CPC G01C 19/24 (2013.01) [G01P 15/14 (2013.01); B81B 2201/0235 (2013.01); B81B 2201/0242 (2013.01)] | 21 Claims |
1. A method for measuring the rate of angular displacement of a traveling object about one or more axes orthogonal to one another using magnetic field sensing, the method comprising: measuring magnetic field intensity and/or changes in the magnetic field intensity, projected onto a magnetic field sensor coupled to the traveling object, to generate scalar measurements over a time duration of the magnetic field intensity and/or changes in the magnetic field intensity, wherein each of the scalar measurements corresponds to one of the orthogonal axes; providing noise-immunity in the measurements with a comparator; determining, with a processor, a number of peaks in the measurements for the time duration, wherein the number of peaks is determined from determining regions where the measurements have a zero slope for the time duration; and computing the rate of angular displacement for the traveling object, as a function of the determined number of peaks and the time duration.
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