| 可变抽样区间图 |
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| 引用本文： | 郭宝才,孙利荣.可变抽样区间图[J].杭州师范学院学报(自然科学版),2009,1(1):6-9,38. |
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| 作者姓名： | 郭宝才 孙利荣 |
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| 作者单位： | 浙江工商大学,统计与数学学院,浙江,杭州,310018 |
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| 摘 要： | 常规控制图是每隔固定时间从过程中抽取样本对过程进行监控.根据样本均值落在控制图上的位置而变化抽样区间的长度即为变抽样区间图的思想实质.利用马氏链方法计算了变抽样区间控制图的统计效率测度.初始表现和稳态表现均表明在不增加受控时平均报警时间下,变抽样区间X图比标准休哈特图更具有实际效率.
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| 关 键 词： | 控制图 变化抽样区间 过程控制 |
X-Bar Charts with Variable Sampling Intervals |
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| GUO Bao-cai,SUN Li-rong.X-Bar Charts with Variable Sampling Intervals[J].Journal of Hangzhou Teachers College(Natural Science),2009,1(1):6-9,38. |
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| Authors: | GUO Bao-cai SUN Li-rong |
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| Institution: | (College of Statistics and Mathematics, Zhejiang Gongshang University, Hangzhou 310018, China) |
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| Abstract: | The usual practice in using a control chart to monitor a process is to take samples from the process with fixed sampling intervals. Variable sampling interval（VSI） X-bar chart is considered. A Markov chain method is used to study the statistical properties of this chart. Relative to the standard fixed sampling interval（FSI） X-bar chart, initial and steady state performance indicates that the VSI chart is more efficient. |
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| Keywords: | control chart variable sampling interval process control |
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