IT974102B - Circuito a risonanza per la misura zione delle caratteristiche magneti che di materiale conduttivo magneti co od a correnti parassite - Google Patents

Circuito a risonanza per la misura zione delle caratteristiche magneti che di materiale conduttivo magneti co od a correnti parassite

Info

Publication number
IT974102B
IT974102B IT5475372A IT5475372A IT974102B IT 974102 B IT974102 B IT 974102B IT 5475372 A IT5475372 A IT 5475372A IT 5475372 A IT5475372 A IT 5475372A IT 974102 B IT974102 B IT 974102B
Authority
IT
Italy
Prior art keywords
magnets
measuring
conductive material
eddy current
resonance circuit
Prior art date
Application number
IT5475372A
Other languages
English (en)
Original Assignee
Nippon Kokan Kk
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 Nippon Kokan Kk filed Critical Nippon Kokan Kk
Application granted granted Critical
Publication of IT974102B publication Critical patent/IT974102B/it

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/12—Measuring magnetic properties of articles or specimens of solids or fluids
    • 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
    • G01N27/9006—Details, e.g. in the structure or functioning of sensors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
IT5475372A 1971-12-16 1972-12-15 Circuito a risonanza per la misura zione delle caratteristiche magneti che di materiale conduttivo magneti co od a correnti parassite IT974102B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10144171A JPS5228388B2 (it) 1971-12-16 1971-12-16

Publications (1)

Publication Number Publication Date
IT974102B true IT974102B (it) 1974-06-20

Family

ID=14300765

Family Applications (1)

Application Number Title Priority Date Filing Date
IT5475372A IT974102B (it) 1971-12-16 1972-12-15 Circuito a risonanza per la misura zione delle caratteristiche magneti che di materiale conduttivo magneti co od a correnti parassite

Country Status (4)

Country Link
JP (1) JPS5228388B2 (it)
DE (1) DE2261498A1 (it)
FR (1) FR2163687A1 (it)
IT (1) IT974102B (it)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4000458A (en) * 1975-08-21 1976-12-28 Bell Telephone Laboratories, Incorporated Method for the noncontacting measurement of the electrical conductivity of a lamella
DE3238089A1 (de) * 1982-10-14 1984-04-19 Ballhaus, Heribert, Dipl.-Ing. Dr.-Ing, 7517 Waldbronn Geraet zur detektion von korrosionsschaeden an stahlseilfoerdergurten
JPS6147554A (ja) * 1984-08-13 1986-03-08 Kobe Steel Ltd フラツクス充填率のばらつき検知方法
US4668913A (en) * 1985-03-14 1987-05-26 International Business Machines Corporation Constant flux magneto resistive magnetic reluctance sensing apparatus
DE3815009A1 (de) * 1988-04-30 1989-11-09 Leybold Ag Einrichtung und verfahren zum zerstoerungsfreien messen des ohmschen widerstands duenner schichten nach dem wirbelstrom-prinzip
JP2008224409A (ja) * 2007-03-13 2008-09-25 Railway Technical Res Inst 非破壊検査用キャパシタンスセンサ

Also Published As

Publication number Publication date
JPS4866884A (it) 1973-09-13
FR2163687A1 (it) 1973-07-27
DE2261498A1 (de) 1973-06-28
JPS5228388B2 (it) 1977-07-26

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