田口式测量质量工程学与传统MSA 的比较分析

从测量经济性出发,田口式测量质量工程学通过重新定义测量质量、二次测量质量损失函数及测量质量SN比,成功地解决了一些传统MSA难以解决的测量系统分析难题:利用典型点测量观测值推导校准公式,从而推导测量全量程的校准数据及测量不确定度;用正交设计及SN比分析多参量有交互效应误差因素对测量结果的影响;合理评定计量器具的最佳校准周期等.通过与传统MSA比较分析认为,推行田口式测量质量工程学可以改进测量系统分析的经济性,并提高测量精度.

Comparatively Analysis of Taguchi Measurement Quality Engineering and Traditional MSA

From the measurement economics,Taguchi measurement quality engineering defines measurement quality renewedly and square quality loss function and signal-noise ratios,resolves some problems that traditional MSA methods may not settle down: using measurements of representative values to deduce caliberation formula and to compute caliberation and uncertainty of all range;using Orthogonal Array and SN ratios to analyse influence of multi-variable which have mutual affects;evaluating best caliberation periods of measurement instruments.We come to the conclusion that the measurement system analysis economics and caliberation precision will be highly promoted by pushing Taguchi measurement quality engineering.