Hotelling's T2control chart with adaptive sample sizes
作者:
F. APARISI,
期刊:
International Journal of Production Research
(Taylor Available online 1996)
卷期:
Volume 34,
issue 10
页码: 2853-2862
ISSN:0020-7543
年代: 1996
DOI:10.1080/00207549608905062
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Some quality control schemes have been developed when several related quality characteristics are to be monitored: simultaneous X¯ charts, Hotelling's T2chart, multivariate CUSUM and multivariate EWMA. Hotelling's T2control chart has the advantage of its simplicity but it is slow in detecting small process shifts. The latest developments in variable sample sizes for univariate control charts are applied in this paper to define an adaptive sample sizes T2control chart. As occurs in the univariate case the ARL improvements are very important particularly for small process shifts. An example is given to illustrate the use of the proposed scheme.
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