System for positioning a transducer

Details System for positioning a transducer System for positioning a transducer

G - Physics

05

D

352/21.33

G05D 3/20 (2006.01) B41J 19/18 (2006.01) G11B 5/55 (2006.01)

Patent

CA 2036024

ABSTRACT The present invention proposes a system for positioning a control object such as a magnetic head by moving at a high speed such object without generation of vibration. The system comprises an actuator loading the magnetic head and an arithmetic control means for controlling a drive motor of the actuator based on result of digital arithmetics. The arithmetic control means com- putes target position, target velocity and target acceleration of each sample period in accordance with polynomials indicating pre- determined target position, target velocity and target accelera- tion, outputs at least one error between the target position, target velocity as a result of arithmetic and position, velocity of the magnetic head at every sample period and controls the drive motor with an added output of the such position error or speed error and target acceleration as a result of the arithmetic.

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