Abstract: Methods and apparatus for a magnetic sensor including an elliptical magnet to generate substantially circular concentric zones of similar flux density in a plane over and parallel to a surface of the magnet. The sensor can include a sensing element disposed a selected distance from the magnet and a substrate containing circuitry to process a signal from the sensing element to provide a sensor output.

Abstract: A flux leakage detection system and a method for providing a quality indicator for a flux leakage detection system are provided.

Abstract: Various aspects include methods of inspecting a substantially round hole in a material. One method can include: feeding a probe axially into the substantially round hole until the probe completely passes through the substantially round hole while the probe is activated; rotating the probe at least ninety degrees around a primary axis of the substantially round hole after feeding the probe completely through the substantially round hole; removing the probe axially from the substantially round hole after rotating the probe at least ninety degrees while the probe is activated; and compiling at least one of eddy current data or ultrasound data about the hole from the feeding of the probe axially into the substantially round hole and the removing of the probe axially from the substantially round hole.

Abstract: To realize an object of providing an eddy current inspection device which is able to control a sensitivity decrease, and is able to reliably detect a defect.

Abstract: An electromagnetic transducer is disclosed. An example electromagnetic transducer may be provided for a fluid parameter meter. The example electromagnetic transducer may include at least one permanent magnet, a first armature mounted in magnetic cooperation with the permanent magnet, and a second armature mounted in magnetic cooperation with the permanent magnet. The first and the second armatures are arranged to interact with a third armature in magnetic cooperation with the first armature and the second armature. The example electromagnetic transducer may also include at least one electric coil mounted in cooperation with the magnetic field so that electric current through the electric coil to vary the vibratory forces. The example electromagnetic transducer may include an electronic module to control electric current and vibratory forces on a vibrating element of the fluid parameter meter.

Abstract: A device for inspecting a surface of an electrically conductive part, the device having a plurality of eddy current probes arranged on a convex surface of the device together with an applicator for applying the probes against the surface to be inspected into which the device is inserted, wherein the probes are fastened on flexible strips extending beside one another in a longitudinal direction of the device, the applicator including a deformable material, that, on being compressed along the longitudinal direction, gives rise to expansion transversely to the longitudinal direction, the expansion deforming the strips so as to apply the probes against the surface.

Abstract: Magnetic locators for detection of buried objects, such as buried utilities of conductive materials, are disclosed. Outputs provided from two or more magnetic sensors, such as three three-axis magnetic sensors, as well as optionally from other sensors, such as accelerometers and gyroscopic sensors, may be used to determine magnetic field distortion and provide output information corresponding to the detected objects based on the sensor outputs.

Abstract: One aspect provides a method including: receiving fluid conveyance infrastructure data at an electronic device; determining variance data for an infrastructure segment by comparing the received fluid conveyance infrastructure data to expected fluid conveyance infrastructure data; and providing at least one distribution based graphical representation based on the variance data. Other aspects are described and claimed.

Abstract: An inner detecting device for subsea oil and gas pipeline includes a support shaft defining a sealed chamber therein; a packer cup coupled to the support shaft; a hinge assembly coupled to the support shaft, swinging with respect to the support shaft in a radial direction and sliding with respect to the support shaft in an axial direction; a magnetic detector connected to the hinge assembly to move with respect to the support shaft in the radial and axial directions, and the magnetic detector tending to move away from the support shaft in the radial direction; a battery pack; an electric recorder electrically connected to the battery pack; and a mileage recorder recording a travel distance of the inner detecting device within the pipeline.

Abstract: To provide a surface property inspection device and method capable of inspecting the surface treatment state of treated material subjected to surface treatments. A surface property inspection device 1 includes an AC power supply 10, an AC bridge circuit 20, and an evaluation apparatus 30, and the AC bridge circuit 20 is formed by a variable resistor 21 with a distribution ratio of ?, a reference detector 22, and an inspection detector 23. The inspection detector 23 includes a coil 23b wound so as to oppose the surface property inspection area of the test object M; an eddy current is excited in the test object M by supplying AC power to the coil 23b. A reference test object S with the same structure as the test object M is placed in the reference detector 22 to cancel inspection environment effects.

