隔离环走带系统是用二个压带轮将磁带压到一个主导轴的两侧而形成闭环,是为了消除环以外的扰动(卷带不匀和带盘马达转矩的变动等)而设计的。本文分析了隔离环走带机构,说明了环内磁带张力是作为供带侧和卷带侧磁带张力的算术平均值。此外,还说明了为补充隔离环走带系统的截止效果,采用了磁带张力臂的阻尼来吸收环外磁带张力的变动。 Isolation ring transport system is the use of two pressure pulley to the tape on both sides of a capstan to form a closed loop, is to eliminate the ring outside the disturbance (uneven tape and reel motor torque changes, etc.) designed of. This paper analyzes the isolation ring deck mechanism and illustrates that the tape tension in the ring is the arithmetic average of the tape tension on the supply and take-up sides. In addition, it is shown that to compensate for the cut-off effect of the isolation loop transfer system, the damping of the tape tension arm is used to absorb the fluctuation of the tape tension outside the loop.