WO1980001842A1 - Improvements in or relating to ultrasonic pipe inspection apparatus - Google Patents
Improvements in or relating to ultrasonic pipe inspection apparatus Download PDFInfo
- Publication number
- WO1980001842A1 WO1980001842A1 PCT/GB1980/000029 GB8000029W WO8001842A1 WO 1980001842 A1 WO1980001842 A1 WO 1980001842A1 GB 8000029 W GB8000029 W GB 8000029W WO 8001842 A1 WO8001842 A1 WO 8001842A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pipe
- wheels
- wheel
- wall
- vehicle
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/26—Arrangements for orientation or scanning by relative movement of the head and the sensor
- G01N29/265—Arrangements for orientation or scanning by relative movement of the head and the sensor by moving the sensor relative to a stationary material
Definitions
- This invention relates to ultrasonic pipe inspection apparatus. That is to say apparatus for insertion into the bores of pipes for the purpose of examining the wall of pipes for defects, cracks or other discontinuities.
- the invention is particularly concerned with wheel probes for ultrasonically inspecting the wall of the pipe.
- the usual pipe inspection apparatus for examining, for example, gas pipe lines comprises a vehicle, or a train of vehicles, which is propelled along the pipe line by the gas flow in the pipe line.
- ultrasonic transducers are mounted in a number of wheels
- wheel probes which are urged into contact with the wall of the pipe.
- ultrasound generated by the transducers is transmitted across the interface between the wheel probe and the wall of the pipe into the pipe wall.
- Ultrasound reflected or refracted from within the pipe wall is in turn received by the transducers within the wheels and subsequently analysed. This technique required intimate contact at all times between the wheels and the pipe wall so as to reduce or eliminate losses of the ultrasound signal at the interface between the wheel and the pipe wall.
- One form of known wheel probe comprises a hollow wheel assembly having an inflatable tyre around its outer circumference, and the ultrasonic transducers located within the wheel assembly, and sound is transmitted through the inflatable tyre.
- the tyre is urged into contact with the surface to be examined, and an acoustic coupling fluid is maintained between the inflatable tyre and the surface to ensure that adequate coupling is achieved.
- An object of the present invention is to provide an improved wheel probe designed to remedy the aforesaid disadvantages and limitations of known wheel probes.
- the wheel probe for insertion into the bore of a pipe for the purpose of ultrasonically inspecting the wall of the pipe.
- the wheel probe comprises a solid annular rim made of a non-deformable material through which sound will pass, and side members which together with the rim define a hollow chamber.
- One or more ultrasonic transducers are located within the chamber and are positioned adjacent the inside surface of the rim for directing and receiving sound through the rim, and a solid resilient tyre member mounted on the outside surface of the rim.
- the present invention dispenses with the need for guide wheels, and acknowledges that it is usual to position a plurality of wheel probes around the circumference of the pipe.
- the present invention has as an object the provision of inspection devices which are .self aligning relative to the pipe.
- an inspection device for ultrasonically inspecting the wall of a pipe comprising a support means for attachment to a vehicle that in use is movable along the pipe, the support means carrying two spaced hollow wheels each having one or more ultrasonic transducers located therein, the two wheels being mounted for rotation on a common spindle means which is itself pivotally mounted on the support means so that the spindle means pivots about an axis which extends in a direction normal to the axis of rotation of the wheels at a location intermediate the wheels, the ulrasonic transducers being positioned relative to the wheels so that in use they are aligned in predetermined positions relative to the geometry of the pipe.
- the inspection device may be designed for insertion in the bore of the pipe in which case, in use, the wheels are urged into contact with the bore of the pipe.
- the inspection device may be designed for assembly around the outside of the pipe in which case, in use, the wheels are urged into contact with the outside surface of the pipe wall.
- the axes of rotation of the two wheels may lie on a common axis or parallel axes. Alternatively, the axes of rotation of the two wheels may lie in angular relationship to each other.
