GB2034049B - Rotating head for testing elongated ferro-magnetic test pieces - Google Patents

Rotating head for testing elongated ferro-magnetic test pieces

Info

Publication number
GB2034049B
GB2034049B GB7934489A GB7934489A GB2034049B GB 2034049 B GB2034049 B GB 2034049B GB 7934489 A GB7934489 A GB 7934489A GB 7934489 A GB7934489 A GB 7934489A GB 2034049 B GB2034049 B GB 2034049B
Authority
GB
United Kingdom
Prior art keywords
test pieces
rotating head
magnetic test
ferro
testing elongated
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
GB7934489A
Other versions
GB2034049A (en
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.)
Institut Dr Friedrich Foerster Pruefgeraetebau GmbH and Co KG
Original Assignee
Institut Dr Friedrich Foerster Pruefgeraetebau GmbH and Co KG
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 Institut Dr Friedrich Foerster Pruefgeraetebau GmbH and Co KG filed Critical Institut Dr Friedrich Foerster Pruefgeraetebau GmbH and Co KG
Publication of GB2034049A publication Critical patent/GB2034049A/en
Application granted granted Critical
Publication of GB2034049B publication Critical patent/GB2034049B/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
    • 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
    • G01N27/90—Investigating 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
    • G01N27/9013—Arrangements for scanning

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
GB7934489A 1978-11-03 1979-10-04 Rotating head for testing elongated ferro-magnetic test pieces Expired GB2034049B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782847716 DE2847716C3 (en) 1978-11-03 1978-11-03 Rotating head for testing elongated ferromagnetic test material

Publications (2)

Publication Number Publication Date
GB2034049A GB2034049A (en) 1980-05-29
GB2034049B true GB2034049B (en) 1983-01-19

Family

ID=6053782

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7934489A Expired GB2034049B (en) 1978-11-03 1979-10-04 Rotating head for testing elongated ferro-magnetic test pieces

Country Status (3)

Country Link
DE (1) DE2847716C3 (en)
FR (1) FR2440553A1 (en)
GB (1) GB2034049B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4495465A (en) * 1982-05-03 1985-01-22 Rotesco Inc. Method and apparatus for non-destructive testing of magnetically permeable bodies using a first flux to saturate the body and a second flux opposing the first flux to produce a measurable flux
DE3603153A1 (en) * 1986-02-01 1987-08-06 Nukem Gmbh ARRANGEMENT FOR DESTRUCTION-FREE TESTING OF CYLINDER-SHAPED WORKPIECES
DE3708454A1 (en) * 1987-03-16 1988-09-29 Foerster Inst Dr Friedrich TEST HEAD AND METHOD FOR MANUFACTURING SUCH A TEST HEAD
JPH02221857A (en) * 1989-02-22 1990-09-04 Hara Denshi Sokki Kk Rotary head mechanism of rotary leakage magnetic flux flaw detecting machine
DE9011477U1 (en) * 1990-08-07 1990-12-20 Nukem GmbH, 63755 Alzenau Arrangement for non-destructive material testing
DE9011478U1 (en) * 1990-08-07 1990-12-20 Nukem GmbH, 63755 Alzenau Arrangement for non-destructive material testing
DE4314274C2 (en) * 1993-04-30 1995-11-30 Foerster Inst Dr Friedrich Method and device for automatic diameter adjustment of sensors of measuring and / or testing devices provided on a rotatingly driven test head
DE19963231A1 (en) * 1999-12-27 2001-06-28 Foerster Inst Dr Friedrich Test unit for wires, rods or pipes; has rotating head to guide test objects and moving probe holder to guide test probes around object with adjustment device to adjust diameter of guide path of probe
DE202005003685U1 (en) 2005-03-08 2005-10-13 Zindler, Pascale Mignard Technical innovations in the magnetic circuit of the Hochenergiewechselfeldjoch
JP5140677B2 (en) * 2006-09-28 2013-02-06 プリューフテヒニーク ディーター ブッシュ アクチェンゲゼルシャフト Leakage magnetic flux inspection device for tube-shaped object
US8264221B2 (en) * 2009-07-31 2012-09-11 Olympus Ndt Eddy current probe assembly adjustable for inspecting test objects of different sizes
CN111272865A (en) * 2020-03-11 2020-06-12 洛阳双瑞特种装备有限公司 Method for detecting defects of metal corrugated pipe based on array eddy current

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US3582771A (en) * 1968-09-11 1971-06-01 Amf Inc Movable inspection device with fluid pressure operated retractors mounted on a rotating member
US3736501A (en) * 1971-03-25 1973-05-29 Automation Ind Inc Rotatable test device having diametrically opposed sensors and counterweights interlinked for radial movement by centrifugal force

Also Published As

Publication number Publication date
FR2440553B1 (en) 1983-12-09
FR2440553A1 (en) 1980-05-30
DE2847716C3 (en) 1981-04-23
GB2034049A (en) 1980-05-29
DE2847716B2 (en) 1980-08-21
DE2847716A1 (en) 1980-05-08

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Legal Events

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

Effective date: 19951004