YUAN Gang, ZHANG Xiao-bo, WANG Dai-hua etc. Hysteresis and linearization of piezoelectric fast steering mirror[J]. Editorial Office of Optics and Precision Engineering, 2015,23(6): 1650-1656
YUAN Gang, ZHANG Xiao-bo, WANG Dai-hua etc. Hysteresis and linearization of piezoelectric fast steering mirror[J]. Editorial Office of Optics and Precision Engineering, 2015,23(6): 1650-1656 DOI: 10.3788/OPE.20152306.1650.
Hysteresis and linearization of piezoelectric fast steering mirror
For the hysteresis of a piezoelectric Fast Steering Mirror (FSM)
the working principle and hysteresis properties of the piezoelectric FSM were analyzed. The Bouc-Wen hysteresis operator based mathematical model of the piezoelectric FSM and the corresponding parameter identification method were proposed. The hysteresis component of excursion angle of the piezoelectric FSM was estimated by the Bouc-Wen hysteresis operator
and parameters of Bouc-Wen hysteresis operator were identified according to the excursion angles of the piezoelectric FSM at two driven voltage waves with the same phase position. On this basis
a feedback forward linearization method for the piezoelectric FSM was proposed. In order to validate the proposed mathematical model and linearization method
the rapid prototyping system for the piezoelectric FSM and a linearization controller and an experimental set for the parameter identification of the Bouc-Wen hysteresis operator were established. The experimental results show that the proposed identification method estimates the parameters of the Bouc-Wen hysteresis operator of the piezoelectric FSM accurately and the feedback forward linearization method increases the linearity of mirror deflection angle and input control voltage of the piezoelectric FSM by 2.3% and decreases the delaying error by ±0.5% respectively. It satisfies the requirements of precision control of the piezoelectric FSM.
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