Statistical process monitoring with principal components

Christina M. Mastrangelo, George Runger, Douglas Montgomery

Research output: Contribution to journalArticle

46 Citations (Scopus)

Abstract

Most industrial processes are characterized by a system of several variables, all of which are subject to drifts, disturbances, and assignable causes of variation. In the chemical and process industries, there are often inertial forces arising from raw material streams, reactors and tanks that introduce serial correlation over time into these variables. This autocorrelation can have a profound impact on the effectiveness of the statistical monitoring methods used for such processes. This paper reviews some of the available methodology for multivariate process monitoring and shows the effectiveness of principal components in this context. An application of the principal components approach with correlated observation vectors is presented. The effectiveness of this procedure to indicate process upsets is discussed.

Original languageEnglish (US)
Pages (from-to)203-210
Number of pages8
JournalQuality and Reliability Engineering International
Volume12
Issue number3
StatePublished - 1996

Fingerprint

Process monitoring
Autocorrelation
Raw materials
Monitoring
Industry
Principal components

Keywords

  • Autocorrelation
  • Multivariate quality control
  • Principal components analysis

ASJC Scopus subject areas

  • Management Science and Operations Research
  • Engineering (miscellaneous)

Cite this

Statistical process monitoring with principal components. / Mastrangelo, Christina M.; Runger, George; Montgomery, Douglas.

In: Quality and Reliability Engineering International, Vol. 12, No. 3, 1996, p. 203-210.

Research output: Contribution to journalArticle

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