AU436753B2 - Inside pipe diameter caliper using coaxial excitation and pick up coils - Google Patents

Inside pipe diameter caliper using coaxial excitation and pick up coils

Info

Publication number
AU436753B2
AU436753B2 AU43588/68A AU4358868A AU436753B2 AU 436753 B2 AU436753 B2 AU 436753B2 AU 43588/68 A AU43588/68 A AU 43588/68A AU 4358868 A AU4358868 A AU 4358868A AU 436753 B2 AU436753 B2 AU 436753B2
Authority
AU
Australia
Prior art keywords
coils
pick
pipe diameter
inside pipe
coaxial excitation
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
AU43588/68A
Other versions
AU4358868A (en
Inventor
JOHNSON McCULLOUGH and STANLEY GROVER STROUD ira
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AU43588/68A priority Critical patent/AU436753B2/en
Publication of AU4358868A publication Critical patent/AU4358868A/en
Application granted granted Critical
Publication of AU436753B2 publication Critical patent/AU436753B2/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G01B7/12—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring diameters
    • G01B7/13—Internal diameters
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00—Survey of boreholes or wells
    • E21B47/08—Measuring diameters or related dimensions at the borehole
    • E21B47/085—Measuring diameters or related dimensions at the borehole using radiant means, e.g. acoustic, radioactive or electromagnetic
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Environmental Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Electromagnetism (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Fluid Mechanics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
AU43588/68A 1968-09-19 1968-09-19 Inside pipe diameter caliper using coaxial excitation and pick up coils Expired AU436753B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU43588/68A AU436753B2 (en) 1968-09-19 1968-09-19 Inside pipe diameter caliper using coaxial excitation and pick up coils

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU43588/68A AU436753B2 (en) 1968-09-19 1968-09-19 Inside pipe diameter caliper using coaxial excitation and pick up coils

Publications (2)

Publication Number Publication Date
AU4358868A AU4358868A (en) 1970-03-26
AU436753B2 true AU436753B2 (en) 1973-06-08

Family

ID=3730851

Family Applications (1)

Application Number Title Priority Date Filing Date
AU43588/68A Expired AU436753B2 (en) 1968-09-19 1968-09-19 Inside pipe diameter caliper using coaxial excitation and pick up coils

Country Status (1)

Country Link
AU (1) AU436753B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0077757A1 (en) * 1981-10-16 1983-04-27 Battelle Memorial Institute Process for detecting failures in a dielectric coating on the surface of an electrically conducting substrate

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO166897C (en) * 1982-12-13 1991-09-11 Schlumberger Ltd PROCEDURE AND APPARATUS FOR MEASURING THE INTERNAL DIAMETER OF A METAL TUBE.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0077757A1 (en) * 1981-10-16 1983-04-27 Battelle Memorial Institute Process for detecting failures in a dielectric coating on the surface of an electrically conducting substrate
WO1983001514A1 (en) * 1981-10-16 1983-04-28 Vermot-Gaud, Jacques Method for detecting faults of a dielectric coating on the surface of an electrically conducting substrate

Also Published As

Publication number Publication date
AU4358868A (en) 1970-03-26

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