公开(公告)号：US20220291170A1

公开(公告)日：2022-09-15

申请号：US17202139

申请日：2021-03-15

申请人： PICA: Pipeline Inspection and Condition Analysis Corporation

发明人： David E. Russell ,  David Burton

IPC分类号： G01N27/9013 ,  F16L55/44 ,  G01N27/90

摘要： An in-line inspection (ILI) tool 20 for use inspecting pipelines includes a plurality of collapsible guide centralizers 100 configured and sized to correspond to the inside diameter of the pipeline being inspected. The guide centralizes 100 include wheels 102 roll along the inside wall of the pipeline being inspected to maintain the guide centralizers “centered” within the pipeline. A collapsible exciter unit centralizer 200 is positioned between collapsible guide centralizers 100 to “center” the exciter unit centralizer relative to the interior of the pipeline. The exciter unit centralizer 200 generates signals in the form of an alternating magnetic field that travel along the wall of the pipeline which in turn generates eddy current signals. The eddy current signals undergo a change if a discontinuity in the pipeline is encountered by the inspection tool 20, which signal change or deviation is detected by a collapsible detector unit centralizer 300 positioned between the collapsible guide centralizers 100.

公开(公告)号：US20220034843A1

公开(公告)日：2022-02-03

申请号：US17276449

申请日：2020-03-25

申请人： LG CHEM, LTD.

发明人： Seok Jin KIM ,  Sang Hyun KOO ,  Cha Hun KU ,  Jung Hoon LEE

IPC分类号： G01N27/9013 ,  G01V8/10 ,  G01N27/90

摘要： The present invention relates to a device for detecting a crack in a battery cell by using an eddy current, comprising: an inspection unit comprising a first sensor for inducing an eddy current and a second sensor for sensing a signal of the eddy current induced by the first sensor, wherein the inspection unit performs inspection by means of the eddy current while the battery cell is driven; a transfer unit for sequentially transferring a plurality of battery cells from a point where the battery cells are introduced to a point where the battery cells are taken out; and a control unit which is electrically connected to the inspection unit and receives, evaluates, and controls the eddy current signal sensed by the inspection unit. The device for detecting a crack in a battery cell of the present invention can detect the presence and positions of cracks generated on an electrode, an electrode tab, and a welding unit by means of a non-destructive method.

公开(公告)号：US10921287B2

公开(公告)日：2021-02-16

申请号：US15747878

申请日：2016-07-27

申请人： Zetec, Inc.

发明人： Noa M. Rensing

IPC分类号： G01N27/90 ,  G01N27/904 ,  G01N27/9013

摘要： A drive coil assembly to generate a specific spatial distribution of eddy currents within the walls of a conductive tube or pipe, which may be used in conjunction with a separate array of magnetic sensors to detect defects in the tubing wall. The drive coil assembly comprises a plurality of coils which are generally wrapped around the circumference of a cylindrical probe body, but which are further shaped with serpentine undulation in the axial direction. The undulation is characterized by a spatial amplitude, a spatial phase and a spatial frequency; typically, the spatial frequency results in an integer number of undulations around the circumference of the drive coil and the phase is chosen to uniformly distribute the lobes about the circumference. The temporal phase of the electrical current in each coil is chosen to null out net current of the assembly around the circumference.

公开(公告)号：US11435317B2

公开(公告)日：2022-09-06

申请号：US17046047

申请日：2019-04-09

申请人： JENTEK Sensors, Inc.

发明人： Neil J Goldfine ,  Todd M Dunford

IPC分类号： G01N27/9013 ,  G01N27/90

摘要： Eddy current sensing is governed by the diffusion equation of magnetoquasistatic fields. As such the eddy current sensor's proximity to the object to be inspected (i.e., “liftoff”) significantly affects the sensor's response signal. Methods and apparatus are disclosed for improving performance for an eddy current sensor, though they may also be used for other sensor types. These solutions are beneficial for both single channel eddy current sensors and arrays, and are particularly beneficial for measuring parts with complex surfaces. In some aspects improved performance is achieved by varying the stiffness of the mechanical support for the sensor. Some mechanical supports may exhibit anisotropic stiffness. After performing a scan with an eddy current array, a multi-channel shape filtering module is applied to improve defect detection. The module reduces the variability of defect response measured due to the unpredictability of the defect location transverse to the scan direction.

公开(公告)号：US20220221428A1

公开(公告)日：2022-07-14

申请号：US17609302

申请日：2020-01-23

申请人： OTR WHEEL SAFETY, INC.

发明人： Thomas SHUMKA ,  Jason SHUMKA

IPC分类号： G01N27/9013 ,  G01N27/904 ,  G01N27/90 ,  G01N21/88 ,  G01N23/223 ,  G01M17/013

摘要： A method and system for inspecting a steel wheel or steel rim of an off the road vehicle is provided. A method and system for predictive modeling of health and remaining useful life of a steel wheel or steel rim of the off the road vehicle is also provided. The off the road vehicles include vehicles at remote locations such as mine sites.

