Vector measurement of a magnetic field

Details Vector measurement of a magnetic field Vector measurement of a magnetic field

2005-01-18

2005-01-18

Shrivastav, Brij B (Department: 2859)

Electricity: measuring and testing

Particle precession resonance

C324S302000

Reexamination Certificate

active

06844726

ABSTRACT:
A vectorial magnetometer (1), measures the components of a magnetic field in three directions (Oxyz) using a scalar magnetometer (2). The field is periodically modulated in each of the directions by generators (Gx, Gy, Gz) which have a specific frequency for each direction and that power coils (Ex, Ey, Ez). Synchronous demodulation of the of the output signal of the scalar magnetometer (2) for each of the three frequencies permits the relative continuous component of each axis to be found. The vectorial magnetometer (1) is characterized in that it has means (Dx D′x, Dy D′y, Dz D′z) that can carry out a double demodulation for phase and quadrature for each of the frequencies and processing means (70) that use the continuous component modules for phase and quadrature to calculate a transfer function of the scalar magnetometer at the frequency in question, and to apply this function to the correction of the components.

REFERENCES:
patent: 3828243 (1974-08-01), Ward
patent: 5221897 (1993-06-01), Duret et al.
patent: 5239474 (1993-08-01), Eaton et al.
patent: 5534776 (1996-07-01), Leger et al.
patent: 6313628 (2001-11-01), Leger
patent: 6476610 (2002-11-01), Wiegert et al.
patent: 6714008 (2004-03-01), Holmes et al.
patent: 20040085065 (2004-05-01), Johnson et al.
patent: 0964260 (1999-12-01), None
patent: 1354208 (1964-06-01), None
patent: 2155981 (1972-10-01), None
patent: 2 663 431 (1990-06-01), None
J.M.G. Merayo, F. Primdahl, P. Brauer, The Orthogonalization of Magnetic Systems, Jan. 11, 2000.
Preliminary Search Report; dated Jun. 27, 2001.

Affiliated with

Also associated with

Rating

Vector measurement of a magnetic field does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Vector measurement of a magnetic field, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vector measurement of a magnetic field will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3385587