Tape Tension Control Using Movable Tape Guide in Tape Transport System for VCR

Abstract

This paper describes tension control in tape transport system for VCR using movable tape guide which is set between supply-reel and cylinder. This movable tape guide is translation motion type, and is driven by voice-coil actuator. And sensor coil for detecting the velocity of tape guide is set side by side with driving coil. In experiment for verification,the magnitude of tension fluctuation is suppressed to about 1/3.