- each wheel rotates on an axis which extends parallel to the tangent at the point of contact between the wheel and the pipe.
- each wheel lies in a plane which extends radially of the pipe.
- Two or more transducers may be arranged inside each wheel with one transducer angled to direct, or receive, sound in one direction circumferentially through the wall of the pipe and another transducer angled to direct, or receive, sound in a second direction circumferentially through the pipe wall.
- the support means comprises an arm assembly which in use is pivotally mounted on the vehicle, the spindle means being mounted on the free end of the arm assembly in such a way that, in use, the wheels can be urged into contact with the pipe wall.
- a biassing means such as a coil spring, is provided to operate on the arm assembly to urge the wheels into contact with the pipe wall.
- the arm assembly may comprise two spaced arms and the common spindle means is pivotally mounted on the free ends of the two arms.
- Preferably guide means are provided for aligning the wheels in a preferred attitude relative to the pipe so that the wheels are aligned in the preferred attitude throughout the whole of the pivotal movement of the arm assembly.
- the array of transducers may be arranged asymmetrically inside each wheel.
- each wheel rotates about an axis normal to a plane extending radially of the pipe the array of transducers may be arranged symmetrically inside each wheel.
- Figure 1 is a part sectional side elevation of an apparatus for ultrasonically inspecting the wall of a pipe incorporating a plurality of inspection devices constructed in accordance with the present invention
- Figure 2 is a fragmentary, partly broken away end view of the apparatus of Figure 1 looking in the direction of arrow A;
- Figure 3 is a sectional side elevation of one of the wheels of one of the inspection devices incorporated in the apparatus of Figure 1;
- Figure 4 is a sectional end view of the wheel of Figure 3 sectioned along line YY of Figure 3, and
- Figure 5 is a line diagram of part of the apparatus of Figure 2.
- the apparatus is intended for insertion in a 24-inch diameter gas pipe line (not shown) and comprises a vehicle 10 provided with a towing eye 9 which enables the vehicle 10 to be towed by a second vehicle (not shown) which is propelled along the pipe line by the flow of pressurised gas in the pipe.
- the vehicle is the subject of our aforesaid co-pending British Patent Application No. 79 07149 dated 28th February, 1979..
- the vehicle 10 comprises a central hollow tubular member 11 having two flanges 12, 13, each of which is located at or near respective ends of the vehicle.
- Alignment means 14 are mounted on each flange for the purpose of locating and aligning the vehicle 10 along the axis of the pipe.
- Each alignment means 14 comprises an annular sealing member 15 made of an elastomeric material such as polyurethane and has a concave recess facing towards the rear of the vehicle 10 so that pressurised gas in the pipe urges the sealing member 15 into engagement with the bore of the pipe.
- the annular sealing member 15 is clamped between an annular plate 16 and a clamping plate 17, and the annular plates 16 are secured by bolts 18 to the respective flanges 12, 13.
- brackets 19 equi-spaced around a common pitch circle are secured to the front annular plate 16, and a link 20 is mounted by a spherical ball joint 20a at one end to a pivot 23 in each bracket 19 to provide the constraining means.
- a spherical ball joint 20a in the free end of each of the links 20 locates about a pivot 23 in a respective bracket 19 secured to an annular support plate 70, the brackets 19 being arranged so that the pivots 23 lie approximately radially relative to the front annular plate 16.
- the support plate 70 forms part of a carrier 21 having two annular carrier plates 28 spaced apart in parallel relationship by hollow spacers 71 and secured together by bolts 74 extending through the spacers 71, the bolted-together carrier plates 28 being fixed to the support plate 70 by bolts 27.
- the carrier 21 is freely movable in a plane normal to the longitudinal axis of the vehicle 10, and is suspended on a spring 24 attached to the annular plate 17 of the rearmost alignment means 14 and the rearmost carrier plate 28.
- the carrier 21 has a rubber centralising member 26 clamped between a clamping plate 25 and the support plate 70 to centralise the carrier 21 in the bore of the pipe.
