(under subclass 560) Subject matter in which the compensating means compensates for "Two cycle error". "Two cycle error" is that characteristic of a position sensing device, usually caused by finite mechanical tolerances, which causes the device to exhibit a non-random error during each cycle of operation which repeats itself twice.
(1) Note. For example, the rotor of a synchro, because of mechanical limitation, will wobble minutely back and forth during 360 of rotation and cause a "Two cycle error".
SEE OR SEARCH THIS CLASS, SUBCLASS:
654+, and 661, for synchro or resolver systems, per se, which may include such features.
