DE2341088A1 - Verfahren zum messen der magnetischen oder elektrischen eigenschaften eines ferromagnetischen materials - Google Patents

Verfahren zum messen der magnetischen oder elektrischen eigenschaften eines ferromagnetischen materials

Info

Publication number
DE2341088A1
DE2341088A1 DE19732341088 DE2341088A DE2341088A1 DE 2341088 A1 DE2341088 A1 DE 2341088A1 DE 19732341088 DE19732341088 DE 19732341088 DE 2341088 A DE2341088 A DE 2341088A DE 2341088 A1 DE2341088 A1 DE 2341088A1
Authority
DE
Germany
Prior art keywords
coil
measuring
changes
specimen
frequency
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
DE19732341088
Other languages
German (de)
English (en)
Inventor
Seigo Ando
Toshihiro Mori
Katsujiro Watanabe
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 DE2341088A1 publication Critical patent/DE2341088A1/de
Pending 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
    • 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
    • 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
    • G01N27/9053—Compensating for probe to workpiece spacing

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Biochemistry (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
  • Measuring Magnetic Variables (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
DE19732341088 1972-08-15 1973-08-14 Verfahren zum messen der magnetischen oder elektrischen eigenschaften eines ferromagnetischen materials Pending DE2341088A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47081153A JPS4939462A (US07122603-20061017-C00045.png) 1972-08-15 1972-08-15

Publications (1)

Publication Number Publication Date
DE2341088A1 true DE2341088A1 (de) 1974-03-07

Family

ID=13738475

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19732341088 Pending DE2341088A1 (de) 1972-08-15 1973-08-14 Verfahren zum messen der magnetischen oder elektrischen eigenschaften eines ferromagnetischen materials

Country Status (4)

Country Link
JP (1) JPS4939462A (US07122603-20061017-C00045.png)
DE (1) DE2341088A1 (US07122603-20061017-C00045.png)
FR (1) FR2196711A5 (US07122603-20061017-C00045.png)
GB (1) GB1444155A (US07122603-20061017-C00045.png)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3120522A1 (de) * 1981-05-22 1982-12-16 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 8000 München "absolutmessung der elektrischen leitfaehigkeit und der magnetischen permeabilitaet ohne eichnormale"
DE3238089A1 (de) * 1982-10-14 1984-04-19 Ballhaus, Heribert, Dipl.-Ing. Dr.-Ing, 7517 Waldbronn Geraet zur detektion von korrosionsschaeden an stahlseilfoerdergurten
US4677377A (en) * 1984-08-10 1987-06-30 Hitachi, Ltd. Position-detecting sensor for detecting position of a moving object utilizing magnetism
DE3734128A1 (de) * 1987-10-09 1989-04-27 Fraunhofer Ges Forschung Magnetometer

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2726370C2 (de) * 1977-06-10 1981-09-24 Basf Ag, 6700 Ludwigshafen Meßverfahren und Meßeinrichtung zur Bestimmung der Homogenität von Magnetdispersionen
JPS6242087U (US07122603-20061017-C00045.png) * 1986-08-21 1987-03-13
FR2677125B1 (fr) * 1991-05-30 1997-01-17 Micrel Appareil et procede de detection de defauts sur pieces metalliques.
GB201518809D0 (en) 2015-10-23 2015-12-09 The Technology Partnership Plc Temperature sensor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3120522A1 (de) * 1981-05-22 1982-12-16 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 8000 München "absolutmessung der elektrischen leitfaehigkeit und der magnetischen permeabilitaet ohne eichnormale"
DE3238089A1 (de) * 1982-10-14 1984-04-19 Ballhaus, Heribert, Dipl.-Ing. Dr.-Ing, 7517 Waldbronn Geraet zur detektion von korrosionsschaeden an stahlseilfoerdergurten
US4677377A (en) * 1984-08-10 1987-06-30 Hitachi, Ltd. Position-detecting sensor for detecting position of a moving object utilizing magnetism
DE3734128A1 (de) * 1987-10-09 1989-04-27 Fraunhofer Ges Forschung Magnetometer
US5001426A (en) * 1987-10-09 1991-03-19 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. Magnetometer for measuring the magnetic moment of a specimen

Also Published As

Publication number Publication date
GB1444155A (en) 1976-07-28
FR2196711A5 (US07122603-20061017-C00045.png) 1974-03-15
JPS4939462A (US07122603-20061017-C00045.png) 1974-04-12

Similar Documents

Publication Publication Date Title
DE10112499B4 (de) Resonatoreinrichtung, insbesondere Mikrowellenresonatoreinrichtung
DE2549627C3 (de) Schaltungsanordnung zur Messung von Abständen
DE3901997A1 (de) Elektrischer neigungssensor und ueberwachungsschaltung fuer den sensor
DE2344008A1 (de) Messgeraet
DE3741184C2 (US07122603-20061017-C00045.png)
DE2341088A1 (de) Verfahren zum messen der magnetischen oder elektrischen eigenschaften eines ferromagnetischen materials
WO1986007144A1 (fr) Agencement a capteur
DE2503401A1 (de) Differenzdruckwandler fuer einen stroemungsmesser
DE3026389C2 (de) Vorrichtung zur Abstandsmessung durch Wirbelströme mit einem rückgekoppelten Verstärker
DE2819731A1 (de) Anordnung zur kapazitiven fuellstandsmessung in einem behaelter
DE1951230A1 (de) Vorrichtung zur Messung schwacher Magnetfelder
DE1548920A1 (de) Niveauanzeigegeraet mit gekoppelten Induktivitaeten fuer fluessige Metalle
DE3323798C2 (US07122603-20061017-C00045.png)
DE2739054C2 (de) Einrichtung zur Messung einer kleinen Weglänge
DE3909851C2 (US07122603-20061017-C00045.png)
DE2420120B2 (de) Messvorrichtung
DE1959406A1 (de) Wirbelstrommessvorrichtung
DE2261498A1 (de) Resonanzmesschaltung fuer magnetische eigenschaften
DE2020749A1 (de) Messvorrichtung fuer Querschnittsflaechen
DE2558904A1 (de) Elektromagnetische induktionsanzeigevorrichtung
DE2910957C2 (US07122603-20061017-C00045.png)
DE4226813C2 (de) Verfahren und Vorrichtung zum Messen des Füllstandes einer Füllflüssigkeit in einem Füllgefäß
DE2122420A1 (de) Magnetometer
DE2329488A1 (de) Magnetischer fuehler mit einem parametrisch erregten zweiten harmonischen oszillator
DE2025734C (de) Meßumformer