ES2137155T3 - Dispositivo para la medicion de un campo magnetico de flujo debil. - Google Patents

Dispositivo para la medicion de un campo magnetico de flujo debil.

Info

Publication number
ES2137155T3
ES2137155T3 ES91121010T ES91121010T ES2137155T3 ES 2137155 T3 ES2137155 T3 ES 2137155T3 ES 91121010 T ES91121010 T ES 91121010T ES 91121010 T ES91121010 T ES 91121010T ES 2137155 T3 ES2137155 T3 ES 2137155T3
Authority
ES
Spain
Prior art keywords
sensor
magnetic field
nucleus
weak flow
measuring
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.)
Expired - Lifetime
Application number
ES91121010T
Other languages
English (en)
Inventor
Thomas Seitz
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.)
Mars Inc
Original Assignee
Mars Inc
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 Mars Inc filed Critical Mars Inc
Application granted granted Critical
Publication of ES2137155T3 publication Critical patent/ES2137155T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/04—Measuring direction or magnitude of magnetic fields or magnetic flux using the flux-gate principle
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
    • G07D7/04—Testing magnetic properties of the materials thereof, e.g. by detection of magnetic imprint

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Measuring Magnetic Variables (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)

Abstract

EL CAMPO MAGNETICO DE FLUJO DEBIL ES PREFERENTEMENTE AQUEL DE UNA TINTA MAGNETICA MAGNETIZADA DE UN BILLETE DE BANCO (11), QUE SE ENCUENTRA EN UN ENTREHIERRO (2). LA DISPOSICION COMPRENDE AL MENOS UN SENSOR (1), QUE TRABAJA SEGUN EL PRINCIPIO DE SATURACION DEL NUCLEO, EL CUAL ESTA FORMADO POR UNA BOBINA DE EXCITACION (4), COMPUESTA RESPECTIVAMENTE DE UNA UNICA CAPA, Y UNA BOBINA DE MEDIDA (5), ASI COMO DE UN NUCLEO FERROMAGNETICO (3) FORMADO COMO CAPA DE PELICULA. LAS BOBINAS (4,5) Y EL NUCLEO FERROMAGNETICO (3) ESTAN AISLADOS MEDIANTE CAPAS AISLANTES (13, 14) CON CAPAS SEPARADAS Y PARALELAS, Y DISPUESTAS EN UNA SUPERFICIE EXTERIOR DE UN MATERIAL PORTANTE (12). EL SENSOR (1) ES UN SENSOR LLANO Y PLANO, EL CUAL SE FABRICA A UN COSTE MUY FAVORABLE Y PRECISO, DE MODO QUE ES POSIBLE LA FABRICACION ECONOMICA DE SENSORES PRACTICAMENTE IDENTICOS.
ES91121010T 1991-04-26 1991-12-07 Dispositivo para la medicion de un campo magnetico de flujo debil. Expired - Lifetime ES2137155T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH01262/91A CH689466A5 (de) 1991-04-26 1991-04-26 Anordnung zum Messen eines Magnetfeldes.

Publications (1)

Publication Number Publication Date
ES2137155T3 true ES2137155T3 (es) 1999-12-16

Family

ID=4206285

Family Applications (1)

Application Number Title Priority Date Filing Date
ES91121010T Expired - Lifetime ES2137155T3 (es) 1991-04-26 1991-12-07 Dispositivo para la medicion de un campo magnetico de flujo debil.

Country Status (7)

Country Link
US (1) US5278500A (es)
EP (1) EP0511434B1 (es)
JP (1) JP3161623B2 (es)
CH (1) CH689466A5 (es)
DE (1) DE59109165D1 (es)
DK (1) DK0511434T3 (es)
ES (1) ES2137155T3 (es)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69625777T2 (de) * 1995-11-10 2003-10-02 New Cosmos Electric Co., Ltd. Verfahren zur Bestimmung der Konzentration eines magnetischen Pulvers und Vorrichtung dazu
US5712564A (en) * 1995-12-29 1998-01-27 Unisys Corporation Magnetic ink recorder calibration apparatus and method
GB2315352B (en) * 1996-07-12 2000-10-11 Ronald Clifford Davies Bank-note tester
US6614211B1 (en) 1999-04-01 2003-09-02 Santronics, Inc. Non-contact detector for sensing a periodically varying magnetic field
ES2164525B2 (es) * 1999-04-20 2002-10-16 Univ Madrid Politecnica Procedimiento de fabricacion de un sensor magnetico hibrido piezoelectrico-ferromagnetico.
US6605939B1 (en) * 1999-09-08 2003-08-12 Siemens Vdo Automotive Corporation Inductive magnetic saturation displacement sensor
US6433541B1 (en) 1999-12-23 2002-08-13 Kla-Tencor Corporation In-situ metalization monitoring using eddy current measurements during the process for removing the film
US6707540B1 (en) 1999-12-23 2004-03-16 Kla-Tencor Corporation In-situ metalization monitoring using eddy current and optical measurements
JP3523608B2 (ja) * 2001-04-03 2004-04-26 本田技研工業株式会社 磁束検出装置および方法
US6960911B2 (en) * 2002-01-29 2005-11-01 Kabushiki Kaisha Toshiba Strain sensor
JP2005519287A (ja) * 2002-03-04 2005-06-30 シクパ・ホールディング・ソシエテ・アノニム 測定プローブ及びこれを有する証明装置
RU2292055C2 (ru) * 2002-03-04 2007-01-20 Сикпа Холдинг С.А. Измерительный зонд и содержащее его устройство аутентификации
CA2414724C (en) * 2002-12-18 2011-02-22 Cashcode Company Inc. Induction sensor using printed circuit
DE10326698A1 (de) * 2003-06-13 2004-12-30 Giesecke & Devrient Gmbh Prüfung elektrischer Leitfähigkeit und/oder magnetischer Eigenschaften von Sicherheitselementen in Sicherheitsdokumenten
JP2005181173A (ja) * 2003-12-22 2005-07-07 Toshiba Corp 磁性体量検出装置
US7068030B2 (en) * 2004-04-28 2006-06-27 Imation Corp. Magnetic field strength detector
JP4483497B2 (ja) * 2004-09-16 2010-06-16 富士ゼロックス株式会社 磁性体検知装置
DE102014219009A1 (de) * 2014-09-22 2016-03-24 Continental Teves Ag & Co. Ohg Positionssensor