Abstract: A Pipe Mapping Probe Apparatus for Searching Pipe Route Position includes: a first disc fitted and fastened on a shaft member thread-fastened to the inner side of a connection shaft at a first side of an internal body of a first pig; a cap coupled to a side of the shaft member outside the first disc; a first pig coupled to the shaft member; elastic members composed of three flexible springs coupled to a second side of an external body of the first pig; a cable that electrically connects a battery, a sensor unit, and a control board of the first pig and an encoder of a second pig, is connected with the battery through a first cable socket coupled to the external body of the first pig, and is connected to an encoder through a second cable socket disposed at the center of the second plate coupled to a first side of the second pig and through an encoder socket on the top of the encoder disposed in an internal body of the second pig; the second pig coupled to second sides of the elastic members at the first side o

Abstract: An eddy current testing probe includes: exciter coils 2 including a first exciter coil 2a and a second exciter coil 2b identical with each other and arranged in point symmetry, and each of which generates an alternating magnetic field to generate an eddy current in a test object; and detector coils 1 including a first detector coil 1a and a second detector coil 1b identical with each other, arranged in point symmetry, arranged in phase, and differentially connected to each other. The exciter coils 2 and the detector coils 1 are arranged on a single plane. A center of symmetry O on a center line of symmetry CL2 of the coils 2a, 2b, is identical with a center of symmetry O on a center line of symmetry CL1 of the coils 1a, 1b, and the CL1 intersects with the CL2 at a right angle.

Abstract: Disclosed herein is a method including: performing eddy current testing on a steam generator tube material by using a motorized rotating pancake coil (MRPC) probe, evaluating a test signal measured using the eddy current testing, and predicting the corrosion rate of the steam generator tube material from a noise value in the MRPC inspection signal of the steam generator tube obtained from the evaluating. When the prediction method of a corrosion rate of a steam generator tube according to the present invention is used, the steam generator tube material which has low corrosion rate can be selected at the material selecting step because the corrosion rate can be predicted and the criterions on the corrosion rate of the steam generator tube can be established as the requirements through an eddy current MRPC noise inspection of the steam generator tube material.

Abstract: Systems include, among other components, fixed and mobile sensors positioned within a pipe network containing a substance (such as a liquid, gas, or low-viscosity solid). In addition, systems include a mobile transceiver device positioned within the pipe network. The mobile transceiver device moves through the substance and the pipe network, and the mobile transceiver device is in wireless communication with the sensors. Systems also include a receiver that is external to the pipe network, and the receiver is in communication with the mobile transceiver device. In operation, the mobile transceiver device wirelessly receives sensor data from the sensors, the mobile transceiver device can aggregate the sensor data from multiple sensors, and the mobile transceiver device transmits the aggregated sensor data wirelessly to the receiver.

Abstract: A pipe inspection tool includes a body having a central axis, and one or more azimuthal antenna arrays operatively coupled to the body. Each azimuthal antenna array includes a plurality of antenna coils arranged circumferentially about the central axis and comprising an azimuthal array of z-coils or an azimuthal array of separated x-coils and separated y-coils. The separated x-coils are oriented in a first direction with respect to the central axis, the separated y-coils are oriented in a second direction with respect to the central axis, and the z-coils are oriented in a third direction with respect to the central axis. The second direction is orthogonal to the first direction, and the third direction is orthogonal to both the first and second directions.

Abstract: This disclosure provides methods and apparatus for wireless power field testing. An apparatus for sensing magnetic field strength of a wireless charging pad is provided. The apparatus includes a plurality of conductive loops each configured to sense a strength of a magnetic field passing through a respective one of the plurality of conductive loops. The apparatus includes at least one pair of terminals configured to be electrically connected to one or more of the plurality of conductive loops and configured to provide a voltage signal having a magnitude proportional to the strength of the magnetic field passing through the one or more of the plurality of conductive loops. In some implementations, the apparatus further includes a multiplexer circuit configured to individually electrically connect each of at least a subset of the plurality of conductive loops to the at least one pair of terminals.

