Skip to main content

Search Proceedings

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:
  • DOI:
    _unreg_wc-2000.265

Event details:

  • IMEKO TC:
  • 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