Coded data generation or conversion – Phase or time of phase change – Synchro or resolver signal
Patent
1991-06-17
1992-07-28
Pellinen, A. D.
Coded data generation or conversion
Phase or time of phase change
Synchro or resolver signal
341111, 318605, H03M 148
Patent
active
051343975
ABSTRACT:
A phase compensation circuit for use with a resolver circuit that compensates for resolver angle measurement error without the use of special compensation windings on the resolver or the buffer amplifier associated with the compensation windings. With the present invention, primary windings from a plurality of resolvers may be reduction over conventional circuits. A digital computer is employed to process integrated data indicative of the phase shift of signals generated by the resolver, and compute error correction signals that compensate sine and cosine angle data output signals of the resolver. No resolver compensation windings are necessary and no additional electronic equipment is necessary. The present invention provides increased accuracy to fulfill more stringent angle measurement specifications.
REFERENCES:
patent: 3878535 (1975-04-01), Twiss
patent: 4099245 (1978-07-01), Maysonett
patent: 4468745 (1984-08-01), Kjosavik
patent: 4989001 (1991-01-01), Serev
Cargille Donald R.
Eyerly Bruce N.
Denson-Low Wanda K.
Hughes Aircraft Company
Lindeen III Gordon R.
Mitchell Steven M.
Pellinen A. D.
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