IT1249976B - DEVICE FOR THE NON-DESTRUCTIVE EXAMINATION OF MATERIALS - Google Patents

DEVICE FOR THE NON-DESTRUCTIVE EXAMINATION OF MATERIALS

Info

Publication number
IT1249976B
IT1249976B ITTO910627A ITTO910627A IT1249976B IT 1249976 B IT1249976 B IT 1249976B IT TO910627 A ITTO910627 A IT TO910627A IT TO910627 A ITTO910627 A IT TO910627A IT 1249976 B IT1249976 B IT 1249976B
Authority
IT
Italy
Prior art keywords
measuring
hall probes
head
piece
destructive examination
Prior art date
Application number
ITTO910627A
Other languages
Italian (it)
Inventor
Roman Koch
Original Assignee
Nukem Gmbh
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
Priority claimed from DE9011478U external-priority patent/DE9011478U1/en
Priority claimed from DE9011477U external-priority patent/DE9011477U1/en
Application filed by Nukem Gmbh filed Critical Nukem Gmbh
Publication of ITTO910627A0 publication Critical patent/ITTO910627A0/en
Publication of ITTO910627A1 publication Critical patent/ITTO910627A1/en
Application granted granted Critical
Publication of IT1249976B publication Critical patent/IT1249976B/en

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
    • G01N27/83—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields
    • 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
    • G01N29/24—Probes
    • G01N29/2412—Probes using the magnetostrictive properties of the material to be examined, e.g. electromagnetic acoustic transducers [EMAT]

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electromagnetism (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

Si propone un dispositivo per l'esame non distruttivo di pezzi cilindrici, come tubi, e della estremità di essi per mezzo di misurazione del flusso disperso ed eventualmente di ultrasuoni eccitati elettrodinamicamente. Una testa di misura (56) utilizzata per misurare il flusso disperso comprende almeno due sonde di hall (89) disposte lungo una linea estendentesi parallelamente e/o verticalmente ad un campo magnetico generato da un magnete. Inoltre, la testa di misura del flusso disperso presenta almeno due pattini (94, 96,98, 100) distanziati tra di loro, appoggiabili sul pezzo e tra i quali sono disposte le sonde di Hall. Anche la testa di misura del flusso disperso è provvista di una piastra di protezione che copre sul lato del pezzo le superfici delle sonde di Hall.A device is proposed for the non-destructive examination of cylindrical pieces, such as tubes, and of the end of them by means of measuring the dispersed flow and possibly ultrasound excited electrodynamically. A measuring head (56) used to measure the dispersed flow comprises at least two hall probes (89) arranged along a line extending parallel and / or vertically to a magnetic field generated by a magnet. Furthermore, the head for measuring the dispersed flow has at least two shoes (94, 96.98, 100) spaced from each other, resting on the piece and between which the Hall probes are arranged. The leakage flow measuring head is also equipped with a protection plate that covers the surfaces of the Hall probes on the side of the piece.

ITTO910627A 1990-08-07 1991-08-06 DEVICE FOR THE NON-DESTRUCTIVE EXAMINATION OF MATERIALS IT1249976B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9011478U DE9011478U1 (en) 1990-08-07 1990-08-07 Arrangement for non-destructive material testing
DE9011477U DE9011477U1 (en) 1990-08-07 1990-08-07 Arrangement for non-destructive material testing

Publications (3)

Publication Number Publication Date
ITTO910627A0 ITTO910627A0 (en) 1991-08-06
ITTO910627A1 ITTO910627A1 (en) 1993-02-06
IT1249976B true IT1249976B (en) 1995-03-30

Family

ID=25957006

Family Applications (1)

Application Number Title Priority Date Filing Date
ITTO910627A IT1249976B (en) 1990-08-07 1991-08-06 DEVICE FOR THE NON-DESTRUCTIVE EXAMINATION OF MATERIALS

Country Status (2)

Country Link
FR (1) FR2665768B1 (en)
IT (1) IT1249976B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109142636A (en) * 2018-09-13 2019-01-04 江阴市长泾车船附件有限公司 A kind of rod and tube kind detection device that can be detected a flaw comprehensively

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11673429B2 (en) 2020-08-24 2023-06-13 Evident Canada, Inc. Shoe interface wear indicator

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4087749A (en) * 1977-01-25 1978-05-02 The United States Of America As Represented By The Secretary Of The Army Method and apparatus for normalizing the outputs of sequentially scanned magnetic flaw detectors
US4258318A (en) * 1977-06-24 1981-03-24 Sumitomo Kinzoku Kogyo Kabushiki Kaisha Flaw detector for pipe employing magnets located outside the pipe and detector mounted inside and movable along the pipe with the magnets
DE3128825C2 (en) * 1981-07-21 1985-04-18 Nukem Gmbh, 6450 Hanau Device for the non-destructive testing of ferromagnetic materials
JPS59217158A (en) * 1983-05-26 1984-12-07 Mitsubishi Electric Corp Defect detector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109142636A (en) * 2018-09-13 2019-01-04 江阴市长泾车船附件有限公司 A kind of rod and tube kind detection device that can be detected a flaw comprehensively

Also Published As

Publication number Publication date
ITTO910627A1 (en) 1993-02-06
FR2665768B1 (en) 1993-08-13
FR2665768A1 (en) 1992-02-14
ITTO910627A0 (en) 1991-08-06

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19950831