Abstract: Methods including conveying a pipe inspection tool into a wellbore having at least a first pipe positioned within a second pipe, the pipe inspection tool including an electromagnetic sensor. A first excitation signal is transmitted from a first x-coil of the electromagnetic sensor, and a first response signal derived from the first excitation signal is received at the first x-coil or a second x-coil of the electromagnetic sensor. A second excitation signal is then transmitted from a first y-coil of the electromagnetic sensor, and a second response signal derived from the second excitation signal is received at the first y-coil or a second y-coil of the electromagnetic sensor. The first and second response signals are then compared to determine an azimuthal characteristic of the second pipe.

Abstract: Embodiments relate to Hall effect sensor circuits and devices that provide improved performance, such as reduced residual offset errors and/or improved S/N ratios. In an embodiment, a Hall effect sensor circuit comprises two circuit portions, a first with a higher bandwidth for higher frequencies and having an improved S/N ratio, and a second with a lower bandwidth for lower frequencies and having low residual offset. First and second Hall plates or devices are incorporated in the first and second circuit portions. The first Hall plate can be operated with a larger bias voltage and a larger, high-pass-filtered signal bandwidth, while the second Hall plate can be operated with a smaller bias voltage and a smaller, low-pass-filtered signal bandwidth. Individual output signals from each of the first and second Hall plates can be scaled and combined to provide an overall output signal with the benefits of each circuit portion, including reduced residual offset error and negligible increased noise.

Abstract: The invention relates to systems and methods for verifying complete analysis coverage in a steam generator tube inspection. The analysis is conducted by an automated analysis process. The process includes setup and analysis functions. Information is entered into the setup function to identify abnormalities to be inspected and to model the steam generator tubes. The verification includes employing a software verification program to detect and identify a gap within analysis coverage for a particular abnormality or set of abnormalities for which the steam generator tube is inspected, in a particular portion of the steam generator tube.

Abstract: A method for pipeline inspection is provided. The method includes carrying out an inspection run in which a pipeline inspection apparatus travels inside a pipeline, wherein sensors on the apparatus are configured to conduct an in-line inspection of wall material along a length of the pipeline. The method includes initiating a first inspection mode to produce a primary inspection data set, wherein the first inspection mode comprises an inspection of the pipeline wall material upstream and downstream of a location of a dented region in the pipeline, selectively initiating a second inspection mode to produce a secondary inspection data set, wherein the second inspection mode includes an inspection of the pipeline wall material in the dented region in the length of the pipeline, and combining the primary and the secondary inspection data sets to provide a direct assessment for the presence of cracks and/or corrosion in wall material along the pipeline.

Abstract: An identification system, a physical apparatus, an identification apparatus, and an identification method of the physical apparatus are provided. The identification system includes the physical apparatus and the identification apparatus. The physical apparatus has a path circuit disposed to an identification detecting pin. The identification apparatus transmits a probe signal to the identification detecting pin and then receives a reflected signal, wherein the reflected signal is generated by the probe signal which responds to an impedance characteristic of the path circuit. The identification apparatus obtains identification information of the physical apparatus according to the impedance characteristic of the path circuit which is responded by the reflected signal. The identification system of the present invention can reduce the number of pin for identifying and effectively utilize the impedance characteristic of the physical apparatus to identify identification information.

Abstract: An inspection arrangement including an inspection element and a positioning tool for positioning the inspection element, the inspection element being attachable to the positioning tool by an attachment arrangement, and having a fixing element to present the inspection element in use, the fixing element including a plurality of radially extending resilient elements.

