Electricity: measuring and testing – Magnetic – Magnetic field detection devices
Reexamination Certificate
2005-11-09
2010-02-09
Whittington, Kenneth J (Department: 2858)
Electricity: measuring and testing
Magnetic
Magnetic field detection devices
Reexamination Certificate
active
07659717
ABSTRACT:
A sensor for measuring the magnetic flux of a sample material includes a first pick-up coil for generating a pick-up signal and a second pick-up coil for generating another pick-up signal. The first and second pick-up coils are arranged such that they have a substantially equal sensitivity with respect to a background field and a substantially equal sensitivity with respect to deviations from a central position within the coils. The coils have a different sensitivity with respect to a field generated by the sample. The sensor can be used to measure the magnetic response of magnetic material in a varying background field, e.g. for full hysteresis measurement equipment using pulsed magnetic fields. The invention also has applications in a meter for magnetic moment and in measuring induced currents in metallic samples, where it is necessary to make a measurement in the presence of an unwanted background field.
REFERENCES:
patent: 4523147 (1985-06-01), D'Angelo et al.
patent: 5134370 (1992-07-01), Jefferts et al.
patent: 7081747 (2006-07-01), Butters et al.
patent: 2002/0115571 (2002-08-01), Yokosawa et al.
patent: 2004/0196035 (2004-10-01), Leger et al.
patent: 2007/0210790 (2007-09-01), Butters et al.
patent: 0 379 374 (1990-07-01), None
patent: 2 687 478 (1993-08-01), None
patent: 2 382 149 (2003-05-01), None
Kato Seiichi et al., Pulsed Field Magnetometer for Low-Temperature Study of High-Performance Permanent Magnets, IEEE Transactions on Magnetics, vol. 36, No. 5, Sep. 2000, pp. 3634-3636.
Translation of official action received from Chinese Patent Office in related Chinese application (no prior art cited).
Bacon & Thomas PLLC
Metis Instruments & Equipment N.V.
Whittington Kenneth J
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