公开(公告)号：US11320400B2

公开(公告)日：2022-05-03

申请号：US16951211

申请日：2020-11-18

申请人： QASS GmbH

发明人： Ulrich Seuthe

IPC分类号： G01N27/72 ,  G01N27/82 ,  G01N27/90 ,  G01N27/80 ,  G01N27/9013 ,  G01N27/904 ,  G01R33/00

摘要： The invention relates to a method for observing a magnetic field of a material volume, in particular for determining properties of a workpiece under, in particular, magnetic, mechanical, thermal, and/or electrical excitation of a material volume of the workpiece, wherein the magnetic field of the material volume is sensed as a function of time and of frequency with high frequency resolution.

公开(公告)号：US11112382B2

公开(公告)日：2021-09-07

申请号：US16360765

申请日：2019-03-21

申请人： INFRASTRUCTURE PRESERVATION CORPORATION

发明人： William Seavey

IPC分类号： G01N27/9013 ,  G01N27/90

摘要： A robotic inspection system for bridge suspender cables includes a sensing device and a transport vehicle. The transport vehicle is configured to move the sensing device along a bridge suspender cable for taking main magnetic flux (MMF) readings as the sensing device moves along the bridge suspender cable. The system also includes a control station configured to wirelessly interface with the sensing device and the transport vehicle. In addition, the control station is configured to generate a bridge cable condition assessment report from the MMF readings to identify locations and sizes of deterioration of the bridge suspender cable.

公开(公告)号：US20210241931A1

公开(公告)日：2021-08-05

申请号：US17152157

申请日：2021-01-19

申请人： Westinghouse Electric Company LLC

发明人： Qui V. LE

IPC分类号： G21C17/017 ,  G21C19/20 ,  G21D1/00 ,  G01N27/9013

摘要： A plurality of signal anomalies are identified in a number of tubes in a steam generator. Since the geometry of the steam generator is known, the location of each signal anomaly along each tube is converted into a location within the interior of the steam generator. If a plurality of signal anomalies are at locations within the steam generator that are within a predetermined proximity of one another, such a spatial confluence of signal anomalies is determined to correspond with a loose part situated within the steam generator. Additional methodologies can be employed to confirm the existence of the loose part. Historic tube sheet transition signal data can be retrieved and subtracted from present signals in order to enable the system to ignore the relatively strong eddy current sensor signal of a tube sheet which would mask the relatively weak signal from a loose part at the tube sheet transition.

公开(公告)号：US11041789B2

公开(公告)日：2021-06-22

申请号：US16314264

申请日：2017-06-29

申请人： Illinois Tool Works Inc.

发明人： Pradeep K ,  Chandru Haralakere Puttaswamy ,  Murali Mohan ,  Sunder Ramasubbu ,  Somayya Ammanagi

IPC分类号： G01N3/20 ,  G01N3/06 ,  G01N27/9013

摘要： The present invention relates to an integrated system and method for in-situ 3-axis scanning and detecting defects in a CFRP composite (150) being loaded under static and cyclic test conditions. The system comprises a test system integrated with (10) a scanning system (20) that comprises a probe assembly (52) to generate eddy current on the surface of the CFRP composite (150) mounted on the test system, and a 3D scanner assembly (60) for movement of the probe assembly (50) over the entire surface area of the CFRP composite (150) along X-axis, Y-axis and Z-axis. An operator console (70) is connected to the test system and the scanning system (20) for controlling (3) mechanical test process in the test system and for controlling 3-dimensional movement of the probe assembly (52) along X-axis, Y-axis and Z-axis in a synchronous manner. Such system and method achieve (3D) automated and synchronized 3D scanning of the CFRP composite (150) to accurately detect the defects in the CFRP composite (150) before/during/after mechanical testing without interrupting the mechanical test process.

公开(公告)号：US10921286B2

公开(公告)日：2021-02-16

申请号：US15565059

申请日：2016-04-07

申请人： INNOSPECTION GROUP LIMITED

发明人： Andreas Boenisch

IPC分类号： G01N27/82 ,  G01N27/9013 ,  F16L55/28 ,  F16L101/30

摘要： An untethered in-line inspection tool for the non-destructive testing of a tubular test component is described which comprises one or more partial saturation eddy current testing (PSET) modules configured to locate with an internal surface of the test component. The one or more PSET modules comprise a variable strength permanent magnet for generating a variable DC magnetic field within the test component and at least one eddy current sensor. Having an in-line inspection tool that employs PSET techniques allows the in-line inspection tool to operate with an increased range of pipeline types. For the detection of cracks the in-line inspection tool may also comprise one or more crack detection modules. The in-line inspection tool further comprises one or more battery modules. Employing a dedicated battery module removes any need to employ an umbilical or wireline in order to provide power to one or more electromagnets.