The air index tester is an off line testing device simulating air jet weft insertion and measuring velecity of thr weft yarn(average and variation) in an air jct.

• 纱线气流指数仪是一种类似喷气织机引纬系统脱机操作的测试装置,用于测试喷气织造纬纱的速度(平均值和变异系数)。