Fuzzy Mathematics for Raw Silk Size Control

With photographing and experiments,this paper divides the cocoon layers into three categories according to their colors,establishes three-color membership function based on fuzzy mathematics,constructs fuzzy sets which satisfy the range of size control by using the ordinary set and attached frequency of three-color cocoons combination,then achieves the ordinary sets of range of size control by choosing λ-cut.Under these ordinary sets,each end does duality relative level,then sets up relative matrix and overall sequence and finds the membership function to judge whether the size control is normal.