Abstract: Exemplary embodiments of method and system for guiding a tester of a bundle of similar objects are disclosed. The disclosed embodiments may obtain a picture of the bundle of the similar objects. The image may be processed in order to identify the bundle of similar objects to be tested. Then, the system may determine which object of the similar objects to measure and accordingly it may instruct a tester to associate an object-measuring device with the determined object to be measured. Upon receiving a trigger signal issued by the tester, information is collected regarding the test results of the measured object and information on the location of the measured object. Then the process can proceed for additional objects in the bundle.

Abstract: The systems and methods of the invention pertain to analyzing steam generator tube data for the detection of wear. Further, the invention is capable of performing a comparison of current tube signal data to baseline or historic tube signal data, e.g., from previous and/or the first, in-service inspection of the steam generator. The systems and methods are automated and can generate results to show potential tube-to-tube contact wear areas as well as the progression of tube-to-tube gap reduction within a steam generator tube bundle. In certain embodiments, the invention is capable of comparing current and historical eddy current data to determine the difference that may be related to degradation or other interested phenomena, and of processing and trending historical comparison results to establish normal variance and detect abnormal variances.

Abstract: The present inventions provides a magnetizing apparatus 100 for magnetic particle testing of a wheel 7 that includes a hub 71, a plate 72, and a rim 73 in sequence from inward to outward in a radial direction of the wheel. The apparatus includes: a conductor 1 inserted through a bore 711 of the hub 71; and a pair of auxiliary conductors 2 connected to respective opposite end portions of the conductor 1, and so disposed as to face respective opposite side surfaces of the wheel 7, and to extend from the hub 71 to the rim 73 outwardly in a radial direction of the wheel 7, wherein the pair of auxiliary conductors 2 and the conductor 1 are energized with alternating current.

Abstract: An inspection vehicle for inspecting a substantially cylindrical object composed of a magnetizable material includes a chassis. A plurality of wheels is disposed on the chassis so as to be rotatable and is configured to move the chassis in a circumferential direction along an external surface of the cylindrical object, at least some of the plurality of wheels being motor-drivable. The plurality of wheels is disposed so as to provide a chassis clearance allowing a movement of the chassis over an obstruction on the external surface of the cylindrical object. A magnetic device is disposed on the chassis and is configured to hold the vehicle on the external surface of the cylindrical object.

Abstract: A delivery system for remotely driving an eddy current probe through the tubing of a heat exchanger. The system uses a flexible shaft and air pressure to move an inspection probe through the heat exchanger tubes. The flexible shaft initially drives the probe through a sealed conduit to deliver the probe to the tube end at which point a seal on the shaft near the probe head contacts the tube inner surface allowing a buildup of air pressure behind the seal, thus driving the probe through the tube.

Abstract: A method to assess and predict pressurized water stress corrosion cracking in operational nuclear power plants and the effect of adding zinc compounds into a reactor coolant system of the nuclear power plant.

Abstract: Optical methods and systems for the detection of leakages in fluid transporting pipelines. An exemplary system comprises at least one pair of light transmitter and light sensor positioned at the pipe wall itself. The discontinuity of fluid flow by bubbles and entrained particles resulting from a crack on the pipe wall is reflected in the light rays received by the light sensor. The discontinuity is recorded and converted into an optical signal that is transmitted wirelessly to a processing unit at a receiving station.

Abstract: A feed-through coil arrangement for an apparatus that tests long products via eddy current includes an exciter coil arrangement with an exciter coil having a passage opening for the long product, and a receiver coil arrangement around the opening. The receiver coil arrangement includes two segment coil arrangements distributed over the passage circumference, wherein each segment coil arrangement has a detection range covering only a circumferential section of the long product circumference. The segment coil arrangements are distributed over two shells surrounding the opening at different distances to a reference axis. First segment coil arrangements on a first shell are without reciprocal overlapping and second segment coil arrangements on a second shell are without reciprocal overlapping.

