Electricity: measuring and testing – Magnetic – Magnetometers
Patent
1998-04-08
2000-02-22
Strecker, Gerard
Electricity: measuring and testing
Magnetic
Magnetometers
324260, G01R 3302
Patent
active
060284277
ABSTRACT:
A magnetism detecting device of a magnetic impedance effect type includes a high-permeability magnetic film formed on a side of an approximately rectangular parallelepipedic, non-magnetic substrate. The high-permeability magnetic film is formed as a folded pattern having end portions extending in opposite directions and at least one folded portion disposed between the end portions, a longitudinal direction of the high-permeability magnetic film being parallel to a magnetic-field detecting direction. The high-permeability magnetic film is imparted magnetic anisotropy so that a direction of an axis of easy magnification of the high-permeability film is perpendicular to the longitudinal direction of the high-permeability magnetic film in a film plane thereof. Conductive films are formed at both ends of the high-permeability magnetic film as terminals. The high-permeability magnetic film and the conductive films are formed on the side of the non-magnetic substrate, which side is approximately perpendicular to a surface of a printed circuit board, so that the conductive films are directly soldered to a wiring pattern on the printed circuit board on which to mount the magnetism detecting device.
REFERENCES:
patent: 3260932 (1966-07-01), Weiss et al.
patent: 4079360 (1978-03-01), Ookubo et al.
patent: 5764055 (1998-06-01), Kawase
patent: 5889403 (1999-03-01), Kawase
patent: 5903414 (1999-05-01), Kawase
Canon Denshi Kabushiki Kaisha
Strecker Gerard
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