GB2425228A - Non destructive testing inspection apparatus for three dimensional objects - Google Patents

Non destructive testing inspection apparatus for three dimensional objects Download PDF

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Publication number
GB2425228A
GB2425228A GB0507288A GB0507288A GB2425228A GB 2425228 A GB2425228 A GB 2425228A GB 0507288 A GB0507288 A GB 0507288A GB 0507288 A GB0507288 A GB 0507288A GB 2425228 A GB2425228 A GB 2425228A
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GB
United Kingdom
Prior art keywords
inspection
data
tracking device
position tracking
optical
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB0507288A
Other versions
GB2425228B (en
GB0507288D0 (en
Inventor
Didar S Dulay
Rajesh Taneja
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NDT CONSULTANTS Ltd
Original Assignee
NDT CONSULTANTS Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NDT CONSULTANTS Ltd filed Critical NDT CONSULTANTS Ltd
Priority to GB0507288A priority Critical patent/GB2425228B/en
Publication of GB0507288D0 publication Critical patent/GB0507288D0/en
Publication of GB2425228A publication Critical patent/GB2425228A/en
Application granted granted Critical
Publication of GB2425228B publication Critical patent/GB2425228B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00Investigating 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
    • G01N29/04Analysing solids
    • G01N29/06Visualisation of the interior, e.g. acoustic microscopy
    • G01N29/0609Display arrangements, e.g. colour displays
    • G01N29/0618Display arrangements, e.g. colour displays synchronised with scanning, e.g. in real-time
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/16Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using electromagnetic waves other than radio waves
    • G01S5/163Determination of attitude
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/72Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
    • G01N27/82Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
    • G01N27/90Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00Investigating 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
    • G01N29/22Details, e.g. general constructional or apparatus details
    • G01N29/24Probes
    • G01N29/2481Wireless probes, e.g. with transponders or radio links
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00Investigating 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
    • G01N29/22Details, e.g. general constructional or apparatus details
    • G01N29/26Arrangements for orientation or scanning by relative movement of the head and the sensor
    • G01N29/265Arrangements for orientation or scanning by relative movement of the head and the sensor by moving the sensor relative to a stationary material
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/66Tracking systems using electromagnetic waves other than radio waves
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/88Lidar systems specially adapted for specific applications
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/003Transmission of data between radar, sonar or lidar systems and remote stations

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Acoustics & Sound (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

A non destructive (NDT) inspection system is disclosed comprising an inspection device 16 having a transducer placeable in contact with and moveable over the surface of an object 12 to be inspected. A remote position tracking device 24 is arranged to track the movement of the inspection device 16 over the surface of the object 12. A data storage, retrieval and display device, such as a computer 20, is arranged to receive inspection data from the inspection device 16 and positional data from the position tracking device 24. The position tracking device 24 is an optical tracking device and is arranged to transmit position data to the data storage device 20 wirelessly. The NDT inspection system may operate in accordance with any conventional NDT inspection technology such as eddy current or ultrasonic technology. The optical tracking device 24 may be an optical radar device operating in the near infrared range.