Abstract: An eddy current flaw detection system includes an eddy current flaw detection probe having a substrate facing an inspection surface, and at least one exciting coil and at least two detecting coils provided on the substrate, a scanning device which scans the probe on the inspection surface, a scan control device which drives and controls the scanning device, an eddy current flaw detection device which acquires results of detection of a plurality of detection points corresponding to combinations of the exciting and detecting coils for each scan position of the probe, and a data processing/display device which processes data from the scan control device and the eddy current flaw detection device and thereby displays a result of flaw detection. The data processing/display device acquires three-dimensional coordinates of the detection points for each scan position of the probe and thereby creates three-dimensional flaw detection data.

Abstract: A method and apparatus for the inspection of electrically conductive components is described. The described apparatus comprises a sensor module having a magnetizer unit suitable for generating a variable DC magnetic field within the test component and an eddy current probe. The variable DC magnetic field and eddy current probe are configured to perform a partial saturation eddy current test upon the test component. The eddy current probe further comprises a magnetic field sensor that provides a means for measuring the permeability within the test component. Employing the magnetic field sensor provides apparatus that is more accurate and flexible in its modes of operation since such sensors provide a means for the actual permeability of a material being tested to be measured. The described methods and apparatus find particular application in the inspection of tubular components used in the oil and gas exploration and production industries.

Abstract: An object is to improve the precision of estimating a blockage ratio or a deposited-scale thickness. In a deposit measurement apparatus that estimates a blockage ratio of a gap between a wall surface of a through-hole and an outer surface of a heat-conducting pipe or the thickness of a deposit deposited at the gap, an eddy-current flaw detection probe (61) acquires an eddy-current flaw detection signal by scanning inside the heat-conducting pipe with a sensor; and a processing device (62) estimates the blockage ratio at the gap or the thickness of the deposit deposited at the gap by using the eddy-current flaw detection signal for the gap of the pipe-supporting-plate protrusion in the through-hole.

Abstract: Disclosed herein are an apparatus and method for detecting a crack in a small-bore piping system. The apparatus includes a sensor unit, a bobbin coil, a power supply unit, and a signal reception unit. The sensor unit is configured such that a plurality of magnetic sensors is arranged thereon and formed to be cylindrical. The bobbin coil is wound around the outside surface of the sensor unit. The power supply unit applies direct current (DC) power to the sensor unit and alternating current (AC) power to the bobbin coil. The signal reception unit quantifies a signal from the sensor unit. The sensor unit detects the distribution of a magnetic-field attributable to the crack in the small-bore piping system based on the AC power applied to the bobbin coil.

Abstract: Disclosed are systems and methods for inspecting and monitoring an inner surface of a pipeline. One system includes a pig arranged within the pipeline, one or more optical computing devices arranged on the pig adjacent the inner surface of the pipeline for monitoring at least one substance present on the inner surface. The optical computing devices include at least one integrated computational element configured to optically interact with the at least one substance and thereby generate optically interacted light, and at least one detector arranged to receive the optically interacted light and generate an output signal corresponding to a characteristic of the at least one substance. A signal processor is communicably coupled to the at least one detector of each optical computing device for receiving the output signal of each optical computing device and determining the characteristic of the at least one substance.

Abstract: Apparatuses and methods for measuring stress or strain in a conductive material without physical contact with the material are provided. The device comprises an inductor circuit configured to induce an alternating current into the material along a first path; and a detector configured to detect a signal representative of the stress in the material along the first path when current is induced in the material.

Abstract: An apparatus is provided for sensing anomalies in a long electrically conductive object to be inspected. The object may be a pipeline, or other hollow tube. The apparatus may have a magnetic field generator, and an array of sensors spaced about the field generator. As relative motion in the longitudinal direction occurs between the apparatus and the object to be inspected, the moving magnetic field, or flux, passed from the field generator into the object to be inspected may tend to cause eddy currents to flow in the object. The sensors may be spaced both axially and circumferentially to permit variation in magnetic flux, or eddy current divergence, to be sensed as a function of either or both of axial position relative to the wave front of the magnetic field (or, effectively equivalently any other known datum such as the radial plane of the midpoint of the field generator), and circumferential position about the periphery of the apparatus as measured from an angular datum.

