A New Two-Sided Cumulative Sum Quality Control Scheme
作者:
RonaldB. Crosier,
期刊:
Technometrics
(Taylor Available online 1986)
卷期:
Volume 28,
issue 3
页码: 187-194
ISSN:0040-1706
年代: 1986
DOI:10.1080/00401706.1986.10488126
出版商: Taylor & Francis Group
关键词: Multivariate CUSUM;Average run length;Markov chain;Steady state
数据来源: Taylor
摘要:
A new two-sided cumulative sum quality control scheme is proposed. The new scheme was developed specifically to be generalized to a multivariate cumulative sum quality control scheme. The multivariate version will be examined in a subsequent paper; this article evaluates the univariate version. A comparison of the conventional two-sided cumulative sum scheme and the proposed scheme indicates that the new scheme has slightly better properties (ratio of on-aim to off-aim average run lengths) than the conventional scheme. Steady state average run lengths are discussed. The new scheme and the conventional two-sided cumulative sum scheme have equivalent steady state average run lengths. Methods for implementing the fast initial response feature for the new cumulative sum scheme are given. A comparison of average run lengths for the conventional and proposed schemes with fast initial response features is also favorable to the new scheme. A Markov chain approximation is used to calculate the average run lengths of the new scheme.
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