SE7813344L - Met- och/eller kompensationsanordning - Google Patents

Met- och/eller kompensationsanordning

Info

Publication number
SE7813344L
SE7813344L SE7813344A SE7813344A SE7813344L SE 7813344 L SE7813344 L SE 7813344L SE 7813344 A SE7813344 A SE 7813344A SE 7813344 A SE7813344 A SE 7813344A SE 7813344 L SE7813344 L SE 7813344L
Authority
SE
Sweden
Prior art keywords
compensation
frequencies
transmitter
omega
frequency components
Prior art date
Application number
SE7813344A
Other languages
Unknown language ( )
English (en)
Inventor
Bengt Hjalmar Tornblom
Original Assignee
Bengt Hjalmar Tornblom
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 Bengt Hjalmar Tornblom filed Critical Bengt Hjalmar Tornblom
Priority to SE7813344A priority Critical patent/SE7813344L/sv
Priority to DE19792952129 priority patent/DE2952129A1/de
Priority to GB7944375A priority patent/GB2041535A/en
Publication of SE7813344L publication Critical patent/SE7813344L/sv

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
    • G01N27/9053—Compensating for probe to workpiece spacing
    • 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
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/023—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance where the material is placed in the field of a coil

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 Magnetic Means (AREA)
SE7813344A 1978-12-28 1978-12-28 Met- och/eller kompensationsanordning SE7813344L (sv)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE7813344A SE7813344L (sv) 1978-12-28 1978-12-28 Met- och/eller kompensationsanordning
DE19792952129 DE2952129A1 (de) 1978-12-28 1979-12-22 Vorrichtung zum testen und/oder messen elektrisch leitfaehiger, fester, fluessiger, oder pulverfoermiger materialien auf materialfehler, materialveraenderungen oder aenderung ihrer elektrischen eigenschaften
GB7944375A GB2041535A (en) 1978-12-28 1979-12-24 A measuring and/or testing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7813344A SE7813344L (sv) 1978-12-28 1978-12-28 Met- och/eller kompensationsanordning

Publications (1)

Publication Number Publication Date
SE7813344L true SE7813344L (sv) 1980-06-29

Family

ID=20336705

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7813344A SE7813344L (sv) 1978-12-28 1978-12-28 Met- och/eller kompensationsanordning

Country Status (3)

Country Link
DE (1) DE2952129A1 (sv)
GB (1) GB2041535A (sv)
SE (1) SE7813344L (sv)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4318617A (en) * 1979-12-14 1982-03-09 Keuffel & Esser Company DC Shift error correction for electro-optical measuring system
DE3129321C2 (de) * 1981-07-24 1986-11-06 Rižskij politechničeskij institut, Riga Verfahren und Einrichtung zur zerstörungsfreien Kontrolle von Punktschweißverbindungen
SE436228B (sv) * 1982-11-24 1984-11-19 Bengt Hjalmar Tornblom Anordning for kontroll av objekt med avseende pa forendringar
SE456043B (sv) * 1984-02-10 1988-08-29 Bengt Hjalmar Tornblom Sett och anordning for provning och/eller metning av elektriskt ledande provobjekt med avseende pa forendringar
GB2165650B (en) * 1984-04-09 1988-04-27 Dennis Amerena Parker Method and apparatus for the quantative and qualitative measurement of small metal particles
DE3517114A1 (de) * 1985-05-11 1986-11-13 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 8000 München Wirbelstromverfahren zur untersuchung der spannungsrisskorrosion in austenitischen bauteilen sowie vorrichtung zur durchfuehrung des verfahrens
GB8614746D0 (en) * 1986-06-17 1986-07-23 Nicholas M J Sensing device
SE456863B (sv) * 1986-07-15 1988-11-07 Toernbloms Kvalitetskontroll Maet- och/eller kontrollanordning utnyttjande virvelstroemsteknik med undertryckning av godartade ytdeformationer
DE4322987C2 (de) * 1993-07-09 1997-04-10 Erwin Halstrup Spule zur Erzeugung eines magnetischen Wechselfeldes
FR2712975B1 (fr) * 1993-11-23 1996-08-02 Framatome Sa Procédé de contrôle non destructif d'un tube mince par courants de Foucault et capteur à courants de Foucault.

Also Published As

Publication number Publication date
DE2952129A1 (de) 1980-07-10
GB2041535A (en) 1980-09-10

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