| 摘要 |
<p>PURPOSE:To satisfactorily control the tape tension to prevent the damage of a tape by using the fuzzy inference, which takes tension information and tape speed information as the input, to control the torque of a take-up reel motor. CONSTITUTION:A tape running system is provided with a timer roll 104, and the signal generated by a frequency generator 109 attached to the roll 104 is inputted to a frequency-voltage converter 110 and is converted to a voltage proportional to the tape speed and is inputted to a fuzzy inference operation device 111. This device 111 takes tape speed information from the converter 110 and tape tension information from a tension detector 110 as the input and outputs the voltage resulting from fuzzy operation as a T reel motor driving voltage. This voltage is inputted to a motor driving circuit 112 through a witch circuit 123, and a current corresponding to this driving voltage flows to a T reel motor 118 by the circuit 112, and thus, the tape tension is controlled to run the tape at a fixed speed.</p> |