- Eight inspection devices 22 are resiliently supported between the carrier plates 28 as shown in greater detail in Figure 2 to which reference is also made.
- Each inspection device 22 comprises two hollow wheels 29, each wheel 29 having inside thereof an ultrasonic probe assembly 30 with transducers 55 arranged to transmit sound into the wall of the pipe so that the sound travels around a circumferential band of the pipe wall.
- Power for energising the transducers 55, together with the signals representative of the sound received from within the pipe are fed by way of leads (not shown) either to the towing vehicle or to a further vehicle (not shown) which is towed behind the vehicle 10.
- Each wheel 29 is shown in greater detail in Figures 3 and 4 and comprises an hermetically sealed hollow body 31 made of polymethylmethacrylate (Perspex - a Registered Trade Mark) rim 32 and brass side-plates 33 secured to the rim 32.
- the rim 32 is provided with a solid polyurethane tyre 34 around its circumference.
- the wheels 29 are mounted on bearings for rotation on a spindle 35 carried by taper block 36.
- "O" ring seals are provided between side plates 33 and the rim 32 and oil seals are provided between the side-plates 33 and spindle 35.
- the block 36 is itself pivotally mounted on a spindle 37 carried at the free end of the limbs of a generally "U"-shaped pivot arm 38.
- the wheels 29 are thereby able to pivot about the axis of the spindle 37 so that the two wheels of each inspection device 22 contact the bore of the pipe along lines which are equispaced each side of a radial plane passing through the longitudinal axis of the pipe and the longitudinal axis of spindle 37.
- the spindles 35 lie normal to radial planes passing through the point of contact between the wheel and the bore of the pipe.
- the ultrasonic probe assembly 30 is resiliently carried by the spindle 35 and the hollow wheel contains an acoustic coupling medium (not shown) such as for example a mixture of glycerol and water.
- an acoustic coupling medium such as for example a mixture of glycerol and water.
- the glycerol and water mixture may be loaded with particles of carbon, for example graphite, or molybdenum disulphide.
- the ultrasonic probe assembly 30 includes a support structure, consisting of brackets 52 and rods 53 which are arranged to support a nylon block 54 upon which are mounted a plurality of transducers 55, for transmitting ultrasound into the wall of the pipe and for receiving sound scattered or reflected from the wall of the pipe.
- the block 54 is urged against the inside surface of the rim 32 by a tension spring 56 which is anchored between one of the brackets 52 and a pin 57 secured in a central block 58 which forms part of the spindle 35.
- the rods 53 are slidably supported in the spindle block 58 for linear movement of the probe assembly.
- the block 54 is shaped to conform with the shape of the inside surface of the rim 32, so as to ensure that the beams of sound from the transducers 55 enter the pipe wall at a predetemined preferred angle, and that the acoustic coupling medium is permitted to penetrate any gaps between the transducers 55 and the block 54 and between the block 54 and the rim 32.
- Electrical leads (not shown) from the transducers 55 pass along a bore (not shown) in the spindle 35 through seals which prevent the acoustic coupling medium leaking from the wheel 29 and out through the tapered block 36.
- the pivot arm 38 comprises two spaced side members 39, 40 connected by a shaft 41 about which the pivot arm 38 rotates.
- the pivot arm 38 is mounted between the carrier plates 28, and a spring assembly 42 operates on each side member 39, 40 to urge the wheels 29 radially outwards into engagement with the bore of the pipe.
- Each spring assembly 42 comprises a compression coil spring 43 mounted on a rod 44 which is rigidly mounted at one end on the carrier plate 28.
- the coil spring 43 passes through an elongate slot 45 in the pivot arm 38, and urges a thrust pad 46 into engagement with a concave surface of a bracket 47 secured to the pivot arm 38.
- Each tapered block 36 is provided with spigots 48 which engage in guideways 49 provided in end stops 50, 51 carried by the carrier plates 28.
