DK233975A - Apparat til brug i forbindelse med en elektronisk detektor - Google Patents

Apparat til brug i forbindelse med en elektronisk detektor

Info

Publication number
DK233975A
DK233975A DK233975A DK233975A DK233975A DK 233975 A DK233975 A DK 233975A DK 233975 A DK233975 A DK 233975A DK 233975 A DK233975 A DK 233975A DK 233975 A DK233975 A DK 233975A
Authority
DK
Denmark
Prior art keywords
appliance
connection
electronic detector
detector
electronic
Prior art date
Application number
DK233975A
Other languages
Danish (da)
English (en)
Inventor
R S Enabnit
Original Assignee
Goodyear Tire & Rubber
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 Goodyear Tire & Rubber filed Critical Goodyear Tire & Rubber
Publication of DK233975A publication Critical patent/DK233975A/da

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/08Electric 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
    • G01V3/10Electric 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
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/72Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
    • G01N27/82Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
    • G01N27/90Investigating 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
    • G01N27/9046Investigating 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
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/72Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
    • G01N27/82Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
    • G01N27/90Investigating 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
    • G01N27/9046Investigating 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
    • G01N27/906Compensating for velocity

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Remote Sensing (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
DK233975A 1974-05-28 1975-05-27 Apparat til brug i forbindelse med en elektronisk detektor DK233975A (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/473,643 US3949293A (en) 1974-05-28 1974-05-28 Apparatus and method for detecting a moving metal mass including means to discriminate signals having a particular period

Publications (1)

Publication Number Publication Date
DK233975A true DK233975A (da) 1975-11-29

Family

ID=23880398

Family Applications (1)

Application Number Title Priority Date Filing Date
DK233975A DK233975A (da) 1974-05-28 1975-05-27 Apparat til brug i forbindelse med en elektronisk detektor

Country Status (19)

Country Link
US (1) US3949293A (ja)
JP (1) JPS517954A (ja)
AR (1) AR204664A1 (ja)
AU (1) AU498275B2 (ja)
BE (1) BE829255A (ja)
BR (1) BR7503216A (ja)
CA (1) CA1060970A (ja)
DE (1) DE2523677A1 (ja)
DK (1) DK233975A (ja)
ES (1) ES437399A1 (ja)
FR (1) FR2273288A1 (ja)
GB (1) GB1505186A (ja)
IT (1) IT1038533B (ja)
LU (1) LU72552A1 (ja)
NL (1) NL7506305A (ja)
NO (1) NO751865L (ja)
SE (1) SE401954B (ja)
TR (1) TR19739A (ja)
ZA (1) ZA752757B (ja)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2412081A1 (fr) * 1977-12-19 1979-07-13 Fadico Dispositif de detection de la presence d'une piece mecanique, muni d'organes assurant la securite du fonctionnement vis-a-vis de defauts d'isolement dans le circuit du capteur
US4193028A (en) * 1978-05-05 1980-03-11 Honeywell Inc. Eddy current instrumentation circuitry for distinguishing flaw signals from spurious noise signals
GB2136580B (en) * 1983-03-16 1987-11-18 Thyssen Industrie Method and apparatus for determining the distance from a conductor
JPH0518715Y2 (ja) * 1987-12-15 1993-05-18

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2577827A (en) * 1945-10-30 1951-12-11 Charles B Tompkins Pulse recognition device
US2648766A (en) * 1950-04-19 1953-08-11 Rca Corp Pulse width discriminator
US3065412A (en) * 1958-12-23 1962-11-20 Union Carbide Corp Metal detector
US3523253A (en) * 1966-04-15 1970-08-04 Electronic Memories & Magnetic Coupling network
US3609563A (en) * 1968-11-12 1971-09-28 Coditron Corp Frequency detector
US3706027A (en) * 1971-07-13 1972-12-12 Karl R Grice Jr Materials counting system utilizing permanent magnets and their associated fields

Also Published As

Publication number Publication date
AU8077175A (en) 1976-11-04
BE829255A (fr) 1975-09-15
NO751865L (ja) 1975-12-01
BR7503216A (pt) 1976-04-20
GB1505186A (en) 1978-03-30
NL7506305A (nl) 1975-12-02
FR2273288A1 (ja) 1975-12-26
TR19739A (tr) 1979-10-25
SE401954B (sv) 1978-06-05
ES437399A1 (es) 1977-01-16
CA1060970A (en) 1979-08-21
US3949293A (en) 1976-04-06
AU498275B2 (en) 1979-03-01
SE7505919L (sv) 1975-12-01
ZA752757B (en) 1976-04-28
JPS517954A (ja) 1976-01-22
DE2523677A1 (de) 1975-12-11
IT1038533B (it) 1979-11-30
AR204664A1 (es) 1976-02-20
LU72552A1 (ja) 1975-10-08

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