公开(公告)号：US11579119B1

公开(公告)日：2023-02-14

申请号：US17180072

申请日：2021-02-19

Applicant: Arthur K Fox ,  William Geoffrey Callahan

Inventor： Arthur K Fox ,  William Geoffrey Callahan

IPC: G01N27/82 ,  G01N27/87 ,  F16L55/28 ,  F16L101/30

Abstract: A set of radial springs to bias the sensor arms of an inline pipeline inspection tool radially outward towards the pipe wall. The springs are resilient clips typically made of metal which bias adjacent sensor arms away from one another and radially outward. There are two sets of springs, a forward set and a rearward set which operate independent of each other. Each set of springs operates on a plane which is perpendicular to the axis of the body of the tool and perpendicular to the planes upon which the sensor arms extend.

公开(公告)号：US20220390415A1

公开(公告)日：2022-12-08

申请号：US17426768

申请日：2020-03-31

Applicant: China Institute of Water Resources and Hydropower Research

Inventor： Feng Shang ,  Guoxin Zhang ,  Bo Yang ,  Yi Liu

IPC: G01N27/87

Abstract: A device and method for detecting wire breakage are provided. The wire breakage detection device includes an excitation coil, a detection coil, and a processor. The detection signal input end of the processor is connected to the detection coil. The excitation coil and the detection coil are located on two sides of a longitudinal section of an inner wall of a to-be-detected pipeline respectively, wherein a conductive closed structure is formed continuously and annularly in the to-be-detected pipeline, the axis of the excitation coil is parallel to the axis of the to-be-detected pipeline, and the axis of the detection coil is perpendicular to the axis of the to-be-detected pipeline. The excitation coil is configured to generate an alternating magnetic field according to an alternating electromagnetic signal, wherein an induced current and an electromagnetic field of the induced current are generated by the to-be-detected pipeline located in the alternating magnetic field.

公开(公告)号：US11493480B2

公开(公告)日：2022-11-08

申请号：US17068448

申请日：2020-10-12

Applicant: Russell NDE Systems Inc.

Inventor： David E. Russell ,  Yuwu Yu ,  Hoan Nguyen ,  Brian Thai ,  Daniel Lingnau ,  Ellen Jin

IPC: G01N27/904 ,  G01N27/87

Abstract: A probe including a plurality of links connected together in series, wherein the plurality of links create a flexible compartment containing at least a first and second exciter means and at least one pair of detector means, wherein the exciter means are driven by an alternating current to produce an alternating magnetic field, and the detector means are configured to detect the magnetic field of an induced eddy current caused by the exciter means magnetic field.

公开(公告)号：US10942083B2

公开(公告)日：2021-03-09

申请号：US15577444

申请日：2016-05-25

Applicant: Advanced Engineering Solutions Ltd.

Inventor： Malcolm Wayman ,  Richard J. Treece

IPC: G01M3/28 ,  G01N27/87 ,  G01N27/82 ,  G01N17/00 ,  G01M3/24 ,  G01M3/40

Abstract: This invention relates to a method for assessing the condition of at least a portion of a pipeline to predict the possibility of occurrence of leakage from the pipeline. The method includes the steps of identifying at least one portion of the pipeline to be assessed, undertaking an assessment of the wall of the portion to identify defects located thereon and the assessment includes identifying the depth, width and length of identified defects and including reference to a value for the pressure of the fluid passing through the pipeline portion. This allows the condition of the pipeline at the portions of the same which are most critical to be identified and this is used to provide an indication of the pipeline as a whole without the need to investigate the entire pipeline.

公开(公告)号：US20200232947A1

公开(公告)日：2020-07-23

申请号：US16746256

申请日：2020-01-17

Applicant: Zetec Inc.

Inventor： Tom O'Dell

IPC: G01N27/90 ,  G01N27/87

Abstract: An eddy current instrument for non-destructive testing of a tubular metallic object, the instrument comprising a probe head with probe coils and probe coil signal conditioning and analog to digital conversion electronics and a probe connector module with a processor and probe coil excitation signal generation electronics. The probe connector processor is configured to interface to an external computing device, which may be a personal computer. The probe head and probe connector module may be connected by a rigid shaft or by a flexible coupling.

公开(公告)号：US10514362B2

公开(公告)日：2019-12-24

申请号：US15766160

申请日：2015-11-02

Applicant: MITSUBISHI ELECTRIC CORPORATION

Inventor： Takashi Yoshioka ,  Takayuki Kotera ,  Kazuaki Hirota ,  Tomokazu Hoshinoo ,  Fumitake Takahashi ,  Masao Akashi ,  Tetsuro Seki

IPC: G01N27/87

Abstract: Provided is a wire rope flaw detector including a magnetizer configured to form a main magnetic flux in a part of a wire rope in a longitudinal direction thereof. A plurality of search coils are configured to detect a leakage flux that occurs from a damaged part of the wire rope in a segment in which the main magnetic flux is formed. A control unit is configured to detect induced voltages generated in the plurality of search coils. Further, the control unit is configured to superimpose voltage waveforms of the plurality of search coils on one another while shifting the voltage waveforms by a time calculated based on an interval between the plurality of search coils adjacent to each other and on a relative moving speed of the wire rope with respect to the magnetizer, to thereby amplify a peak of the induced voltage.

