STEP FORM DETECTION: A COMPARISON OF CURVE FITTING TECHNIQUES
H. Jokinen, H. Ihalainen, M. Moisio
Abstract:
Controlling of process flow is problematic if the valves do not behave ideally. The non-ideal behaviour of a valve causes the valve position to differ from the action given by the control system, which produces discontinuities in the process flow. This is shown as stick-slip steps in the measurement signals. A curve fitting technique is used in step form detection. In this paper we compare this curve fitting technique to well-known Haar wavelet method and present their ability in reliable step form detection.
Keywords:
signal processing, stick-slip steps, Haar wavelets
Download:
IMEKO-WC-2000-TC10-P265.pdf
DOI:
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Event details
Event name:
XVI IMEKO World Congress
Title:

Measurement - Supports Science - Improves Technology - Protects Environment ... and Provides Employment - Now and in the Future

Place:
Vienna, AUSTRIA
Time:
25 September 2000 - 28 September 2000
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