1988 | OriginalPaper | Buchkapitel
Identification of the Mathematical Model of a Servo Valve by means of a Square Wave Signal
verfasst von : Shichang Zhou, Xinming Cao, Chenrui Gao, Yanyong Yang
Erschienen in: Systems Analysis and Simulation II
Verlag: Springer US
Enthalten in: Professional Book Archive
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Paper describes the experimental results of identification of a two-stage servo valve with moving coil force motor by means of a square wave signal and the method of mathematical treatment. The transfer function of the valve identified is obtained as $$ G(s) = \frac{{0.04767}}{{\frac{{{S^2}}}{{{{59.4}^2}}} + \frac{{2x0.47}}{{59.4}}s + 1}}$$ The step response of this transfer function was computed by digital simulation and was compared with the experimental results of the valve. Two lines withing 5% of one another.