- the guideways 49 are shaped to provide a limit to the pivotal movement of tapered block 36 while allowing some pivotal movement of tapered block 36 when wheels 29 are negotiating irregularities in the pipe surface such as ovality or welds.
- the guide may also assist in maintaining the wheels 29 correctly aligned relative to the pipe wall so that the wheels 29 contact the pipe wall along lines equispaced about radial planes.
- the movement of the wheels 29 relative to the vehicle may be seen in line diagramatic form in Figure 5 to which reference can be made, and in which the wheels 29 are shown in engagement with a pipe 8.
- the support arms may be linearly displaceable, for example in radially directed grooves. It is to be understood that the specific design of transducers and their positions inside the wheels may be different from that described above.
- the block 54 instead of mounting the ultrasonic probe assembly into- contact with rim 32, the block 54 may be dispensed with and the transducers of ultrasonic probe assembly fixed rigidly to spindle 35 and held a small distance away from the rim 32 of the wheel.
- the wheel is filled with a mixture of glycerol and water loaded with particles of carbon, for example graphite, or molybdenum disulphide.
- the size of the particles is chosen so as to attenuate slightly the ultrasound, thereby reducing ultrasound reverberation within the wheel after the transmission of an ultrasonic pulse from a transducer.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB7907148 | 1979-02-28 | ||
GB7907148A GB2043248B (en) | 1979-02-28 | 1979-02-28 | Ultrasonic pipe inspection apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1980001842A1 true WO1980001842A1 (en) | 1980-09-04 |
Family
ID=10503517
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB1980/000029 WO1980001842A1 (en) | 1979-02-28 | 1980-02-21 | Improvements in or relating to ultrasonic pipe inspection apparatus |
Country Status (8)
Country | Link |
---|---|
US (1) | US4285243A (en) |
EP (1) | EP0024397B1 (en) |
AU (1) | AU514780B2 (en) |
CA (1) | CA1134936A (en) |
DE (1) | DE3034319A1 (en) |
GB (1) | GB2043248B (en) |
IT (1) | IT1128387B (en) |
WO (1) | WO1980001842A1 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0039922A2 (en) * | 1980-05-08 | 1981-11-18 | Westinghouse Electric Corporation | Apparatus for ultrasonically inspecting circular bores |
EP0106527A2 (en) * | 1982-09-15 | 1984-04-25 | Schlumberger Electronics (U.K.) Limited | Ultrasonic inspection devices |
DE3412519A1 (en) * | 1984-04-04 | 1985-10-24 | Kraftwerk Union AG, 4330 Mülheim | Test head holder for a self-propelled internal pipe manipulator |
EP0255619A2 (en) * | 1986-08-06 | 1988-02-10 | Pipetronix GmbH | Apparatus for measuring and non-destructive material testing of laid pipelines |
WO1990003572A1 (en) * | 1988-09-22 | 1990-04-05 | Krautkrämer Gmbh & Co. | A device for the ultrasonic inspection of elongated, rotation-symmetrical test-pieces by the single-probe pulse reflection process |
EP0882947A2 (en) * | 1997-06-04 | 1998-12-09 | Sonic Techologies Limited | Measuring the thickness of a liner for a pipe |
WO2004106802A1 (en) * | 2003-06-02 | 2004-12-09 | Onesteel Manufacturing Pty Ltd | Ultrasonic testing of pipe |
AU2004243333B2 (en) * | 2003-06-02 | 2006-12-07 | Onesteel Trading Pty Ltd | Ultrasonic testing of pipe |
Families Citing this family (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2144545B (en) * | 1983-08-04 | 1986-12-03 | British Gas Corp | A wheel probe |
