| Grading Standards of the Coefficient of Variation in the Electronic Raw Silk Size Testing |
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| 作者姓名： | 许建梅 白伦 伍冬平 吴克峰 |
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| 作者单位： | School of Material Engineering, Soochow University, Suzhou, Jiangsu 215021 , China |
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| 基金项目： | Foundation item： Research Foundation of Ministry of Education for Doctoral Program （No. 20040285008） |
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| 摘 要： | In order to shorten the difference between the raw silk size grading standards of the world and that of China, to quicken the step of the electronic raw silk testing process, the distribution of the coefficient of variation （CV50m%） of the raw silk size in the electronic testing and the development of the new standards are studied according to the sampling and grading theory. By the theoretical deduction and the simulating experiments, the distribution of the coefficient of variation of the raw silk size is given, and the grading scheme whose quality index is the coefficient of variation（CV50m%）of the raw silk size and the grading precisions of all grades are proposed. Moreover, the rightness and the feasibility of the grading scheme are testified by the sampling and grading simulation.
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| 关 键 词： | 变动系数 抽样方法 等级标准 等级精密度 |
| 文章编号： | 1672-5220（2007）02-0235-05 |
| 修稿时间： | 2006-08-20 |
Grading Standards of the Coefficient of Variation in the Electronic Raw Silk Size Testing |
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| XU Jian-mei,BAI Lun,WU Dong-ping,WU Ke-feng.Grading Standards of the Coefficient of Variation in the Electronic Raw Silk Size Testing[J].Journal of Donghua University,2007,24(2):235-239. |
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| Authors: | XU Jian-mei BAI Lun WU Dong-ping WU Ke-feng |
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| Institution: | School of Material Engineering, Soochow University, Suzhou, Jiangsu 215021 , China |
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| Abstract: | In order to shorten the difference between the raw silk size grading standards of the world and that of China,to quicken the step of the electronic raw silk testing process,the distribution of the coefficient of variation (CV50m%) of the raw silk size in the electronic testing and the development of the new standards are studied according to the sampling and grading theory. By the theoretical deduction and the simulating experiments, the distribution of the coefficient of variation of the raw silk size is given,and the grading scheme whose quality index is the coefficient of variation(CV50m%)of the raw silk size and the grading precisions of all grades are proposed. Moreover,the rightness and the feasibility of the grading scheme are testified by the sampling and grading simulation. |
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| Keywords: | coefficient of variation sampling method grading standard grading precision |
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