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
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.
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 (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5793199A (en) * | 1995-11-10 | 1998-08-11 | New Cosmos Electric Co., Ltd. | Method and apparatus for determining magnetic powder concentration by using the electromagnetic induction method |
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 |
US6707540B1 (en) | 1999-12-23 | 2004-03-16 | Kla-Tencor Corporation | In-situ metalization monitoring using eddy current and optical measurements |
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 |
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 |
EP1481257B1 (en) * | 2002-03-04 | 2010-07-14 | Sicpa Holding S.A. | Measurement probe and authentication device comprising the same |
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)
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 |
-
1991
- 1991-04-26 CH CH01262/91A patent/CH689466A5/de not_active IP Right Cessation
- 1991-12-07 DK DK91121010T patent/DK0511434T3/da active
- 1991-12-07 ES ES91121010T patent/ES2137155T3/es not_active Expired - Lifetime
- 1991-12-07 EP EP91121010A patent/EP0511434B1/de not_active Expired - Lifetime
- 1991-12-07 DE DE59109165T patent/DE59109165D1/de not_active Expired - Fee Related
-
1992
- 1992-03-16 US US07/851,443 patent/US5278500A/en not_active Expired - Lifetime
- 1992-04-22 JP JP10149392A patent/JP3161623B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US5278500A (en) | 1994-01-11 |
EP0511434A1 (de) | 1992-11-04 |
CH689466A5 (de) | 1999-04-30 |
DK0511434T3 (da) | 1999-12-27 |
JP3161623B2 (ja) | 2001-04-25 |
DE59109165D1 (de) | 1999-12-02 |
EP0511434B1 (de) | 1999-10-27 |
JPH05264699A (ja) | 1993-10-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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