US4522063A (en) * | 1983-09-16 | 1985-06-11 | T. D. Williamson, Inc. | Methods and apparatus for indicating selected physical parameters in a pipeline |
US4586380A (en) * | 1985-01-17 | 1986-05-06 | General Electric Company | Ultrasonic transducer assembly |
JPH086892B2 (en) * | 1987-07-01 | 1996-01-29 | 関西電力株式会社 | Automatic tube circumference scanning device |
DE4036684C1 (en) * | 1990-11-17 | 1991-12-19 | Hermann Sewerin Gmbh, 4830 Guetersloh, De | Water pipe section tester esp. for hydrant or slide valve - has sound pick=up on one side and piezo-discs on other side of receptor |
AU662313B2 (en) * | 1991-03-11 | 1995-08-31 | Alcoa Of Australia Limited | Pipeline internal condition monitor |
US5265129A (en) * | 1992-04-08 | 1993-11-23 | R. Brooks Associates, Inc. | Support plate inspection device |
US5305356B1 (en) * | 1992-05-14 | 1998-09-01 | Brooks Support Systems Inc | Inspection device |
US5309844A (en) * | 1993-05-24 | 1994-05-10 | The United States Of America As Represented By The United States Department Of Energy | Flexible pipe crawling device having articulated two axis coupling |
US5641909A (en) * | 1994-04-05 | 1997-06-24 | Gas Research Institute | Scan assembly structure |
US5594176A (en) * | 1994-04-05 | 1997-01-14 | Gas Research Institute | Scan assembly and method for transferring power and data across a rotary interface |
US5648613A (en) * | 1994-04-05 | 1997-07-15 | Gas Research Institute | Scan assembly and method for signal discrimination |
US5574223A (en) * | 1994-04-05 | 1996-11-12 | Gas Research Institute | Scan assembly and method using scan rate modulation |
US6035696A (en) * | 1994-04-05 | 2000-03-14 | Gas Research Institute | Scan assembly and method for calibrating the width of an input pulse to an ultrasonic transducer of the scan assembly |
US5460046A (en) * | 1994-05-25 | 1995-10-24 | Tdw Delaware, Inc. | Method and apparatus for ultrasonic pipeline inspection |
US5540096A (en) * | 1994-06-07 | 1996-07-30 | Washington Suburban Sanitary Commission | Method for the non-destructive evaluation of prestressed concrete structures |
US5587534A (en) * | 1994-10-28 | 1996-12-24 | The United States Of America As Represented By The Secretary Of Commerce | Wall thickness and flow detection apparatus and method for gas pipelines |
US5618999A (en) * | 1995-09-28 | 1997-04-08 | The Goodyear Tire & Rubber Company | Apparatus and method for monitoring condition of objects |
US6125705A (en) * | 1998-04-23 | 2000-10-03 | Bechtel Bwxt Idaho, Llc | Apparatus for the concurrent ultrasonic inspection of partially completed welds |
US6536553B1 (en) * | 2000-04-25 | 2003-03-25 | The United States Of America As Represented By The Secretary Of The Army | Method and apparatus using acoustic sensor for sub-surface object detection and visualization |
US7082822B2 (en) * | 2002-04-05 | 2006-08-01 | Vetco Gray Inc. | Internal riser inspection device and methods of using same |
US6904818B2 (en) * | 2002-04-05 | 2005-06-14 | Vetco Gray Inc. | Internal riser inspection device |
US20050209817A1 (en) * | 2004-03-17 | 2005-09-22 | Ch2M Hill, Inc. | Method and system for grading the internal condition of a pipe |
WO2007068979A1 (en) * | 2005-12-16 | 2007-06-21 | Bae Systems Plc | Detection of defects in welded structures |
US7681452B2 (en) * | 2006-01-04 | 2010-03-23 | General Electric Company | Junior ultrasonic miniature air gap inspection crawler |
