| 摘要 |
The invention relates to a centre drift control system, for example in connection with the unrolling and rolling- up of reels for tape, paper or the like. The system is based on regulating the current of the drive unit 1 of the reel by the use of two current reference signals, an I2, relating to desired tape tension, and an I1, containing the results of diameter calculation and compensation for the acceleration gain. <IMAGE> |
