Dual mode velocity servo control for a linear actuator motor

Details Dual mode velocity servo control for a linear actuator motor Dual mode velocity servo control for a linear actuator motor

1975-03-27

1977-06-14

Eddleman, Alfred H.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

318617, 360 77, 360105, G11B 556, G11B 2108, G11B 1700

Patent

active

040301320

ABSTRACT:
A servo system for controlling the movement of one or more magnetic transducer heads relative to rotating magnetic disc surfaces which are supported and transported by means of a linear actuator motor having position and velocity modes of control, and which additionally has an anticipatory mode of control which provides a compensatory signal proportional to the rate of change of the servo velocity error over the operating frequencies of the system so that the linear actuator motor is responsive to both the velocity error and compensatory mode signals to reduce velocity overshoots from a predetermined programmed velocity profile.

REFERENCES:
patent: 3699555 (1972-10-01), Du Vall
patent: 3789378 (1974-01-01), Bonzano et al.
patent: 3827081 (1974-07-01), Prieur
patent: 3893180 (1975-07-01), Braun et al.

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