US7555966B2 (en) * | 2006-05-30 | 2009-07-07 | General Electric Company | Micro miniature air gap inspection crawler |
DE102011109717B3 (en) * | 2011-08-06 | 2012-10-11 | Ndt Systems & Services Gmbh & Co. Kg | Method and sensor carrier for roofing measurement of pipes by ultrasonic testing |
US9581530B2 (en) * | 2014-07-09 | 2017-02-28 | Brigham Young University | Multichannel impact response for material characterization |
US9778231B2 (en) * | 2015-05-13 | 2017-10-03 | Spirit Aerosystems, Inc. | Ultrasonic inspection end effector |
WO2016205207A1 (en) | 2015-06-14 | 2016-12-22 | Brigham Young University | Flexible elements for probes and guard rings |
CN113281418B (en) * | 2021-05-17 | 2022-04-01 | 燕山大学 | Ultrasonic flaw detection robot and flaw detection method for inner surface of large casting hole |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3029382A (en) * | 1959-08-31 | 1962-04-10 | Russell C Heldenbrand | Electro-magnetic flaw finder |
US3299350A (en) * | 1964-02-24 | 1967-01-17 | Plastic Applicators | Rotating pipe inspection assembly with solenoid operated means to raise and lower the sensor means |
DE2021278A1 (en) * | 1970-04-30 | 1971-11-11 | Salzgitter Peine Stahlwerke | Process and device for the ultrasonic testing of metal sheets, strips or pipes |
US3628375A (en) * | 1970-04-28 | 1971-12-21 | Dominick A Pagano | Apparatus for ultrasonic inspection of a length of test material |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3205435A (en) * | 1956-09-19 | 1965-09-07 | United Gas Corp | Apparatus having rotating coil and magnet assembly for testing the thickness of tubular elements |
US3238448A (en) * | 1961-06-06 | 1966-03-01 | American Mach & Foundry | Pipeline flaw detector and marker |
US3413653A (en) * | 1967-07-25 | 1968-11-26 | American Mach & Foundry | Acoustic leak detecting apparatus |
US3478576A (en) * | 1967-08-18 | 1969-11-18 | American Mach & Foundry | Acoustic leak detecting apparatus and method |
US3810384A (en) * | 1971-02-01 | 1974-05-14 | D Evans | Ultrasonic pipeline inspection device |
SU369485A1 (en) * | 1971-02-15 | 1973-02-08 | ULTRASONIC DEVICE FOR IMMERSION TUBE CONTROL OF COMPLEX PROFILE | |
US3754275A (en) * | 1971-09-17 | 1973-08-21 | Amf Inc | Method and apparatus for correlating a pipeline inspection record to known external locations |
US3786684A (en) * | 1971-12-27 | 1974-01-22 | Automation Ind Inc | Pipeline inspection pig |
US3960006A (en) * | 1973-12-03 | 1976-06-01 | Alco Standard Corporation | Non-destructive test apparatus and method for a material having a cavity therein |
SU550573A1 (en) * | 1974-07-04 | 1977-03-15 | Научно-производственное объединение "ЭНЕРГИЯ" | Ultrasound Testing Device |
US4055990A (en) * | 1975-07-28 | 1977-11-01 | Frederick Victor Topping | Pipeline inspection apparatus |
GB1535252A (en) * | 1976-04-09 | 1978-12-13 | British Gas Corp | Pipeline inspection vehicles |
US4146791A (en) * | 1976-05-20 | 1979-03-27 | Institutt For Atomenergi | Method and measuring device for testing the support and or covering of an oil or gas pipeline |
EP0001674B1 (en) * | 1977-08-23 | 1981-08-12 | British Gas Corporation | Wheel probe for ultrasonic inspection of pipelines |
US4170902A (en) * | 1978-05-18 | 1979-10-16 | British Gas Corporation | Pipeline inspection vehicles |
US4217782A (en) * | 1978-07-25 | 1980-08-19 | W. C. Lamb | Ultrasonic inspection device and method of inspection |
-
1979
