Closed-Loop Step Servo System
Original Publication Date: 1980-Jan-01
Included in the Prior Art Database: 2005-Feb-11
Disclosed herein is a DC motor-based closed-loop step servo system with inherent detent positions without an expensive optical encoder for position detection. A high-speed optical synchro decoder is disclosed in IBM Technical Disclosure Bulletin 20, 257 (June 1977). From the system as displayed, position and velocity information may be recovered as from, for example, rotary shafts, gears, cams, motors or other rotary actuators.