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Stability Evaluation of In-Line Measurement System with Repeated Measurements  

Joung, Sooho (Department of Industrial and Systems Engineering and Research Center for Aircraft Parts Technology, Gyeongsang National University)
Byun, Jai-Hyun (Department of Industrial and Systems Engineering and Research Center for Aircraft Parts Technology, Gyeongsang National University)
Publication Information
Journal of Korean Institute of Industrial Engineers / v.30, no.1, 2004 , pp. 36-43 More about this Journal
Abstract
In-line measurement systems are preferred to those in analytical laboratories, since in-line systems provide rapid response to process upsets. If an in-line measurement system exhibits an unstable variation and if this instability in measurement variation goes undetected, it will make the process monitoring procedure invalid. This paper presents a stability evaluation procedure for the in-line measurement system using two independent readings from the in-line measurement system and one reading from the analytical laboratory, which requires less measurement cost and time.
Keywords
stability evaluation; in-line measurement system; analytical laboratory measurement system; repeated measurements; measurement cost; measurement time;
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