Method of adjusting a fluxgate magnetometer apparatus

Details Method of adjusting a fluxgate magnetometer apparatus Method of adjusting a fluxgate magnetometer apparatus

2005-12-06

2005-12-06

LeDynh, Bot (Department: 2862)

Electricity: measuring and testing

Magnetic

Magnetometers

C033S361000

Reexamination Certificate

active

06972563

ABSTRACT:
A single-axis, fluxgate magnetometer apparatus comprises: an excitation subassembly comprising a toroidal core wound with a predetermined number of turns of an excitation coil; and a pick up subassembly comprising a coil form including a hollow chamber, and a predetermined number of turns of a pick up coil wound on the coil form about the hollow chamber, the excitation subassembly disposed in the hollow chamber of the coil form and secured in the hollow chamber at a desired position. A method of adjusting the single-axis, fluxgate magnetometer apparatus comprises the steps of: applying an excitation signal to the excitation coil while disposed in the hollow chamber; monitoring a signal waveform of the pick up coil responsive to the excited excitation coil; adjusting the position of the excitation subassembly in the hollow chamber to effect a desired signal waveform of the pick up coil; and securing the excitation subassembly in the hollow chamber at the position that provides the desired signal waveform.

REFERENCES:
patent: 6633160 (2003-10-01), How et al.
patent: 2004/0027120 (2004-02-01), Rippingale
D.H. Titterton and J.L. Weston, “Strapdown Inertial Navigation Technology”, Peter Peregrinus Ltd. On behalf of the Institution of Electrical Engineers, 1997.
R. Noble, “Fluxgate Magnetometry”, Electron, Wirel. World, 1991, pp. 726-730.
A Hine, “Magnetic Compasses and Magnetometers”, Adam Hilger, 1968.

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