Abstract

This paper originally applied an optimal sliding mode based optimal composite nonlinear feedback (ISM-CNF) control strategy to the capacitive micromachined ultrasonic transducers (CMUTs) system. It is known that CMUTs system is inherently unstable which results in pull-in phenomenon and sensitive to a small perturbations. Therefore the major problem is to stablize the CMUTS system beyond the pull-in limit with the external disturbances and input saturation. We verified the effectiveness by CNF and optimal ISM-CNF control methods through extending the travel range of the CMUTs gap. The simulation results show the optimal ISM-CNF control law which achieves robustness, quick response, negligible overshoot and extends the travel range to 90% of the initial gap is better than CNF control law in CMUTs system.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.