SE7404978L - Anordning vid detektor. - Google Patents

Anordning vid detektor.

Info

Publication number
SE7404978L
SE7404978L SE7404978A SE7404978A SE7404978L SE 7404978 L SE7404978 L SE 7404978L SE 7404978 A SE7404978 A SE 7404978A SE 7404978 A SE7404978 A SE 7404978A SE 7404978 L SE7404978 L SE 7404978L
Authority
SE
Sweden
Prior art keywords
detector
period
april
periods
analyzed
Prior art date
Application number
SE7404978A
Other languages
Unknown language ( )
English (en)
Other versions
SE381107B (sv
Inventor
P Drakenberg
F Lofgren
Original Assignee
Asea Ab
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 Asea Ab filed Critical Asea Ab
Priority to SE7404978A priority Critical patent/SE381107B/sv
Priority to DE19752514135 priority patent/DE2514135A1/de
Priority to NO751202A priority patent/NO751202L/no
Priority to GB14734/75A priority patent/GB1498847A/en
Publication of SE7404978L publication Critical patent/SE7404978L/sv
Publication of SE381107B publication Critical patent/SE381107B/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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
    • G01V3/10—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Remote Sensing (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biochemistry (AREA)
  • Geology (AREA)
  • Geophysics (AREA)
  • Electromagnetism (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Control Of Conveyors (AREA)
SE7404978A 1974-04-11 1974-04-11 Anordning for begrensning av inverkan fran icke onskverda storningar i utrustningar for detektering av nervaron av specialla foremal, som ror sig med kend hastighet utefter en bestemd bana SE381107B (sv)

Priority Applications (4)

Application Number Priority Date Filing Date Title
SE7404978A SE381107B (sv) 1974-04-11 1974-04-11 Anordning for begrensning av inverkan fran icke onskverda storningar i utrustningar for detektering av nervaron av specialla foremal, som ror sig med kend hastighet utefter en bestemd bana
DE19752514135 DE2514135A1 (de) 1974-04-11 1975-03-29 Anordnung zur verminderung von stoereinfluessen in messeinrichtungen zur anzeige bestimmter gegenstaende
NO751202A NO751202L (sv) 1974-04-11 1975-04-08
GB14734/75A GB1498847A (en) 1974-04-11 1975-04-10 Metal detector method and device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7404978A SE381107B (sv) 1974-04-11 1974-04-11 Anordning for begrensning av inverkan fran icke onskverda storningar i utrustningar for detektering av nervaron av specialla foremal, som ror sig med kend hastighet utefter en bestemd bana

Publications (2)

Publication Number Publication Date
SE7404978L true SE7404978L (sv) 1975-10-13
SE381107B SE381107B (sv) 1975-11-24

Family

ID=20320817

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7404978A SE381107B (sv) 1974-04-11 1974-04-11 Anordning for begrensning av inverkan fran icke onskverda storningar i utrustningar for detektering av nervaron av specialla foremal, som ror sig med kend hastighet utefter en bestemd bana

Country Status (4)

Country Link
DE (1) DE2514135A1 (sv)
GB (1) GB1498847A (sv)
NO (1) NO751202L (sv)
SE (1) SE381107B (sv)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4193028A (en) * 1978-05-05 1980-03-11 Honeywell Inc. Eddy current instrumentation circuitry for distinguishing flaw signals from spurious noise signals
DE3436498C2 (de) * 1984-10-05 1994-08-25 Truetzschler Gmbh & Co Kg Vorrichtung zum Ermitteln von Fremdkörpern, wie Metallteilen, in Textilfaserballen

Also Published As

Publication number Publication date
NO751202L (sv) 1975-10-14
GB1498847A (en) 1978-01-25
DE2514135A1 (de) 1975-10-23
SE381107B (sv) 1975-11-24

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