Electricity: measuring and testing – Magnetic – Magnetometers
Reexamination Certificate
2005-10-17
2010-12-21
Whittington, Kenneth J (Department: 2858)
Electricity: measuring and testing
Magnetic
Magnetometers
C324S207210, C338S03200R
Reexamination Certificate
active
07855555
ABSTRACT:
The device for measuring magnetic field by using a magnetoresistive sensor comprises at least one magnetoresistive sensor (5), a module (50) for measuring the resistance of the magnetoresistive sensor (5), a generator module (40, 6) for generating an additional magnetic field in the space containing the magnetoresistive sensor (5), and a control unit (60) firstly for selectively controlling the generator module (40, 6) to apply an additional magnetic field pulse possessing a first value with first polarity that is positive or negative and magnitude that is sufficient to saturate the magnetoresistive sensor (5), and secondly for selectively controlling measurement of the resistance of the magnetoresistive sensor (5) by the module (50) for measuring resistance.
REFERENCES:
patent: 5351003 (1994-09-01), Bauer et al.
patent: 6031273 (2000-02-01), Torok et al.
patent: 6191581 (2001-02-01), Van Dau et al.
patent: 7570046 (2009-08-01), Keefover et al.
patent: 2002/0060565 (2002-05-01), Tondra
patent: 2003/0042902 (2003-03-01), Kobayashi et al.
Biziere Nicolas
Fermon Claude
Pannetier Myriam
Commissariat á l'énergie atomique et aux énergies
Weingarten Schurgin, Gagnebin & Lebovici LLP
Whittington Kenneth J
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