摘要
为提高Brabender MT-C水分测定仪的测量效果,借鉴JB/T 10633—2006中的测量能力指数(Cgk)评定法,确定了缩小系数f和置信因子k的值分别为0.3和3,得到了Cgk的计算公式,并利用正交试验设计对设备参数进行了优化,最佳工艺参数为:干燥温度117℃,干燥时间16 min,样品质量8 g。验证试验结果表明,参数优化后评定指标Cg=2.0,Cgk=1.58>1.33,满足了日常周期检测对量具能力的要求。
In order to improve the measurement results of Brabender MT-C moisture meter, the values of reduction coefficient f and confidence factor k were determined as 0.3 and 3, respectively, and formula for Cgk calculation was obtained by referring to the measurement capability index （Cgk）assessment method in JB/T 10633-2006. The optimal parameters obtained by orthogonal test were： drying temperature 117℃ , drying time 16 minutes, sample mass 8 g. The results of validation test showed that under optimized conditions, the assessment index Cg was 2.0, Cgk was 1.58〉 1.33, which met the requirements of routine test.
出处
《烟草科技》
EI
CAS
北大核心
2012年第3期5-7,16,共4页
Tobacco Science & Technology
关键词
测量能力指数
缩小系数
正交试验设计
Measurement capability index（Cgk）
Reduction coefficient
Orthogonal experimental design
