Title: Geomagnetic sensor for computing azimuth and method thereof
Application Number: 200610110667 Application Date: 2006.08.07
Publication Number: 1971310 Publication Date: 2007.05.30
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G01V3/40
Applicant(s) Name: Samsung Electronics Co., Ltd. Address:
Inventor(s) Name: Lee Woo-jong;Choi Sang-on
Attorney & Agent: hanmeng xing liuyi qing
Abstract:
    A geomagnetic sensor for computing an azimuth and a method thereof. The geomagnetic sensor includes a geomagnetic sensor module, including X, Y and Z axis fluxgates orthogonal to one another, for performing normalization for mapping output values of the X, Y and Z axis fluxgates onto a previously set normalization range using previously set normalization factors, an operation module for performing operation of new normalization factors based on a plurality of normalization values output from the geomagnetic sensor module when the geomagnetic sensor is swung within a previously set range, a tilt sensor module for computing a pitch angle and a roll angle, and a control module for providing the new normalization factors to the geomagnetic sensor module to allow the geomagnetic sensor module to perform renormalization and computing an azimuth using the output values renormalized by the geomagnetic sensor module and the pitch and roll angles computed during the renormalization. Thereby, the azimuth compensatory normalization factors can be calculate easily.
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