的形式通过至少两个探针（2,6）扫描，所述探针在扫描序列中以圆形路径（3）和（3）移动到材料（1）上方， 7）在几何平面中，其基本上平行于材料幅的几何平面。圆形路径具有基本上相等的半径，并且至少一个第一圆形路径（3）布置在第二圆形路径（7）的前面，并且相对于第二路径被侧向移位，使得基本上每个表面元件材料纤维网由至少两个圆形路径（3）和（7）连续地覆盖，使得每个半圆形段由连续的半圆形段横向重叠，全部在材料幅材的行进方向上看到。本发明还涉及一种用于执行上述方法的装置。

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