Method of calculating compensation value for angle detecting...

Details Method of calculating compensation value for angle detecting... Method of calculating compensation value for angle detecting...

2007-06-12

2007-06-12

Barlow, John (Department: 2863)

Data processing: measuring, calibrating, or testing

Measurement system

Speed

Reexamination Certificate

active

11298883

ABSTRACT:
A method of calculating a compensation value for an angle detecting sensor including a sensor unit, a signal converting section, a signal adjusting section, an arithmetic operation section, a memory section, and a compensator includes a first step of generating two signals having a predetermined phase difference from a plurality of output signals; a second step of calculating a rotation angle of an object from the two signals as an output angle before compensation; and a third step of extracting a candidate signal having a minimum residual energy in the signal after removal as the compensation value when a plurality of candidate signals having the same period but different amplitudes has been removed from a total error signal included in the output angle before compensation.

REFERENCES:
patent: 2005/0039572 (2005-02-01), Friedmann
patent: 2000-35470 (2000-02-01), None
patent: 2002-303536 (2002-10-01), None
patent: 2003-66127 (2003-03-01), None
patent: 2003-106866 (2003-04-01), None

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