Abstract: A method and apparatus for the non-destructive testing of electrically conductive components such as wellbore tubulars, which is suitable for testing the components in situ a wellbore installation. The method comprises the steps of performing a remote field eddy current test phase and at least one of a conventional direct-field eddy current test phase and a partial saturation eddy current test phase. A measurement data set from each of the test phases is obtained and the combined measurement data is processed to evaluate a condition of the test component.

Abstract: An apparatus is disclosed for magnetically sensing and computing and displaying cable distance, and computing and displaying other user-selectable information in a pipe inspection system. At least two permanent magnets are mounted in spaced apart fashion, on either a frame, or a rotatable member supported on the frame for rotation about an axis. A magnetic sensor is mounted on the other one of the rotatable member or frame on which the magnets are not mounted, so that either the magnets rotate around the magnetic sensor or the magnetic sensor rotates between the permanent magnets. The magnetic sensor generates signals representing changes in at least two axes in a composite magnetic field generated by the permanent magnets.

Abstract: An insertion type eddy current flaw detection probe capable of more accurately detecting flaws in magnetic tubes is provided. A method for inspecting magnetic tubes for flaws with high accuracy is also provided. A eddy current flaw detection probe contains a cylindrical yoke (1), a plurality of detection coils (5) disposed around the central portion of the cylindrical yoke in the direction of a cylindrical axis thereof, first and second inner excitation coils (6) disposed on both sides of the plurality of detection coils in the direction of the cylindrical axis, and first and second permanent magnets (3, 4) disposed around the yoke on both sides of the first and second excitation coils in the direction of the cylindrical axis so that the direction of magnetizations thereof are parallel to the radial direction of the yoke and magnetic poles on the cylindrical yoke side thereof are different from each other.

Abstract: An electromagnetic probe for non-destructive inspection of a twisted tube of a twisted tube heat exchanger comprising a probe body having a sensing section being configured to allow circulation of the probe body within the length of circular tube and the length of helical oval tube and to allow displacement of the electromagnetic sensor(s) from a radially inward contracted position to a radially outward expanded position in close proximity to an interior surface of a crest of the oval tube; a conduit attached to a proximal end of the probe body, the at least one conductor extending within the conduit to a remote end of the electromagnetic probe.

Abstract: A steam generator tube probe includes a probe head comprising an electronic probe coupled between a proximal portion of the head that is configured for entry into a steam generator tube and a distal portion of the head; and a probe shaft coupled to the distal portion of the shaft and comprising a flexible metallic conduit that comprises a plurality of interlocking portions, each interlocking portion moveably affixed to at least one adjacent interlocking portion.

Abstract: The present application relates to a tool for detecting perforations in hydrocarbon pipelines based on the sensing system thereof. The function of said tool is to pass longitudinally through a pipeline of specific diameter, monitoring the thickness thereof and detecting any hole over the path followed and, in accordance with the data obtained, establishing the distance at which the holes are located, calculated from the starting point, the time at the instant of detection and also the circumferential position and size thereof, all the aforesaid as part of an online process implemented as the tool progresses through the target pipeline. At the end of the run, the information may be downloaded to a computer where it is available for use and for the corresponding decisions concerning integrity.

Abstract: Disclosed is a sensor that can accurately detect displacement and prevents the phenomenon of a contact section between a shaft member and a sliding element receiver being shifted. The sensor comprising: a case having a through hole; a resistance substrate fixed at an inside of said case; a shaft member having a first end portion which is one end of the shaft member placed within said case and a second end portion which is other end of the shaft member exposed to an outside of said case from said through hole, said shaft member being placed at said through hole in a movable manner in an axial direction; and a sliding element receiver having a bearing end contacting with said second end portion of said shaft member, and attached with a brush sliding together with said resistance substrate, said sliding element receiver being capable of moving relatively against said resistance substrate with said shaft member. A hemispherical end face is formed at said first end portion.

