Title:
小型磁気コア、小型磁気コアを備えるセンサ、および小型磁気コアの製造方法
Document Type and Number:
Japanese Patent JP2009519452
Kind Code:
A
Abstract:
A miniature magnetic core includes at least one bar magnet having, in the demagnetized state, a plurality of magnetic domains separated by magnetic walls, the bar magnet having permanent discontinuities placed at least approximately at the probable locations of at least some of these magnetic walls in the absence of these permanent discontinuities. A miniature sensor includes a miniature core that cooperates with at least one excitation coil and at least one detection coil. A method for manufacturing the magnetic core includes identifying the probable location of the magnetic walls, depositing at least a thin film of magnetic material on a support in order to form the core and producing, in said core, discontinuities approximately at the identified locations of the walls.
Inventors:
Elijane, Joiwastan
Kyussier, Robert
Biara, Bernard
Audwan, Marcel
Ida, Rashi
Kyussier, Robert
Biara, Bernard
Audwan, Marcel
Ida, Rashi
Application Number:
JP2008545038A
Publication Date:
May 14, 2009
Filing Date:
December 11, 2006
Export Citation:
Assignee:
Komisariya a Renergi Atomik
International Classes:
G01R33/04; H01F3/10
Domestic Patent References:
| JP2000339621A | 2000-12-08 | |||
| JP2000098012A | 2000-04-07 | |||
| JPH1131306A | 1999-02-02 | |||
| JPS4634264B1 | ||||
| JP2002374016A | 2002-12-26 | |||
| JP2005164562A | 2005-06-23 |
Foreign References:
| WO2004077074A2 | 2004-09-10 |
Attorney, Agent or Firm:
Yoshio Kawaguchi
Makoto Ono
Chihiro Watanabe
Kenkyo Kanayama
Katsuma Osaki
Mitsuaki Tsubokura
Makoto Ono
Chihiro Watanabe
Kenkyo Kanayama
Katsuma Osaki
Mitsuaki Tsubokura