摘要
本文从提高统计控制图对过程波动检测能力和方便管理的角度出发 ,对可变采样间隔(VSI)控制图进行改进 ,提出了针对连续过程质量控制应用需要的固定时间域可变采样间隔(VSIFT)控制图。文章详细介绍了VSIFT均值极差控制图、VSIFTEWMA控制图的设计 。
This paper expands the Variable Sampling Interval(VSI)control charts and brings forward the Variable Sampling Interval at Fixed Times(VSIFT)control charts,from the perspective of improving the detecting ability on process drift and convenient for management.It describes in detail the design of VSIFT X control charts and the evaluation to the detecting ability of VSIFT X control charts to process drift.Then it introduces the designs of VSIFT EWMA control charts,and their abilities of detecting process abnormity.
出处
《数理统计与管理》
CSSCI
北大核心
2003年第1期45-48,共4页
Journal of Applied Statistics and Management
关键词
统计过程控制
统计质量控制
统计控制图
固定时间域可变采样间隔
VSIFT
Statistical process control(SPC)
control chart,process drift detecting
variable sampling interval(VSI)
variable sampling interval at fixed times(VSIFT)
