G - Physics – 05 – B
Patent
G - Physics
05
B
341/88
G05B 11/42 (2006.01) G05B 19/25 (2006.01)
Patent
CA 1127743
SYSTEM FOR CREATING A SERVO CONTROL SIGNAL Abstract of the Disclosure A system for creating a control reference signal for a remote electrical servo device having a movable output unit wherein the velocity and position of the output unit are controlled by the vector magnitude of the control reference signal. This system includes a digital circuit for creating a first fixed analog signal indicative of a known or desired velocity for the unit during a preselected controlled time interval and a second digital means for creating a desired time base positional profile during the preselected time interval. An encoder arrangement is employed for detecting the actual time base positional profile of the servo output unit during the given time interval so that an analog signal generally proportional to the algebraic difference between the actual and desired time base positional digital profile can be created at various times during the time interval. The control reference signal is then created by a summing circuit as a function of both the first and second analog signals the first of which is proportional to a desired velocity and the second of which is proportional to the algebraic difference between a desired and actual position of the servo output unit.
343586
Gowling Lafleur Henderson Llp
Magicam Inc.
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