[go: up one dir, main page]

GB1266645A - - Google Patents

Info

Publication number
GB1266645A
GB1266645A GB1266645DA GB1266645A GB 1266645 A GB1266645 A GB 1266645A GB 1266645D A GB1266645D A GB 1266645DA GB 1266645 A GB1266645 A GB 1266645A
Authority
GB
United Kingdom
Prior art keywords
july
objects
surface defects
defects
elektrophysik
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
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 filed Critical
Publication of GB1266645A publication Critical patent/GB1266645A/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
    • G01N27/9046—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
    • 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

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 Ultrasonic Waves (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)

Abstract

1,266,645. Detecting defects in objects. DR. J. U. H. KRAUTKRAMER GES. FUR. ELEKTROPHYSIK. July 24, 1970 [July 26, 1969], No.36147/70. Heading G1N . Objects of magnetizable materials are tested for surface defects by magnetizing the object and at the same time feeding to or generating in the object acoustic energy, so that the flux emanating from surface defects has an A.C. component. Ultrasonic or subsonic frequencies may be used.
GB1266645D 1969-07-26 1970-07-24 Expired GB1266645A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691938107 DE1938107C3 (en) 1969-07-26 1969-07-26 Leakage flux test method for magnetizable material

Publications (1)

Publication Number Publication Date
GB1266645A true GB1266645A (en) 1972-03-15

Family

ID=5741024

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1266645D Expired GB1266645A (en) 1969-07-26 1970-07-24

Country Status (4)

Country Link
JP (1) JPS5031033B1 (en)
DE (1) DE1938107C3 (en)
FR (1) FR2053185B1 (en)
GB (1) GB1266645A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4309905A (en) * 1979-12-26 1982-01-12 Maizenberg Mikhail I Method for detecting non-uniformities of magnetic materials and device for effecting same
DE3128825C2 (en) * 1981-07-21 1985-04-18 Nukem Gmbh, 6450 Hanau Device for the non-destructive testing of ferromagnetic materials
US4497209A (en) * 1983-07-12 1985-02-05 Southwest Research Institute Nondestructive testing of stress in a ferromagnetic structural material utilizing magnetically induced velocity change measurements
DE3421404A1 (en) * 1984-06-08 1985-12-12 Mecapec S.A., Schmerikon Method and appliances for detecting surface defects on rod-shaped ferromagnetic material
PL148290B1 (en) * 1985-03-05 1989-10-31 Wyzsza Szkola Pedagog Magnetic defectograph sensing element for determining changes in cross-sectional areas over substantial length of an object being examined
DE3515977A1 (en) * 1985-05-03 1986-11-06 Nukem Gmbh, 6450 Hanau METHOD AND DEVICE FOR DESTRUCTION-FREE TESTING OF FERROMAGNETIC BODIES

Also Published As

Publication number Publication date
FR2053185B1 (en) 1973-04-27
JPS5031033B1 (en) 1975-10-06
DE1938107A1 (en) 1971-01-28
DE1938107B2 (en) 1979-01-11
DE1938107C3 (en) 1979-09-06
FR2053185A1 (en) 1971-04-16

Similar Documents

Publication Publication Date Title
GB1120334A (en) Ultrasonic inspection
CA918286A (en) Non-destructive method of grading wood materials
GB1266645A (en)
FR1515617A (en) Method and acoustic device for non-destructive testing of materials
CA939008A (en) Non-destructive testing apparatus for ferromagnetic materials
GB1139704A (en) Method of and apparatus for non-destructive testing of ferromagnetic materials
JPS52139485A (en) Follow-up apparatus for use in high-speed ultrasonic flaw detection
CA721213A (en) Testing agent for the detection of flaws in articles and components
GB1142145A (en) Method of, and apparatus for, testing the thickness of non-magnetic sheet material
AU230250B2 (en) Apparatus for the nondestructive detection of flaws in metal
CA703227A (en) Method and composition for non-destructive analysis
CA520029A (en) Solid feeding method and means for fluid-type pulverizers
GB823232A (en) An arrangements for the non-destructive ultrasonic testing of material
JPS51146885A (en) Steel material ultrasonic wave and eddy flaw detector
FR1108397A (en) Ultrasonic transducer for testing ferromagnetic materials
FI36659A (en) Method and apparatus for continuous quantitative determination of the magnetic component of a solid in a slurry
CA509911A (en) Detection of stoppage in the flow of divided materials
CA722304A (en) Method of and apparatus for inspecting work pieces
CA660267A (en) Non-destructive testing for materials by pulsed electromagnetic waves
AU6172360A (en) Improvements in and relating to apparatus for ultrasonic flaw detection
AU404013B2 (en) Ultrasonic flaw detecting method and apparatus
CA505508A (en) Apparatus for use in detecting the passage of objects
GB537693A (en) Improvements relating to the demagnetising and also the magnetising of articles
AU257210B2 (en) Improvements in or relating toa method of determining the relative proportional relationship ofthe size of particles present ina particular material, and apparatus therefor
GB829865A (en) Improvements in or relating to automatic dew-point detecting apparatus

Legal Events

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