Description

Improved NDT Inspection Apparatus and Method The present invention relates
to non-destructive testing (NDT) inspection apparatus and in particular to NDT inspection apparatus for three dimensional objects.
NDT inspection is used for the detection of defects in the surfaces of large objects such as, for example, aircraft wings, forgings and pipes. Such defects may not be visible to the human eye and hence an appropriately configured inspection device is moved over the surface of the object. Depending upon the nature and material of the object to be tested the inspection device may utilise, for example eddy current inspection technology or ultrasonic inspection technology.
The inspection device is moved over the surface of the object under test and the output fed to a recording device such as, for example, a computer. With the aid of appropriate software the inspection device and computer are able to produce a two dimensional map of the surface of the object which highlights any defects found.
In certain circumstances it may be advantageous to show the map in a three dimensional form which minors the form of the surface under test. One method of preparing such a map involves monitoring the spatial position of the inspection device as it is moved over the surface of the object. Systems have been proposed which utilise a jig which surrounds the test object and to which the inspection device is connected mechanically, for example by an articulated arm. Movement of the inspection device results in movement of the arm which in turn is recorded. An alternative system utilises a ultrasonic transmitter mounted on the inspection device and at least three ultrasonic receivers poisoned around the inspection device. The position of the inspection device is determined by triangulation.
According to a first aspect of the present invention there is provided an NDT inspection system comprising an NDT inspection device having a transducer placeable in contact with and movable over the surface of an object to be inspected, a remote position tracking device arranged to track the movement of the NDT inspection device over the surface of the object, and a data storage, retrieval and manipulation device having a display, the data storage, retrieval and display device being arranged to receive inspection data from the NDT inspection device and positional data from the position tracking device, wherein the position tracking device is an optical tracking device and the position tracking device is arranged to transmit position data to the data storage, retrieval and manipulation device wirelessly.
The position tracking device is provided with wireless transmission device which is preferably a bluetooth device. The optical position tracking device is preferably a 3-D optical radar device. The tracking device may advantageously operate in the near infrared range. The NDT inspection device may be provided with a fixed marker which is tracked by the position tracking device.
According to a second aspect of the present invention there is provided an NDT inspection device position tracking apparatus comprising an optical position tracking device operable to track the position of a NDT inspection device situated remote from the tracking apparatus, a wireless transmission device arranged to receive data from the tracking device and transmit said data to a remote location, and a rechargeable power source arranged to power both the tracking device and the wireless transmission device.
The wireless transmission device is preferably a bluetooth device. The optical position tracking device is preferably a 3-D optical radar device. The tracking device may advantageously operate in the near infrared range.
According to a third aspect of the present invention there is provided a method of undertaking an NDT inspection of the three dimensional object, the method comprising the steps of: providing an object to be inspected; providing an NDT inspection device having a transducer placeable in contact with and movable over the object; providing a remote optical position tracking device ananged to track the movement of the NDT inspection device over the surface of the object, providing a data storage, retrieval and manipulation device having a display, the data storage, retrieval and display device being arranged to receive inspection data from the NDT inspection device and positional data from the position tracking device; moving the NDT inspection device over the surface of the object and simultaneously acquiring inspection data from the NDT inspection device and position data from the optical position tracking device; and supplying the inspection and position data to the data storage, retrieval and manipulation device, wherein the step of supplying the position data from the optical position tracking device to the data storage, retrieval and manipulation device is achieved in a wireless manner.