- 1979-02-28 GB GB7907148A patent/GB2043248B/en not_active Expired
- 1979-08-20 US US06/067,791 patent/US4285243A/en not_active Expired - Lifetime
-
1980
- 1980-02-21 WO PCT/GB1980/000029 patent/WO1980001842A1/en active IP Right Grant
- 1980-02-21 DE DE803034319A patent/DE3034319A1/en active Granted
- 1980-02-27 CA CA000346568A patent/CA1134936A/en not_active Expired
- 1980-02-27 AU AU55924/80A patent/AU514780B2/en not_active Ceased
- 1980-02-27 IT IT67300/80A patent/IT1128387B/en active
- 1980-09-11 EP EP80900368A patent/EP0024397B1/en not_active Expired
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3029382A (en) * | 1959-08-31 | 1962-04-10 | Russell C Heldenbrand | Electro-magnetic flaw finder |
US3299350A (en) * | 1964-02-24 | 1967-01-17 | Plastic Applicators | Rotating pipe inspection assembly with solenoid operated means to raise and lower the sensor means |
US3628375A (en) * | 1970-04-28 | 1971-12-21 | Dominick A Pagano | Apparatus for ultrasonic inspection of a length of test material |
DE2021278A1 (en) * | 1970-04-30 | 1971-11-11 | Salzgitter Peine Stahlwerke | Process and device for the ultrasonic testing of metal sheets, strips or pipes |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0039922A2 (en) * | 1980-05-08 | 1981-11-18 | Westinghouse Electric Corporation | Apparatus for ultrasonically inspecting circular bores |
EP0039922A3 (en) * | 1980-05-08 | 1982-05-26 | Westinghouse Electric Corporation | Apparatus for ultrasonically inspecting circular bores |
EP0106527A2 (en) * | 1982-09-15 | 1984-04-25 | Schlumberger Electronics (U.K.) Limited | Ultrasonic inspection devices |
EP0106527A3 (en) * | 1982-09-15 | 1985-05-15 | Schlumberger Electronics (U.K.) Limited | Ultrasonic inspection devices |
DE3412519A1 (en) * | 1984-04-04 | 1985-10-24 | Kraftwerk Union AG, 4330 Mülheim | Test head holder for a self-propelled internal pipe manipulator |
EP0255619A2 (en) * | 1986-08-06 | 1988-02-10 | Pipetronix GmbH | Apparatus for measuring and non-destructive material testing of laid pipelines |
EP0255619A3 (en) * | 1986-08-06 | 1989-05-31 | Pipetronix Gmbh | Apparatus for measuring and non-destructive material testing of laid pipelines |
WO1990003572A1 (en) * | 1988-09-22 | 1990-04-05 | Krautkrämer Gmbh & Co. | A device for the ultrasonic inspection of elongated, rotation-symmetrical test-pieces by the single-probe pulse reflection process |
EP0882947A2 (en) * | 1997-06-04 | 1998-12-09 | Sonic Techologies Limited | Measuring the thickness of a liner for a pipe |
EP0882947A3 (en) * | 1997-06-04 | 2000-08-23 | Sonic Techologies Limited | Measuring the thickness of a liner for a pipe |
WO2004106802A1 (en) * | 2003-06-02 | 2004-12-09 | Onesteel Manufacturing Pty Ltd | Ultrasonic testing of pipe |
AU2004243333B2 (en) * | 2003-06-02 | 2006-12-07 | Onesteel Trading Pty Ltd | Ultrasonic testing of pipe |
AU2004243333C1 (en) * | 2003-06-02 | 2009-01-22 | Onesteel Trading Pty Ltd | Ultrasonic testing of pipe |
Also Published As
Publication number | Publication date |
---|---|
DE3034319A1 (en) | 1981-04-09 |
EP0024397B1 (en) | 1982-11-03 |
AU5592480A (en) | 1980-09-11 |
CA1134936A (en) | 1982-11-02 |
EP0024397A1 (en) | 1981-03-11 |
GB2043248A (en) | 1980-10-01 |
IT8067300A0 (en) | 1980-02-27 |
US4285243A (en) | 1981-08-25 |
DE3034319C2 (en) | 1989-06-01 |
IT1128387B (en) | 1986-05-28 |
AU514780B2 (en) | 1981-02-26 |
GB2043248B (en) | 1983-04-27 |
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