DE2261498A1 - Resonanzmesschaltung fuer magnetische eigenschaften - Google Patents

Resonanzmesschaltung fuer magnetische eigenschaften

Info

Publication number
DE2261498A1
DE2261498A1 DE19722261498 DE2261498A DE2261498A1 DE 2261498 A1 DE2261498 A1 DE 2261498A1 DE 19722261498 DE19722261498 DE 19722261498 DE 2261498 A DE2261498 A DE 2261498A DE 2261498 A1 DE2261498 A1 DE 2261498A1
Authority
DE
Germany
Prior art keywords
resonance
series
circuit
bridge circuit
input signal
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.)
Pending
Application number
DE19722261498
Other languages
German (de)
English (en)
Inventor
Seigo Ando
F Dr Zumstein Jun
Toshiro Mori
Patentanwaelte
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.)
JFE Engineering Corp
Original Assignee
Nippon Kokan Ltd
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 Ltd filed Critical Nippon Kokan Ltd
Publication of DE2261498A1 publication Critical patent/DE2261498A1/de
Pending legal-status Critical Current

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)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
DE19722261498 1971-12-16 1972-12-15 Resonanzmesschaltung fuer magnetische eigenschaften Pending DE2261498A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10144171A JPS5228388B2 (en, 2012) 1971-12-16 1971-12-16

Publications (1)

Publication Number Publication Date
DE2261498A1 true DE2261498A1 (de) 1973-06-28

Family

ID=14300765

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19722261498 Pending DE2261498A1 (de) 1971-12-16 1972-12-15 Resonanzmesschaltung fuer magnetische eigenschaften

Country Status (4)

Country Link
JP (1) JPS5228388B2 (en, 2012)
DE (1) DE2261498A1 (en, 2012)
FR (1) FR2163687A1 (en, 2012)
IT (1) IT974102B (en, 2012)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3238089A1 (de) * 1982-10-14 1984-04-19 Ballhaus, Heribert, Dipl.-Ing. Dr.-Ing, 7517 Waldbronn Geraet zur detektion von korrosionsschaeden an stahlseilfoerdergurten
EP0195217A1 (en) * 1985-03-14 1986-09-24 International Business Machines Corporation Magnetic reluctance sensing apparatus and method
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

Families Citing this family (3)

* 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
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
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

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3238089A1 (de) * 1982-10-14 1984-04-19 Ballhaus, Heribert, Dipl.-Ing. Dr.-Ing, 7517 Waldbronn Geraet zur detektion von korrosionsschaeden an stahlseilfoerdergurten
EP0195217A1 (en) * 1985-03-14 1986-09-24 International Business Machines Corporation Magnetic reluctance sensing apparatus and method
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

Also Published As

Publication number Publication date
FR2163687A1 (en, 2012) 1973-07-27
IT974102B (it) 1974-06-20
JPS5228388B2 (en, 2012) 1977-07-26
JPS4866884A (en, 2012) 1973-09-13

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