Title:
磁界感知センサ装置
Document Type and Number:
Japanese Patent JP2007515629
Kind Code:
A
Abstract:
A magnetic -field-sensitive sensor arrangement comprises - a first conductor arrangement with at least two electrical half-bridges each having at least two bridge branches, at least one of which contains a magnetic-field-sensitive semiconductor element, which sensor arrangement supplies a measurement signal depending on the magnetic field strength of a component of a magnetic field at the location of at least one of the half-bridges, this being referred to as the measurement field and being aligned in a measurement direction of the sensor arrangement, and - a device which forms the measurement field with a value of its magnetic field strength, which depends on the magnetic permeability of a medium that at least partially surrounds the sensor arrangement, whereby the measurement signal is a measure of the magnetic permeability of the medium. A simple sensor arrangement for measuring a medium which affects a magnetic field is thus provided.
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Inventors:
Reinhard, Buchholt
Michael, Descher
Stephan, Butzman
Michael, Descher
Stephan, Butzman
Application Number:
JP2006542078A
Publication Date:
June 14, 2007
Filing Date:
November 25, 2004
Export Citation:
Assignee:
Koninklijke Philips Electronics N.V.
International Classes:
G01R33/12; G01N27/72; G01N27/74; G01R33/02; G01R33/09
Attorney, Agent or Firm:
Kenji Yoshitake
Hidetoshi Tachibana
Yasukazu Sato
Hiroshi Yoshimoto
Yasushi Kawasaki
Hidetoshi Tachibana
Yasukazu Sato
Hiroshi Yoshimoto
Yasushi Kawasaki