FR2468133B1 - - Google Patents

Info

Publication number
FR2468133B1
FR2468133B1 FR7926116A FR7926116A FR2468133B1 FR 2468133 B1 FR2468133 B1 FR 2468133B1 FR 7926116 A FR7926116 A FR 7926116A FR 7926116 A FR7926116 A FR 7926116A FR 2468133 B1 FR2468133 B1 FR 2468133B1
Authority
FR
France
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
FR7926116A
Other versions
FR2468133A1 (fr
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7926116A priority Critical patent/FR2468133A1/fr
Priority to BR8008878A priority patent/BR8008878A/pt
Priority to JP50076080A priority patent/JPS56501382A/ja
Priority to PCT/FR1980/000057 priority patent/WO1981001198A1/fr
Publication of FR2468133A1 publication Critical patent/FR2468133A1/fr
Priority to EP80900665A priority patent/EP0038326A1/fr
Priority to NO812076A priority patent/NO812076L/no
Priority to DK275081A priority patent/DK275081A/da
Priority to ES510409A priority patent/ES510409A0/es
Application granted granted Critical
Publication of FR2468133B1 publication Critical patent/FR2468133B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • G01V3/104—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 using several coupled or uncoupled coils
    • G01V3/105—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 using several coupled or uncoupled coils forming directly coupled primary and secondary coils or loops
    • 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
FR7926116A 1979-10-22 1979-10-22 Dispositif permettant de detecter dans les solides, des liquides ou des gaz les particules metalliques incluses, de les localiser et d'en determiner la taille Granted FR2468133A1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
FR7926116A FR2468133A1 (fr) 1979-10-22 1979-10-22 Dispositif permettant de detecter dans les solides, des liquides ou des gaz les particules metalliques incluses, de les localiser et d'en determiner la taille
BR8008878A BR8008878A (pt) 1979-10-22 1980-04-11 Dispositivo que permite detectar dentro dos solidos, dos liquidos ou dos gases a presenca de particulas metalicas, localiza-las e determinar o seu tamanho
JP50076080A JPS56501382A (fr) 1979-10-22 1980-04-11
PCT/FR1980/000057 WO1981001198A1 (fr) 1979-10-22 1980-04-11 Dispositif permettant de detecter dans des solides liquides ou des gaz, les particules metalliques incluses, de les localiser et d'en determiner la taille
EP80900665A EP0038326A1 (fr) 1979-10-22 1981-05-04 Dispositif permettant de reperer dans des solides, des liquides ou des gaz, les particules metalliques incluses, de les localiser et d'en determiner la taille
NO812076A NO812076L (no) 1979-10-22 1981-06-18 Anordning for deteksjon i faststoffer, vaesker eller gasser av de inneholdte metallpartikler, deres posisjon og bestemmelse av deres stoerrelse
DK275081A DK275081A (da) 1979-10-22 1981-06-22 Apparat til detektering lokalisering og faconbestemmelse af 7etalpartikler indeholdt i faste flydende eller gasformede st3ffer
ES510409A ES510409A0 (es) 1979-10-22 1982-03-13 "dispositivo que permite detectar particulas metalicas".

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7926116A FR2468133A1 (fr) 1979-10-22 1979-10-22 Dispositif permettant de detecter dans les solides, des liquides ou des gaz les particules metalliques incluses, de les localiser et d'en determiner la taille

Publications (2)

Publication Number Publication Date
FR2468133A1 FR2468133A1 (fr) 1981-04-30
FR2468133B1 true FR2468133B1 (fr) 1984-05-25

Family

ID=9230881

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7926116A Granted FR2468133A1 (fr) 1979-10-22 1979-10-22 Dispositif permettant de detecter dans les solides, des liquides ou des gaz les particules metalliques incluses, de les localiser et d'en determiner la taille

Country Status (8)

Country Link
EP (1) EP0038326A1 (fr)
JP (1) JPS56501382A (fr)
BR (1) BR8008878A (fr)
DK (1) DK275081A (fr)
ES (1) ES510409A0 (fr)
FR (1) FR2468133A1 (fr)
NO (1) NO812076L (fr)
WO (1) WO1981001198A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2158240B (en) * 1984-04-26 1988-01-27 Standard Telephones Cables Ltd A null-balanced proximity sensor
DE3448564C2 (de) * 1984-10-05 1997-04-24 Truetzschler Gmbh & Co Kg Vorrichtung zum Ermitteln von Fremdkörpern, wie Metallteilen o. dgl. für Textilfaserballen
JPS6454281A (en) * 1987-08-25 1989-03-01 Anritsu Corp Metal detecting apparatus
GB2230611B (en) * 1989-03-30 1993-02-03 Cintex Ltd Product monitoring
FR2692365B1 (fr) * 1992-06-15 1998-04-30 Jacques Clausin Dispositif de localisation et d'evaluation des volumes d'objets ferromagnetiques.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3765007A (en) * 1969-07-11 1973-10-09 Minnesota Mining & Mfg Method and apparatus for detecting at a distance the status and identity of objects
US3686564A (en) * 1970-10-08 1972-08-22 Westinghouse Electric Corp Multiple frequency magnetic field technique for differentiating between classes of metal objects
US4326198A (en) * 1976-08-18 1982-04-20 Knogo Corporation Method and apparatus for the promotion of selected harmonic response signals in an article detection system

Also Published As

Publication number Publication date
ES8304323A3 (es) 1983-02-01
NO812076L (no) 1981-06-18
BR8008878A (pt) 1981-08-25
ES510409A0 (es) 1983-02-01
DK275081A (da) 1981-06-22
JPS56501382A (fr) 1981-09-24
WO1981001198A1 (fr) 1981-04-30
FR2468133A1 (fr) 1981-04-30
EP0038326A1 (fr) 1981-10-28

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Legal Events

Date Code Title Description
CL Concession to grant licences
ST Notification of lapse