Abstract
This introductory chapter explains the role of control valves in the process industry and the motivation for the detection of valve stiction in control loops. It reviews some definitions of the term “stiction” and similar phenomena (deadband, backlash, hysteresis, etc.) that can occur in control valves. Some basic analysis tools will be described, including the input–output relation of valves under stiction and the describing function analysis. Data from typical industrial control loops are presented to illustrate the effects of stiction on the shape of loop signals, such as the process variable and the controller output.
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© 2010 Springer-Verlag London Limited
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Jelali, M., Huang, B. (2010). Introduction. In: Jelali, M., Huang, B. (eds) Detection and Diagnosis of Stiction in Control Loops. Advances in Industrial Control. Springer, London. https://doi.org/10.1007/978-1-84882-775-2_1
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DOI: https://doi.org/10.1007/978-1-84882-775-2_1
Publisher Name: Springer, London
Print ISBN: 978-1-84882-774-5
Online ISBN: 978-1-84882-775-2
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