Self-corrected synchro/resolver
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United States of America Patent
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Feb 4, 1986
Issued Date -
N/A
app pub date -
May 30, 1984
filing date -
Nov 29, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A synchro/resolver, preferably for use in combination with a similarly constructed servo motor, having an annular stator with circumferentially arranged poles, each having a plurality of regularly pitched teeth and each pole with its own coil winding thereon, and with the coils being connected in phases, an annular, toothed rotor positioned adjacent to the stator so that a change in rotational position of the rotor changes the inductance of the coil windings as a function of the position of the rotor's teeth vis-a-vis the stators' teeth, and a detecting circuit for sensing alternating current flowing in each coil phase and for amplifying the differences between the currents in each phase to produce a rotational position output signal for commutating the motor, the stator being divided at its longitudinal midpoint into two halves which are rotated with respect to each other by a distance equal to one tooth pitch divided by the number of phases and being separated from each other by a lamina of non-magnetic material.
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