WO2008145478A3 - Composant inductif accordable et son utilisation - Google Patents

Composant inductif accordable et son utilisation Download PDF

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Publication number
WO2008145478A3
WO2008145478A3 PCT/EP2008/055445 EP2008055445W WO2008145478A3 WO 2008145478 A3 WO2008145478 A3 WO 2008145478A3 EP 2008055445 W EP2008055445 W EP 2008055445W WO 2008145478 A3 WO2008145478 A3 WO 2008145478A3
Authority
WO
WIPO (PCT)
Prior art keywords
component
ferrite layer
layer
permeability
coil
Prior art date
Application number
PCT/EP2008/055445
Other languages
German (de)
English (en)
Other versions
WO2008145478A2 (fr
Inventor
Dieter Goetsch
Richard Matz
Original Assignee
Siemens Ag
Dieter Goetsch
Richard Matz
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 Siemens Ag, Dieter Goetsch, Richard Matz filed Critical Siemens Ag
Publication of WO2008145478A2 publication Critical patent/WO2008145478A2/fr
Publication of WO2008145478A3 publication Critical patent/WO2008145478A3/fr

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F21/00Variable inductances or transformers of the signal type
    • H01F21/02Variable inductances or transformers of the signal type continuously variable, e.g. variometers
    • H01F21/08Variable inductances or transformers of the signal type continuously variable, e.g. variometers by varying the permeability of the core, e.g. by varying magnetic bias
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/0041Transmitting or indicating the displacement of flexible diaphragms
    • G01L9/007Transmitting or indicating the displacement of flexible diaphragms using variations in inductance
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F10/00Thin magnetic films, e.g. of one-domain structure
    • H01F10/26Thin magnetic films, e.g. of one-domain structure characterised by the substrate or intermediate layers
    • H01F10/265Magnetic multilayers non exchange-coupled
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F10/00Thin magnetic films, e.g. of one-domain structure
    • H01F10/08Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers
    • H01F10/10Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition
    • H01F10/18Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition being compounds
    • H01F10/20Ferrites
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F21/00Variable inductances or transformers of the signal type
    • H01F21/02Variable inductances or transformers of the signal type continuously variable, e.g. variometers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)
  • Coils Or Transformers For Communication (AREA)

Abstract

L'invention concerne un composant inductif accordable, comprenant au moins un corps multicouches céramique, comportant au moins une couche de ferrite en matériau ferritique et au moins une bobine intégrée au volume du corps multicouches. La perméabilité de la couche ferritique dépend d'une tension mécanique, qui agit sur la couche ferritique, intègre la bobine dans le volume du corps multicouches, de sorte qu'une inductivité de la bobine dépende de la perméabilité de la couche de ferrite. L'invention concerne également un organe permettant la transmission de la tension mécanique à la couche de ferrite, de manière à ce que la perméabilité de la couche de ferrite puisse être réglée. L'organe de transmission de la tension mécanique est par exemple un élément piézo intégré. Le composant inductif accordable peut être utilisé dans des circuits filtrants ou oscillateurs. Le composant peut servir de détecteur de pression lors de sa mise en oeuvre.
PCT/EP2008/055445 2007-05-29 2008-05-05 Composant inductif accordable et son utilisation WO2008145478A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200710024908 DE102007024908A1 (de) 2007-05-29 2007-05-29 Abstimmbares induktives Bauelement und Verwendung des Bauelements
DE102007024908.1 2007-05-29

Publications (2)

Publication Number Publication Date
WO2008145478A2 WO2008145478A2 (fr) 2008-12-04
WO2008145478A3 true WO2008145478A3 (fr) 2009-01-22

Family

ID=39917246

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/055445 WO2008145478A2 (fr) 2007-05-29 2008-05-05 Composant inductif accordable et son utilisation

Country Status (2)

Country Link
DE (1) DE102007024908A1 (fr)
WO (1) WO2008145478A2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010030156A1 (de) * 2010-06-16 2011-12-22 Endress + Hauser Gmbh + Co. Kg Keramischer Drucksensor
DE102011113177A1 (de) * 2011-09-09 2013-03-14 Diehl Ako Stiftung & Co. Kg Veränderbare Induktivität
DE102012216101B4 (de) * 2012-09-12 2016-03-24 Festo Ag & Co. Kg Verfahren zum Herstellen einer in einem Substrat integrierten Spule, Verfahren zur Herstellung einer mehrschichtigen Leiterplatte und elektronisches Gerät
DE102017205054A1 (de) * 2017-03-24 2018-10-18 Zf Friedrichshafen Ag Einrichtung zum Messen von Druck

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0536536A (ja) * 1991-08-02 1993-02-12 Matsushita Electric Ind Co Ltd 平面インダクタンス部品
JPH0878240A (ja) * 1994-09-05 1996-03-22 Tokin Corp 可変インダクタンス素子
JPH08288143A (ja) * 1995-04-17 1996-11-01 Matsushita Electric Ind Co Ltd 可変インダクター
EP0767984A1 (fr) * 1995-04-28 1997-04-16 Koninklijke Philips Electronics N.V. Rechargeur d'accumulateur electrique
JP2000296612A (ja) * 1999-04-15 2000-10-24 Seiko Epson Corp 電磁変換素子、その製造方法および可変インダクタ素子
US20070085121A1 (en) * 2005-03-29 2007-04-19 Kyocera Corporation Ferrite material and ceramic substrate

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3307405A (en) * 1964-05-27 1967-03-07 Lockheed Aircraft Corp Ferrimagnetic pressure transducer
US3717039A (en) * 1969-08-04 1973-02-20 Int Technical Ind Method and means for amplifying the stress and strain in a stress-sensitive component
DE19809794A1 (de) * 1998-03-09 1999-09-16 Gatzen Hans Heinrich Induktiver Mikrosensor zur Messung von Dehnung
WO2006117293A1 (fr) * 2005-05-03 2006-11-09 Continental Teves Ag & Co.Ohg Capteur de pression magnetoelastique

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0536536A (ja) * 1991-08-02 1993-02-12 Matsushita Electric Ind Co Ltd 平面インダクタンス部品
JPH0878240A (ja) * 1994-09-05 1996-03-22 Tokin Corp 可変インダクタンス素子
JPH08288143A (ja) * 1995-04-17 1996-11-01 Matsushita Electric Ind Co Ltd 可変インダクター
EP0767984A1 (fr) * 1995-04-28 1997-04-16 Koninklijke Philips Electronics N.V. Rechargeur d'accumulateur electrique
JP2000296612A (ja) * 1999-04-15 2000-10-24 Seiko Epson Corp 電磁変換素子、その製造方法および可変インダクタ素子
US20070085121A1 (en) * 2005-03-29 2007-04-19 Kyocera Corporation Ferrite material and ceramic substrate

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
BIENKOWSKI A ET AL: "The possibility of utilizing the high permeability magnetic materials in construction of magnetoelastic stress and force sensors", SENSORS AND ACTUATORS A, ELSEVIER SEQUOIA S.A., LAUSANNE, CH, vol. 113, no. 3, 16 August 2004 (2004-08-16), pages 270 - 276, XP004523081, ISSN: 0924-4247 *
EPCOS: "The impact of pressure on ferrites", DATA SHEET EPCOS, XX, XX, 1 July 2005 (2005-07-01), pages 1 - 4, XP007906372 *

Also Published As

Publication number Publication date
DE102007024908A1 (de) 2008-12-04
WO2008145478A2 (fr) 2008-12-04

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