Universiti Teknologi Malaysia Institutional Repository

Application of partial correlation in active statistical process control

Ibrahim, Kamarul 'Asri (1997) Application of partial correlation in active statistical process control. In: Regional Symposium on Chemical Engineering 1997 in conjunction with 13th Symposium of Malaysian Chemical Engineers, 13-15 October 1997, Hyatt Regency, Johor, Malaysia.

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Abstract

Most of the research in Stastical Process Control (SPC) has been focused on the charting techniques which are employed to monitor the process. Unfortunately, little attention is focused on the importance of bringing the process control automatically via these charting techniques. By utilising Automatic Process Control (APC) concept it is possible to devise a method whereby the process is monitored and automatically controlled via SPC procedures. The proposed method avoids the time series or dynamic model identification problems, by focusing only on statistical input-output relationship via Partial Correlation Analysis (PCorrA). The advantage of this method lies in the ability of PCorrA to quantify the relationship between quality variables and input variables. A discussion of how to implement PCorrA in SPC is given. Finally the results of applying this strategy to a simulated reversible reaction process are shown and discussed.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Automatic process control, partial correlation analysis, reversible reaction process, Shewhart chart, statistical process control
Subjects:T Technology > T Technology (General)
Divisions:Chemical and Natural Resources Engineering (Formerly known)
ID Code:4706
Deposited By: Norhani Jusoh
Deposited On:18 Dec 2007 02:04
Last Modified:01 Jun 2010 03:20

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