An embodiment of the invention will now be described with reference to figure 1 which shows a scanning system generally designated 10 for use in the NDT scanning of the surface of a three dimensional object 12. The object 12 is shown to be cylindrical for the purpose of illustration only and as such is not intended to be limiting upon the shape of objects which may be scanned by a system in accordance with the present invention The system 10 comprises an NDT inspection device 13 having a base unit 14 and an inspection head or transducer 16 movable over the object 12, a position tracking apparatus 18 arranged to track the position of the transducer 16 and an information storage and retrieval device, such as a computer 20, arranged to receive information from both the NDT inspection device 14 and the position tracking apparatus 18.
The position tracking apparatus 18 comprises a housing 22 within which is contained an optical position tracking device 24, a power source 26 and wireless transmitter device 28 such as a Bluetooth transmission device. The position tracking device 24 comprises a 3-D optical radar device arranged to operate in the near infra red frequency band. The device 24 is provided with both an optical transmitter and an optical receiver and is configured to track the position of an appropriately configured target. The optical transmitter and receiver are ananged to act through spaced apertures of the device 24 so as to provide the device with a stereo view of a target to be tracked. The optical transmitter is configured to emit near infrared light energy, while the optical receiver is arranged to receive infrared light energy reflected by the transducer The wireless transmitter device 28 is arranged to correspond with an appropriately configured wireless receiver device 30 associated with the computer 20. The wireless receiver device 30 may be incorporated within the computer 20 or connected thereto via an external port thereof. The power source 26 may comprise one or more rechargeable batteries which power both the optical position tracking device 24 and the wireless transmitter device 28.
The NDT inspection device 13 may operate in accordance with any conventional NDT inspection technology such as, for example, eddy current or ultrasonic technology. In the embodiment shown the transducer 16 is connected to the base unit 14 via a cable 32. The base unit 14 is in turn connected to the computer 20. The base unit 14 may be external to the computer 20 and connected thereto via a cable. Alternatively the base unit 14 may correspond with the computer in a wireless manner. The transducer 16 is provided with a target or marker 34 which is tracked by the position tracking device 24.
The marker 34 is reflective so as to reflect near infrared light energy emitted by the position tracking device.
Operation of the system 10 will now be described. The position tracking apparatus 18 and object 12 to be inspected are arranged such that the position tracking apparatus has a clear, unobstructed line of sight over the entire surface of the object 12. The apparatus 18 may, for example, be mounted slightly above and to one side of the object 12 on a stand or tripod. The provision of wireless communication between the apparatus 18 and the computer 20 enables the apparatus 18 to be placed in the most advantageous position to view the object 12. An operator moves the transducer 16 to a start position on the object 12 and then commences an inspection of the surface of the object 12 by moving the transducer 16 over the surface of the object 12 in a predetermined pattern. As the transducer 16 is moved over the object 12, information relating to the state and conditioii of the portion of the object 12 below the transducer 16 is passed to the base unit 14 and in turn to the computer 20.
Simultaneously with the acquisition of inspection data from the NDT inspection device 13 the computer 20 is supplied with information relating to the spatial position of the transducer 16 by the position tracking apparatus 18. As the transducer 16 is moved over the object 12 the corresponding movement in three dimensions of the marker 34 is observed by the position tracking device 24. Information relating to the movement of the marker 34 and hence the transducer 16 is passed to the wireless transmitter device 28 by the position tracking device 24 and subsequently sent to the wireless receiver 30 associated with the computer 20.
Software present upon the computer 20 is able to manipulate the positional data supplied by the position tracking apparatus 18 and the inspection data supplied by the inspection device 13 to provide a three dimensional map relating the inspection date to the surface topography of the object. The map may also be displayed in a conventional two dimensional from, which is to say in a form with the spatial position of the transducer 16 removed.
It will be appreciated that for the system 10 to operate effectively care must be taken by the operator not to obstruct the "view" by the position tracking device 24 of the marker 34. The position tracking apparatus 18 may thus he provided with an alarm to alert the operator in instances where the view is blocked.

