一、什么是正交试验设计正交试验设计是安排多因素试验的一种方案。多因素试验由于因素之间有交互作用而有一定的复杂性,往往进行多次试验而分不清楚每个因素的作用大小及其主次关系,选不出较好的配方或工艺条件来。正交设计的特点在于: 1、试验次数少; First, what is orthogonal test design Orthogonal test design is to arrange a multi-factor test program. Multifactorial experiments because of the interaction between factors and have some complexity, often multiple trials and can not distinguish the role of each factor size and primary and secondary relationship, choose no better formula or process conditions. Orthogonal design features are: 1, the number of tests less;