Capstan control for a tape drive system
作者： William W. Steger , William C. Arthur
DOI:
关键词: Limit (music) 、 Control theory 、 Rest (physics) 、 Control system 、 Tape drive 、 Capstan 、 Signal 、 Electronic engineering 、 Overcurrent 、 Engineering 、 Position (vector)
摘要: A control system for precisely locating a tape upon deceleration thereof from transport velocity to rest. signal is generated which represents the distance traversed by subsequent an identified event. The compared with reference representing desired distance-versus-time characteristic, and error thus given rise used either "plug" or dynamic brake motor stopping distance. Final position logic produces additional enabling should overrun its position, causes reverse reposition tape. In preferred embodiment, current limit circuit monitors through drive motor, intermittently disables portion of in response sensed overcurrent condition.
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