JPS5829468B2 - カンノウインピ−ダンスソシ オ シヨウスル ソクテイソウチ - Google Patents

カンノウインピ−ダンスソシ オ シヨウスル ソクテイソウチ

Info

Publication number
JPS5829468B2
JPS5829468B2 JP47087435A JP8743572A JPS5829468B2 JP S5829468 B2 JPS5829468 B2 JP S5829468B2 JP 47087435 A JP47087435 A JP 47087435A JP 8743572 A JP8743572 A JP 8743572A JP S5829468 B2 JPS5829468 B2 JP S5829468B2
Authority
JP
Japan
Prior art keywords
impedance
sensitive
amplifier
impedance element
negative
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
JP47087435A
Other languages
English (en)
Japanese (ja)
Other versions
JPS4948360A (enExample
Inventor
年弘 森
静吾 安藤
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
Priority to JP47087435A priority Critical patent/JPS5829468B2/ja
Priority to US392763A priority patent/US3867689A/en
Priority to FR7331374A priority patent/FR2200967A5/fr
Priority to DE2344008A priority patent/DE2344008C3/de
Publication of JPS4948360A publication Critical patent/JPS4948360A/ja
Publication of JPS5829468B2 publication Critical patent/JPS5829468B2/ja
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
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
JP47087435A 1972-08-31 1972-08-31 カンノウインピ−ダンスソシ オ シヨウスル ソクテイソウチ Expired JPS5829468B2 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP47087435A JPS5829468B2 (ja) 1972-08-31 1972-08-31 カンノウインピ−ダンスソシ オ シヨウスル ソクテイソウチ
US392763A US3867689A (en) 1972-08-31 1973-08-29 Measuring apparatus utilizing variable impedance elements
FR7331374A FR2200967A5 (enExample) 1972-08-31 1973-08-30
DE2344008A DE2344008C3 (de) 1972-08-31 1973-08-31 Meßgerät zum Messen von Veränderungen der physikalischen Eigenschaften eines magnetisch oder elektrisch leitenden Untersuchungsobjekts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47087435A JPS5829468B2 (ja) 1972-08-31 1972-08-31 カンノウインピ−ダンスソシ オ シヨウスル ソクテイソウチ

Publications (2)

Publication Number Publication Date
JPS4948360A JPS4948360A (enExample) 1974-05-10
JPS5829468B2 true JPS5829468B2 (ja) 1983-06-22

Family

ID=13914777

Family Applications (1)

Application Number Title Priority Date Filing Date
JP47087435A Expired JPS5829468B2 (ja) 1972-08-31 1972-08-31 カンノウインピ−ダンスソシ オ シヨウスル ソクテイソウチ

Country Status (4)

Country Link
US (1) US3867689A (enExample)
JP (1) JPS5829468B2 (enExample)
DE (1) DE2344008C3 (enExample)
FR (1) FR2200967A5 (enExample)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5080156A (enExample) * 1973-11-14 1975-06-30
JPS512479A (ja) * 1974-06-25 1976-01-10 Mitsubishi Electric Corp Kinzokuondokenshutsukioyobisono oyokiki
JPS5177378A (en) * 1974-12-27 1976-07-05 Nippon Kokan Kk Denjudoshikikenshutsusochi
US4354156A (en) * 1977-10-12 1982-10-12 E. I. Du Pont De Nemours & Company Device for detecting ferromagnetic materials
JPS54158644U (enExample) * 1978-04-27 1979-11-06
FR2463417A1 (fr) * 1979-08-09 1981-02-20 Intercontrole Sa Dispositif pour la mesure d'une impedance
JPS57101799A (en) * 1980-12-17 1982-06-24 Genshi Nenryo Kogyo Nondestructive testing method of nuclear fuel insertion
JPS57189051A (en) * 1981-05-18 1982-11-20 Nikko Denshi Kogyo Kk Measuring device for concentration of waste liquid and waste sludge
US4629983A (en) * 1984-10-03 1986-12-16 Westinghouse Electric Corp. Digital rod position detector system
DE3437950A1 (de) * 1984-10-17 1985-04-18 Arno H. Dipl.-Ing. 7141 Beilstein Taruttis Einrichtung zum bestimmen des feuchtigkeitsgehalts in babyhoeschenwindeln waehrend des tragens
JPS61184403A (ja) * 1985-02-12 1986-08-18 Sotsukishiya:Kk 磁気スケ−ル用磁気ヘツド装置
US4603306A (en) * 1985-04-25 1986-07-29 The United States Of America As Represented By The Administrator, National Aeronautics And Space Administration Temperature sensitive oscillator
US4845429A (en) * 1986-03-12 1989-07-04 Eldec Corporation Inductance divider sensor
WO2004094971A1 (en) * 2003-03-27 2004-11-04 Dresser, Inc. Temperature measurement device
DE102011088360B4 (de) * 2011-12-13 2022-02-17 Leibniz-Institut Für Festkörper- Und Werkstoffforschung Dresden E.V. Resonanzdetektor
CN104820134A (zh) * 2015-04-29 2015-08-05 业成光电（深圳）有限公司 线路检测装置及方法及其所应用的线路

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3225298A (en) * 1962-07-30 1965-12-21 Hewlett Packard Co Impedance to voltage converter including a positive feedback path for supplying impedance testing current
US3461400A (en) * 1967-08-30 1969-08-12 Systron Donner Corp Position detecting apparatus and method
US3489955A (en) * 1967-09-13 1970-01-13 Honeywell Inc Amplifier apparatus
US3568044A (en) * 1968-09-12 1971-03-02 Bell & Howell Co Linearizing circuit for high output transducers
FR2050683A5 (enExample) * 1969-06-20 1971-04-02 Rhone Poulenc Sa
US3613454A (en) * 1970-03-16 1971-10-19 Nasa Platinum resistance thermometer circuit

Also Published As

Publication number Publication date
JPS4948360A (enExample) 1974-05-10
DE2344008B2 (de) 1975-02-20
DE2344008C3 (de) 1975-10-02
FR2200967A5 (enExample) 1974-04-19
US3867689A (en) 1975-02-18
DE2344008A1 (de) 1974-03-21

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