Winding – tensioning – or guiding – Reeling device – Fishing rod reel
Patent
1975-11-14
1977-04-05
Christian, Leonard D.
Winding, tensioning, or guiding
Reeling device
Fishing rod reel
318 7, G03B 104, G11B 1532
Patent
active
040157997
ABSTRACT:
A reel-to-reel web (tape) transport apparatus which has no tape length buffering between the supply and take-up reels. The tape follows a fixed length path from the supply reel, past a read/write head and guides, to a take-up reel. A two motor control mechanism is employed in which one motor drives the take-up reel and one motor drives the supply reel to maintain the appropriate tension and tape motion at the read/write head. The control mechanism is adaptive to dynamic changes as the tape is moved from the supply reel to the take-up reel. Three quantities are monitored: lineal tape position and the angular reel displacement of the supply and take-up reel. From these quantities reel radii are derived, tape inertia calculated and the velocity or position error is determined. A motor current algorithm is utilized to generate the appropriate torque for each reel to drive the control error to zero along a predetermined profile with negligible tape tension disturbances. The result is a reel-to-reel tape drive with static and dynamic performance characteristics which are independent of reel radius and inertia changes resulting from tape motion.
REFERENCES:
patent: 3834648 (1974-09-01), Rose, Jr. et al.
patent: 3910527 (1975-10-01), Buhler et al.
patent: 3938041 (1976-02-01), Louth et al.
Koski John Alexander
Lissner Rudolf Werner
Roberts Spencer Donald
Christian Leonard D.
International Business Machines - Corporation
Lamb Owen L.
Otto, Jr. Henry E.
LandOfFree
Adaptive reel-to-reel tape control system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Adaptive reel-to-reel tape control system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adaptive reel-to-reel tape control system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2263164