| 摘要 |
A transducer carriage for multiple, movable heads in a multiple disk file is displaced from one position to another one by a linear motor, whose stator is also mounted on a carriage for recoilless reaction to rapid acceleration/deceleration control of the motor coil. A command signal is developed to be proportionate to the square root of deceleration rate times distance to be traversed due to position change, particularly for determining the beginning of deceleration. Servo loops provide for initial acceleration control followed by the deceleration phase merging with a fine position control.
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