GB2277157B - Method and test probe for the non-destructive testing of the surfaces of electrically conductive materials - Google Patents

Method and test probe for the non-destructive testing of the surfaces of electrically conductive materials

Info

Publication number
GB2277157B
GB2277157B GB9406230A GB9406230A GB2277157B GB 2277157 B GB2277157 B GB 2277157B GB 9406230 A GB9406230 A GB 9406230A GB 9406230 A GB9406230 A GB 9406230A GB 2277157 B GB2277157 B GB 2277157B
Authority
GB
United Kingdom
Prior art keywords
electrically conductive
conductive materials
test probe
destructive testing
destructive
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 - Fee Related
Application number
GB9406230A
Other versions
GB2277157A (en
GB9406230D0 (en
Inventor
Klaus Dobler
Hansjoerg Hachtel
Stanislaw Bodzak
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB9406230D0 publication Critical patent/GB9406230D0/en
Publication of GB2277157A publication Critical patent/GB2277157A/en
Application granted granted Critical
Publication of GB2277157B publication Critical patent/GB2277157B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G01N27/9046—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 by analysing electrical signals

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)
GB9406230A 1993-04-02 1994-03-29 Method and test probe for the non-destructive testing of the surfaces of electrically conductive materials Expired - Fee Related GB2277157B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19934310893 DE4310893C2 (en) 1993-04-02 1993-04-02 Process and test probe for non-destructive testing of the surfaces of electrically conductive materials

Publications (3)

Publication Number Publication Date
GB9406230D0 GB9406230D0 (en) 1994-05-18
GB2277157A GB2277157A (en) 1994-10-19
GB2277157B true GB2277157B (en) 1997-10-29

Family

ID=6484611

Family Applications (2)

Application Number Title Priority Date Filing Date
GB9406230A Expired - Fee Related GB2277157B (en) 1993-04-02 1994-03-29 Method and test probe for the non-destructive testing of the surfaces of electrically conductive materials
GBGB9718522.7A Pending GB9718522D0 (en) 1993-04-02 1997-09-01 Method and test probe for the non-destructive testing of the surfaces of electrically conductive materials

Family Applications After (1)

Application Number Title Priority Date Filing Date
GBGB9718522.7A Pending GB9718522D0 (en) 1993-04-02 1997-09-01 Method and test probe for the non-destructive testing of the surfaces of electrically conductive materials

Country Status (3)

Country Link
DE (1) DE4310893C2 (en)
FR (1) FR2703465B1 (en)
GB (2) GB2277157B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4310894A1 (en) * 1993-04-02 1994-10-06 Bosch Gmbh Robert Method and test probe for the non-destructive examination of surfaces of electrically conductive materials
DE19533708A1 (en) * 1995-09-12 1997-03-13 Panier Burkhard Dipl Ing Fh Test appts. which establishes quality of coated or enamelled metal sheet esp. of old car bodies

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB908228A (en) * 1959-09-04 1962-10-17 Magnetic Analysis Corp Improvements in multi-frequency testing
GB1255179A (en) * 1968-12-03 1971-12-01 Nat Res Dev Non-destructive testing of materials
GB2090977A (en) * 1981-01-12 1982-07-21 Atomic Energy Authority Uk Multi-frequency eddy-current testing
GB2141234A (en) * 1983-06-07 1984-12-12 Mo Energeticheskij Institut Eddy-current flaw detector
GB2224575A (en) * 1988-11-04 1990-05-09 Technical Software Consultants Displaying features (eg defects) of an electrically conductive component
EP0394158A1 (en) * 1989-04-18 1990-10-24 Institut De Recherches De La Siderurgie Francaise (Irsid) Method and apparatus for non-destructively controlling magnetic material, having a structure gradient in its superficial part
US5144565A (en) * 1990-03-26 1992-09-01 K. J. Law Engineers, Inc. Measurement of metallurgical properties in ferromagnetic test parts

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR971234A (en) * 1940-01-24 1951-01-15 Measurement and control device
US3340466A (en) * 1962-04-12 1967-09-05 Hitachi Ltd Nondestructive testers utilizing highfrequency and low-frequency eddy currents to test for surface and subsurface defects
DE2739873A1 (en) * 1977-09-05 1979-03-08 Fraunhofer Ges Forschung Eddy current materials testing - using multiple frequencies and multiplexers controlled by timing pulse generator
DE2817574B2 (en) * 1978-04-21 1980-04-30 Kraftwerk Union Ag, 4330 Muelheim Eddy current probe for examining metallic materials for material separation and defective inclusions
SE8302738L (en) * 1983-05-16 1984-11-17 Bengt Hjalmar Tornblom DEVICE AND / OR SET BASED ON THE FREQUENCY PRINCIPLE
SE457117B (en) * 1984-02-17 1988-11-28 Bengt Hjalmar Toernblom SET AND DEVICE FOR TESTING ELECTRICALLY CONDUCTIVE SAMPLES
CH670504A5 (en) * 1986-11-25 1989-06-15 Battelle Memorial Institute
US4855677A (en) * 1988-03-11 1989-08-08 Westinghouse Electric Corp. Multiple coil eddy current probe and method of flaw detection
US5017869A (en) * 1989-12-14 1991-05-21 General Electric Company Swept frequency eddy current system for measuring coating thickness

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB908228A (en) * 1959-09-04 1962-10-17 Magnetic Analysis Corp Improvements in multi-frequency testing
GB1255179A (en) * 1968-12-03 1971-12-01 Nat Res Dev Non-destructive testing of materials
GB2090977A (en) * 1981-01-12 1982-07-21 Atomic Energy Authority Uk Multi-frequency eddy-current testing
GB2141234A (en) * 1983-06-07 1984-12-12 Mo Energeticheskij Institut Eddy-current flaw detector
GB2224575A (en) * 1988-11-04 1990-05-09 Technical Software Consultants Displaying features (eg defects) of an electrically conductive component
EP0394158A1 (en) * 1989-04-18 1990-10-24 Institut De Recherches De La Siderurgie Francaise (Irsid) Method and apparatus for non-destructively controlling magnetic material, having a structure gradient in its superficial part
US5144565A (en) * 1990-03-26 1992-09-01 K. J. Law Engineers, Inc. Measurement of metallurgical properties in ferromagnetic test parts

Also Published As

Publication number Publication date
FR2703465B1 (en) 1997-01-03
FR2703465A1 (en) 1994-10-07
DE4310893A1 (en) 1994-10-06
DE4310893C2 (en) 1995-05-04
GB2277157A (en) 1994-10-19
GB9718522D0 (en) 1997-11-05
GB9406230D0 (en) 1994-05-18

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Legal Events

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

Effective date: 20040329

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20040329