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Adaptive sliding mode enhanced disturbance observer-based control of surgical device
Jun Yik Lau1, Wenyu Liang1, Kok Kiong Tan1
1Department of Electrical and Computer Engineering, National University of Singapore, Singapore 117576, Singapore.
Abstract:
This paper presents an enhanced adaptive robust disturbance observer-based motion tracking control methodology. This control approach is established and investigated for a semi-automated hand-held ear surgical device for the treatment of Otitis Media with Effusion. The proposed control methodology is utilised for tracking a desired motion trajectory in the presence of unknown or uncertain system parameters, nonlinearities including hysteresis, and disturbances in the motion system. The stability of the control approach is analysed. The convergence of position and velocity tracking errors is proven theoretically. A precise tracking performance following desired motion trajectory is demonstrated in the experimental study.
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