Claims (11)

  1. Claims 1. An NDT inspection system comprising an NDT inspection device
    having a transducer placeable in contact with and movable over the surface of an object to be inspected, a remote position tracking device arranged to track the movement of the NDT inspection device over the surface of the object, and a data storage, retrieval and manipulation device having a display, the data storage, retrieval and display device being arranged to receive inspection data from the NDT inspection device and positional data from the position tracking device, wherein the position tracking device is an optical tracking device and the position tracking device is arranged to transmit position data to the data storage, retrieval and manipulation device wirelessly.
  2. 2. A system as claimed in claim 1, wherein the position tracking device is provided with wireless transmission device.
  3. 3. A system as claimed in claim 2 wherein the wireless transmission device is a bluetooth device.
  4. 4. A system as claimed in any preceding claim, wherein the optical positioii tracking device is a 3-D optical radar device.
  5. 5. A system as claimed in claim 4, wherein the tracking device operates in the near infrared range.
  6. 6. A system as claimed in any preceding claim, wherein the NDT inspection device is provided with a fixed marker which is tracked by the position tracking device.
  7. 7. An NDT inspection device position tracking apparatus comprising an optical position tracking device operable to track the position of a NDT inspection device situated remote from the tracking apparatus, a wireless transmission device arranged to receive data from the tracking device and transmit said data to a remote location, and a rechargeable power source arranged to power both the tracking device and the wireless transmission device.
  8. 8. An inspection device as claimed in claim 7, wherein the wireless transmission device is a bluetooth device.
  9. 9. An inspection device as claimed in claim 8, wherein the optical position tracking device is a 3-D optical radar device.
  10. 10. An inspection device as claimed in claim 9, wherein the tracking device operates in the near infrared range.
  11. 11. A method of undertaking an NDT inspection of the three dimensional object, the method comprising the steps of: providing an object to be inspected; providing an NDT inspection device having a transducer placeable in contact with and movable over the object; providing a remote optical position tracking device arranged to track the movement of the NDT inspection device over the surface of the object, providing a data storage, retrieval and manipulation device having a display, the data storage, retrieval and display device being arranged to receive inspection data from the NDT inspection device and positional data from the position tracking device; moving the NDT inspection device over the surface of the object and simultaneously acquiring inspection data from the NDT inspection device and position data from the optical position tracking device; and supplying the inspection and position data to the data storage, retrieval and manipulation device, wherein the step of supplying the position data from the optical position tracking device to the data storage, retrieval and manipulation device is achieved in a wireless manner.
GB0507288A 2005-04-11 2005-04-11 Improved NDT inspection apparatus and method Expired - Fee Related GB2425228B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0507288A GB2425228B (en) 2005-04-11 2005-04-11 Improved NDT inspection apparatus and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0507288A GB2425228B (en) 2005-04-11 2005-04-11 Improved NDT inspection apparatus and method

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GB0507288D0 GB0507288D0 (en) 2005-05-18
GB2425228A true GB2425228A (en) 2006-10-18
GB2425228B GB2425228B (en) 2008-04-16

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014116357A3 (en) * 2013-01-22 2014-12-24 General Electric Company Systems and methods for a non-destructive testing ecosystem
CN110632085A (en) * 2019-10-25 2019-12-31 重庆城市管理职业学院 A defect processing device system for NDT flaw detection parts of large steel castings
US10672046B2 (en) 2012-12-31 2020-06-02 Baker Hughes, A Ge Company, Llc Systems and methods for non-destructive testing online stores

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0221643A2 (en) * 1985-08-30 1987-05-13 Texas Instruments Incorporated Vision navigation system for free-roaming mobile robots
GB2285129A (en) * 1991-04-19 1995-06-28 Kawasaki Heavy Ind Ltd Ultrasonic defect testing

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0221643A2 (en) * 1985-08-30 1987-05-13 Texas Instruments Incorporated Vision navigation system for free-roaming mobile robots
GB2285129A (en) * 1991-04-19 1995-06-28 Kawasaki Heavy Ind Ltd Ultrasonic defect testing

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10672046B2 (en) 2012-12-31 2020-06-02 Baker Hughes, A Ge Company, Llc Systems and methods for non-destructive testing online stores
US11601332B2 (en) 2012-12-31 2023-03-07 Baker Hughes, A Ge Company, Llc Systems and methods for non-destructive testing online stores
WO2014116357A3 (en) * 2013-01-22 2014-12-24 General Electric Company Systems and methods for a non-destructive testing ecosystem
US10325298B2 (en) 2013-01-22 2019-06-18 General Electric Company Systems and methods for a non-destructive testing ecosystem
US11869052B2 (en) 2013-01-22 2024-01-09 Baker Hughes Holdings Llc Systems and methods for a non-destructive testing ecosystem
CN110632085A (en) * 2019-10-25 2019-12-31 重庆城市管理职业学院 A defect processing device system for NDT flaw detection parts of large steel castings
CN110632085B (en) * 2019-10-25 2022-06-07 重庆城市管理职业学院 Large-scale steel casting NDT position defect processing apparatus system that detects a flaw

Also Published As

Publication number Publication date
GB2425228B (en) 2008-04-16
GB0507288D0 (en) 2005-05-18

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PCNP Patent ceased through non-payment of renewal fee

Effective date: 20150411