GB2149116B - Method and apparatus for measuring wall thickness - Google Patents

Method and apparatus for measuring wall thickness

Info

Publication number
GB2149116B
GB2149116B GB08328993A GB8328993A GB2149116B GB 2149116 B GB2149116 B GB 2149116B GB 08328993 A GB08328993 A GB 08328993A GB 8328993 A GB8328993 A GB 8328993A GB 2149116 B GB2149116 B GB 2149116B
Authority
GB
United Kingdom
Prior art keywords
wall thickness
measuring wall
measuring
thickness
wall
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.)
Expired
Application number
GB08328993A
Other versions
GB8328993D0 (en
GB2149116A (en
Inventor
Norman Eustace Flournoy
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.)
Texaco Development Corp
Original Assignee
Texaco Development Corp
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 Texaco Development Corp filed Critical Texaco Development Corp
Priority to GB08328993A priority Critical patent/GB2149116B/en
Publication of GB8328993D0 publication Critical patent/GB8328993D0/en
Publication of GB2149116A publication Critical patent/GB2149116A/en
Application granted granted Critical
Publication of GB2149116B publication Critical patent/GB2149116B/en
Expired legal-status Critical Current

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
    • G01N29/221—Arrangements for directing or focusing the acoustical waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B17/00—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations
    • G01B17/02—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations for measuring thickness
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
    • G01B7/06—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness
    • G01B7/10—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness using magnetic means, e.g. by measuring change of reluctance
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
    • G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
    • 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
    • G01N29/04—Analysing solids
    • G01N29/043—Analysing solids in the interior, e.g. by shear waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/02854—Length, thickness
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/10—Number of transducers
    • G01N2291/101—Number of transducers one transducer
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/26—Scanned objects
    • G01N2291/263—Surfaces
    • G01N2291/2636—Surfaces cylindrical from inside

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Acoustics & Sound (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
GB08328993A 1983-10-31 1983-10-31 Method and apparatus for measuring wall thickness Expired GB2149116B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08328993A GB2149116B (en) 1983-10-31 1983-10-31 Method and apparatus for measuring wall thickness

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08328993A GB2149116B (en) 1983-10-31 1983-10-31 Method and apparatus for measuring wall thickness

Publications (3)

Publication Number Publication Date
GB8328993D0 GB8328993D0 (en) 1983-11-30
GB2149116A GB2149116A (en) 1985-06-05
GB2149116B true GB2149116B (en) 1987-03-25

Family

ID=10550975

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08328993A Expired GB2149116B (en) 1983-10-31 1983-10-31 Method and apparatus for measuring wall thickness

Country Status (1)

Country Link
GB (1) GB2149116B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL9302247A (en) * 1993-12-23 1995-07-17 Hoogovens Tech Services Pulse-echo system with a multiple reflection system.
DE102005000698A1 (en) * 2005-01-04 2006-07-13 Giesecke & Devrient Gmbh Examination of value documents

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB931182A (en) * 1958-08-12 1963-07-10 Gen Electric Improvements in or relating to apparatus for controlling and measuring the thicknessof thin electrically conductive films
US3940689A (en) * 1974-05-14 1976-02-24 Schlumberger Technology Corporation Combined eddy current and leakage field detector for well bore piping using a unique magnetizer core structure
DE2652085A1 (en) * 1976-11-16 1978-05-18 Hoesch Werke Ag DEVICE FOR NON-DESTRUCTIVE MATERIAL TESTING
JPS5940265B2 (en) * 1978-02-13 1984-09-28 日本鋼管株式会社 Thermal billet eddy current flaw detection equipment
US4292588A (en) * 1978-12-18 1981-09-29 Schlumberger Technology Corporation Electromagnetic inspection tool for ferromagnetic casings
GB2095842B (en) * 1981-03-27 1985-07-03 Hocking Electronics Ltd Eddy current crack detection systems

Also Published As

Publication number Publication date
GB8328993D0 (en) 1983-11-30
GB2149116A (en) 1985-06-05

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee