The article described the principle of AT1200 weft accumulator system and especiallyanalysed the principle of operation for weft control sensor and three chips of thick flim cir-cuits(09818,09819,and09820).

• 本文分析了AT1200型储纬器控制系统原理,着重对该储纬器的纬量传感器和三块厚膜电路(09B18、09B19,09B20)工作原理进行了剖析。