公开(公告)号：US20180164250A1

公开(公告)日：2018-06-14

申请号：US15840617

申请日：2017-12-13

Applicant: ROLLS-ROYCE plc

Inventor： Chow Cher WONG ,  Waled HASSAN ,  David FAN ,  Sylvie J. CASTAGNE ,  Balasubramanian NAGARAJAN ,  Swaminathan ANNAMALAI

IPC: G01N27/87 ,  G01N27/90 ,  G01R1/067 ,  G01N27/02 ,  B24B49/10

CPC classification number: G01N27/87 ,  B24B49/10 ,  B24B49/105 ,  G01N27/02 ,  G01N27/025 ,  G01N27/90 ,  G01N27/9033 ,  G01N27/9046 ,  G01R1/067 ,  G01R1/07 ,  G01R27/2611

Abstract: An eddy current probe comprises a first planar coil, a second planar coil and a flexible substrate. The first coil comprises a first conductor having a spiral geometry, and the second coil comprises a second conductor having a spiral geometry. The first conductor is arranged concentrically with the second conductor, with the first conductor being juxtaposed with the second conductor, and the concentrically arranged first and second conductors are embedded within the flexible substrate.

公开(公告)号：US09989436B1

公开(公告)日：2018-06-05

申请号：US15631959

申请日：2017-06-23

Applicant: Willowstick Technologies, LLC

Inventor： Val Kofoed ,  Michael Jessop

IPC: G08B1/00 ,  G01M3/40 ,  G01M3/00 ,  F17D5/06 ,  G01N27/87 ,  G01N27/02

CPC classification number: G01M3/40 ,  F17D5/06 ,  G01M3/005 ,  G01N27/02 ,  G01N27/87

Abstract: Method and device for detecting the location and magnitude of a leak in a pipe by measuring aberrant electromagnetic radiation from within the pipe. A probe comprising three orthogonally oriented coils coupled to a control unit and an electrode are inserted into a pipeline trailing a metered wire. The coils detect an anomalous current flow when a leak is encountered, enabling the magnitude and location of the leak to be detected.

公开(公告)号：US08941376B2

公开(公告)日：2015-01-27

申请号：US13131454

申请日：2009-11-18

Applicant: Michael Kaack ,  Stefan Nitsche ,  André Germes

Inventor： Michael Kaack ,  Stefan Nitsche ,  André Germes

IPC: G01N27/82 ,  G01R33/12 ,  G01N27/87

CPC classification number: G01R33/1215 ,  G01N27/87

Abstract: The invention relates to a method for the automated measurement of the residual magnetic field strength of magnetized ferromagnetic workpieces, especially steel tubes, the residual magnetic field exiting the face of the tube end being measured by means of a measuring probe. Instead of directly measuring the residual field strength on the face, the curve of at least one magnetic field component is measured on the outer surface of the tube at least in the region of the tube ends and beyond the tube ends and the residual field strength on the face is inferred on the basis of the previously determined correlations between the residual field strength measured on the face and on the tube surface.

Abstract translation: 本发明涉及一种用于自动测量磁化铁磁性工件，特别是钢管的残余磁场强度的方法，通过测量探头测量离开管端面的剩余磁场。 代替直接测量面上的残余场强，至少在管的外表面上测量至少一个磁场分量的曲线，该曲线至少在管末端的区域中并超过管端，残余场强度 基于在面上和管表面上测量的残余磁场强度之间先前确定的相关性来推断该面。

公开(公告)号：US20110030478A1

公开(公告)日：2011-02-10

申请号：US12575650

申请日：2009-10-08

Applicant: Minsu Park ,  Jangmyong Woo ,  Gyungsub Kim ,  Sanghoon Choi

Inventor： Minsu Park ,  Jangmyong Woo ,  Gyungsub Kim ,  Sanghoon Choi

IPC: G01N29/04 ,  G01N27/87

CPC classification number: F22B37/005 ,  G01N21/954 ,  G21C17/017

Abstract: An inspecting device including a detachable probe has a link structure, and thus a subject having various diameters is tested. In addition, since various probes are changeably used in a scanner housing, ultrasonic wave testing and eddy current testing are simultaneously performed.

Abstract translation: 包括可拆卸探针的检查装置具有连杆结构，因此测试具有各种直径的被检体。 此外，由于扫描器壳体中可以使用各种探针，因此同时执行超声波测试和涡流测试。