用于分析棉纤维或化学短纤维的长度，由纤维引伸器及分析器两部分组成。 　　Used to analyze length of cotton fiber of chemical fiber.It consists of two parts,namely fiber drawoff unitanalvzer. 　　适用标准Standards:GB/T6908.1 　纤维引伸器Fiber Draw-off Unit 　a、前罗拉直径Diameter of front roller Φ8mm 　b、后罗拉直径Diameter of rear roller Φ16mm 　c、皮辊直径Diameter of covered roll Φ17mm 　d、绕棉绒棍直径Diameter of velvet lap roll Φ66mm 　纤维分析器Fiber Analyzer 　a、输棉罗拉直径Diameter of input roller Φ19.1mm 　b、分析器弹簧压力Spring Press of Analzer 70N