ES2128263A1 - Dispisitivos magnetoresistivos para la deteccion de presencia y posicion de piezas metalicas. - Google Patents

Dispisitivos magnetoresistivos para la deteccion de presencia y posicion de piezas metalicas.

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Publication number
ES2128263A1
ES2128263A1 ES09701153A ES9701153A ES2128263A1 ES 2128263 A1 ES2128263 A1 ES 2128263A1 ES 09701153 A ES09701153 A ES 09701153A ES 9701153 A ES9701153 A ES 9701153A ES 2128263 A1 ES2128263 A1 ES 2128263A1
Authority
ES
Spain
Prior art keywords
magnetoresistive
detecting
metallic components
devices
screen
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.)
Granted
Application number
ES09701153A
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English (en)
Other versions
ES2128263B1 (es
Inventor
Grino Josep Fontcuberta
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.)
Consejo Superior de Investigaciones Cientificas CSIC
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Consejo Superior de Investigaciones Cientificas CSIC
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Application filed by Consejo Superior de Investigaciones Cientificas CSIC filed Critical Consejo Superior de Investigaciones Cientificas CSIC
Priority to ES9701153A priority Critical patent/ES2128263B1/es
Publication of ES2128263A1 publication Critical patent/ES2128263A1/es
Application granted granted Critical
Publication of ES2128263B1 publication Critical patent/ES2128263B1/es
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Hall/Mr Elements (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Measuring Magnetic Variables (AREA)
  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)

Abstract

Dispositivos magnetoresistivos para la detección de presencia y posición de piezas metálicas que se componen de un circuito magnético que utiliza como elemento sensor, un material magnetoresistivo basado en óxidos de manganeso, de la familia de las perovskitas de fórmula general L{sub,1-x A{sub,x MnO{sub,3-y , donde L es un lantánido trivalente (La, Nd, Sm,...) y A es un catión alcalino térreo (Ca, Sr, Ba, Pb.....), preparado mediante la técnica de serigrafía, en forma de capa gruesa. El circuito magnético está formado por un puente de Wheatstone con una o dos ramas magnetoresistivas de resistencias MR1 y MR2, montadas sobre un imán permanente (Figura 1) y en los que el material sensible es La{sub,2/3 Sr{sub,1/3 MnO{sub,3 preparado mediante la técnica de serigrafía, en forma de capa gruesa de unos 20{u m de espesor. Estos dispositivos tienen una aplicación concreta para su uso como cuentarrevoluciones.
ES9701153A 1997-05-28 1997-05-28 Dispositivos magnetoresistivos para la deteccion de presencia y posicion de piezas metalicas. Expired - Fee Related ES2128263B1 (es)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES9701153A ES2128263B1 (es) 1997-05-28 1997-05-28 Dispositivos magnetoresistivos para la deteccion de presencia y posicion de piezas metalicas.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES9701153A ES2128263B1 (es) 1997-05-28 1997-05-28 Dispositivos magnetoresistivos para la deteccion de presencia y posicion de piezas metalicas.

Publications (2)

Publication Number Publication Date
ES2128263A1 true ES2128263A1 (es) 1999-05-01
ES2128263B1 ES2128263B1 (es) 1999-12-16

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Family Applications (1)

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ES9701153A Expired - Fee Related ES2128263B1 (es) 1997-05-28 1997-05-28 Dispositivos magnetoresistivos para la deteccion de presencia y posicion de piezas metalicas.

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ES (1) ES2128263B1 (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2276615A1 (es) * 2005-10-28 2007-06-16 Universidad Complutense De Madrid Dispositivo para la medida de campos magneticos continuos basado en oxidos mixtos de manganeso con estructura tipo perovskita.

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4482006A (en) * 1980-09-02 1984-11-13 Anderson Cary R Thermal energy meter
EP0654835A1 (en) * 1993-11-18 1995-05-24 AT&T Corp. Article comprising magnetoresistive material
EP0680008A1 (en) * 1994-04-28 1995-11-02 AT&T Corp. Position sensing systems including magnetoresistive elements
US5477143A (en) * 1994-01-11 1995-12-19 Honeywell Inc. Sensor with magnetoresistors disposed on a plane which is parallel to and displaced from the magnetic axis of a permanent magnet
WO1996017970A2 (en) * 1994-11-28 1996-06-13 Advanced Technology Materials, Inc. Chemical vapor deposition method of growing oxide films with giant magnetoresistance
DE4446313A1 (de) * 1994-12-23 1996-06-27 Teves Gmbh Alfred Aktiver Sensor mit einem magnetfeldabhängigen Meßelement
US5596272A (en) * 1995-09-21 1997-01-21 Honeywell Inc. Magnetic sensor with a beveled permanent magnet
EP0763748A2 (en) * 1995-09-14 1997-03-19 Lucent Technologies Inc. Magnetoresistive element having large low field magnetoresistance

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4482006A (en) * 1980-09-02 1984-11-13 Anderson Cary R Thermal energy meter
EP0654835A1 (en) * 1993-11-18 1995-05-24 AT&T Corp. Article comprising magnetoresistive material
US5477143A (en) * 1994-01-11 1995-12-19 Honeywell Inc. Sensor with magnetoresistors disposed on a plane which is parallel to and displaced from the magnetic axis of a permanent magnet
EP0680008A1 (en) * 1994-04-28 1995-11-02 AT&T Corp. Position sensing systems including magnetoresistive elements
WO1996017970A2 (en) * 1994-11-28 1996-06-13 Advanced Technology Materials, Inc. Chemical vapor deposition method of growing oxide films with giant magnetoresistance
DE4446313A1 (de) * 1994-12-23 1996-06-27 Teves Gmbh Alfred Aktiver Sensor mit einem magnetfeldabhängigen Meßelement
EP0763748A2 (en) * 1995-09-14 1997-03-19 Lucent Technologies Inc. Magnetoresistive element having large low field magnetoresistance
US5596272A (en) * 1995-09-21 1997-01-21 Honeywell Inc. Magnetic sensor with a beveled permanent magnet

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2276615A1 (es) * 2005-10-28 2007-06-16 Universidad Complutense De Madrid Dispositivo para la medida de campos magneticos continuos basado en oxidos mixtos de manganeso con estructura tipo perovskita.
WO2007051882A3 (es) * 2005-10-28 2007-06-28 Univ Madrid Complutense Dispositivo para la medida de campos magnéticos continuos basado en óxidos mixtos de manganeso con estructura tipo perovskita
ES2276615B1 (es) * 2005-10-28 2008-04-16 Universidad Complutense De Madrid Dispositivo para la medida de campos magneticos continuos basado en oxidos mixtos de manganeso con estructura tipo perovskita.

Also Published As

Publication number Publication date
ES2128263B1 (es) 1999-12-16

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