Winding – tensioning – or guiding – Strand tensioning device – Tortuous course
Patent
1977-02-07
1978-05-23
Mautz, George F.
Winding, tensioning, or guiding
Strand tensioning device
Tortuous course
242191, 318 6, 318315, G11B 1546, G11B 1554
Patent
active
040906795
ABSTRACT:
A method of imparting a predetermined tension to a tape transported at a predetermined velocity from one to the other of the reels mounted on a pair of reel spindles at least one of which is rotated by a motor to have a rotational torque imparted thereto, wherein detection is made of the number of revolutions of the reel spindle rotated by the motor, a signal resulting from said detection is frequency-voltage converted, then the thus converted signal is converted into a logarithmic signal, subsequently the logarithmic signal is subtracted from a reference voltage, and a signal resulting from the subtraction is supplied to the motor to thereby impart a predetermined tension to the tape.
REFERENCES:
Tape Speed Control Method, A. C. Thorpe -- I.B.M. Technical Disclosure Bulletin, vol. 15, No. 8, pp. 2603-2605, Jan. 1973.
Mautz George F.
Shin-Shirasuna Electric Corp.
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