Abstract: A non-destructive inspection system that has particular application for inspecting a bore in a valve for defects. The system includes an inspection yoke having a ferromagnetic core, where a first coil is wound around the core in one direction and a second coil is wound around the core in an orthogonal direction so that orthogonal electromagnetic fields can be generated within the bore. A controller provides a current flow through the coils to generate the electromagnetic fields to detect defects in the bore.

Abstract: An inspection assembly for inspecting a hollow member, with a probe head, which includes at least one sensor, and a flexible shaft connected to the probe head to transmit motive force. The shaft encloses at least one wire operatively connected to the probe head for sensory operation of the sensor. The shaft has a first part adjacent to the probe head and a second part distal therefrom. The first part is relatively more flexible that the second part. The shaft has an improved ability to follow a torturous path of the hollow member and for aiding in kink prevention of the shaft. In one aspect, the first part is made of polymer material and has a reduced-diameter and corrugations. Optionally, at least one non-metallic retrieval cable is enclosed within the shaft and connected to the probe head for transmitting a pulling force to the probe head.

Abstract: A method of eddy current testing for flaws in a tube is provided that includes passing an eddy current probe through the tube and obtaining eddy current data for a number of positions along the tube, analyzing the eddy current data to generate background noise data for a number of positions along the tube, analyzing the eddy current data to generate extracted data for a number of positions along the tube, and determining whether a flaw of a particular category is present in the tube based on a set of one or more of rules applied to at least a portion of the extracted data, wherein at least one of the rules uses a particular part of the extracted data and employs a threshold that is a function a particular part of the background noise data that is associated with the particular part of the extracted data.

Abstract: A pipeline inspection tool has an even number “n” of spiraled pole magnets spaced equidistant apart and spanning the length of the tool. Each pole magnet, which preferably has a conformable upper surface, is rotated or spiraled about the tool body so that a second end of each pole magnet is offset a predetermined amount “?” relative to a first end of that same pole magnet. The amount of rotation ? applied to each of the pole magnets produces a magnetic field oblique to the central longitudinal axis of the tool body (and therefore the pipe) and one that covers 360° of the internal wall surface of the pipe. A helical-shaped array of magnetic flux sensors may be arranged about the tool body and substantially equidistant between adjacent pairs of pole magnets. The tool detects axially oriented, circumferentially oriented, and volumetric anomalies and allows for single pass inspection.

Abstract: Systems, devices, and methods of inspecting a body of a tubular, are provided. An exemplary electro-magnetic acoustic transducers (EMAT) tubular inspection system for inspecting a body of a tubular includes an EMAT in-line tubular inspection device. The device can include a spine having a longitudinal support body and radially projecting rails, and multiple telescoping sections each connected to the radially projecting rails. The telescoping sections can include a magnetic back panel, one or more wheels positioned to engage an inner surface of a body of a tubular during inspection, and signal propagating and receiving modules carried by the magnetic back panel. Each module can include a magnet and different types of EMAT inspection transducer coil arrangements connected to the magnet. The different types of EMAT inspection transducer coil arrangements provide for the generation of NBSH, SW, and SV waves.

Abstract: A conduit sensor device comprises a first end portion, a second end portion, a first magnet rotor assembly residing proximate the first end portion of the device and rotatable between first and second positions, a second magnet rotor assembly residing proximate the second end portion of the device and rotatable between first and second positions. The first magnet rotor assembly includes a first plurality of magnets axially arranged about a first axis. The first magnet rotor assembly includes a first top portion and a first bottom portion securing the first plurality of magnets within the first magnet rotor assembly. The second magnet rotor assembly includes a second plurality of magnets axially arranged about a second axis. The second magnet rotor assembly includes a second top portion and a second bottom portion securing the second plurality of magnets within the second magnet rotor assembly.