Document Type
Article
Publication Date
2-16-2022
Keywords
Electrostatic levitation, MEMS, actuators, fringe field effect, optical micro-mirrors, large range, command shaping, open-loop control
Abstract
Command shaping is a driving technique for handling the large settling time of the high-Q-MEMS actuators. The strong nonlinearity due to the electrostatic actuation limits the linear operation range in cantilevered or torsional micro-mirrors where command shaping techniques can be applied for positioning. Experimental and simulation results of this research demonstrate the effectiveness of using electrostatic levitation to overcome the actuation nonlinearities and a significant increase in the operation range. The motivation for this research is that applying the nonlinear command shaping causes complexity in command manipulation and requires an accurate knowledge of the nonlinear terms involved in the system model. The large linear operation range generated by the levitating force allows using the practical simple command shaping methods for open-loop control.
Publisher Attribution
The final version of this article is published in Sensors and Actuators A: Physical, a journal published by Elsevier's ScienceDirect.
Recommended Citation
Mousavi, Mohammad; Alzgool, Mohammad; Lopez, Daniel; and Towfighian, Shahrzad, "Open-loop control of electrostatic levitation actuators to enhance the travel-range of optical switches" (2022). Mechanical Engineering Faculty Scholarship. 40.
https://orb.binghamton.edu/mechanical_fac/40
Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-No Derivative Works 4.0 International License.