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3040247A (en) * 1958-01-21 1962-06-19 Roland L Van Allen Magnetic field detector
US3643155A (en) * 1966-07-25 1972-02-15 Micro Magnetic Ind Inc Flux gate magnetometer including backing plate
US3833872A (en) * 1972-06-13 1974-09-03 I Marcus Microminiature monolithic ferroceramic transformer
US3848210A (en) * 1972-12-11 1974-11-12 Vanguard Electronics Miniature inductor
DE3637801A1 (de) * 1986-11-06 1988-05-19 Bosch Gmbh Robert Vorrichtung zur messung eines zeitlich konstanten oder sich aendernden magnetfeldes
US4764725A (en) * 1986-09-12 1988-08-16 Brandt, Inc. Apparatus for detecting counterfeit currency using two coils to produce a saturating magnetic field
DE3738455A1 (de) * 1986-11-25 1988-06-01 Landis & Gyr Ag Anordnung zum messen eines flussarmen magnetfeldes
GB2201786B (en) * 1987-03-06 1990-11-28 Gen Electric Plc Magnetometers

Also Published As

Publication number Publication date
JP3161623B2 (ja) 2001-04-25
CH689466A5 (de) 1999-04-30
DE59109165D1 (de) 1999-12-02
EP0511434A1 (de) 1992-11-04
US5278500A (en) 1994-01-11
EP0511434B1 (de) 1999-10-27
JPH05264699A (ja) 1993-10-12
DK0511434T3 (da) 1999-12-27

Similar Documents

Publication Publication Date Title
ES2137155T3 (es) Dispositivo para la medicion de un campo magnetico de flujo debil.
DE60114397D1 (de) Verfahren und vorrichtung zur korrektur von abbe fehlern
ATE553305T1 (de) Lastanzeigeglied mit identifizierungsmarkierung
AR062673A1 (es) Gradiometro de gravedad
ES8802344A1 (es) Metodo para formar un calibrador de la deformacion.
ES2086994T3 (es) Sensor magneto-resistente con capas de medicion recortadas.
ATE398765T1 (de) Positionssensor
FI882187A0 (fi) Anordning foer bestaemning av styrkan och riktningen av ett magnetfaelt, i synnerhet jordmagnetiskt faelt.
CN106802399B (zh) 一种磁致伸缩系数的测量系统及方法
MY134681A (en) Method and system to measure characteristics of a film disposed on a substrate
SE8100569L (sv) Mekanisk-elektrisk tryckomvandlare
NO890624L (no) Innretning for maaling av tykkelsen av transporterte pengesedler e.l.
ITMI992739A1 (it) Dispositivo di misura di corrente per interruttori di potenza di bassa tensione
JPS6225851U (es)
DE69916017D1 (de) Magnetoresistiver sensor zur messung der relativen lageveränderung zwischen zwei bauteilen
US6481278B1 (en) Hall-effect fine resolution liquid level indicator
US20080290864A1 (en) Magnetic Field Position Sensor and Method of Use
ATE463700T1 (de) Kryostat mit stabilisiertem aussengefäss
ATE357645T1 (de) Bohrloch-streckenmesssonde
JPH08152301A (ja) ピストン位置検出装置
NO20013509L (no) Trykksensor
FI20035137A7 (fi) Menetelmä ja laitteisto paperikoneen perälaatikon virtauspinnan tasomaisuuden mittauksessa
US1220358A (en) Leveling-rod.
ITMI991544A1 (it) Sensore per angoli di rotazione
SU218497A1 (ru) Датчик дл измерени усили вызываемого весом,давлением или другим механическим воздействием

Legal Events

Date Code Title Description
FG2A Definitive protection

Ref document number: 511434

Country of ref document: ES