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RSS FeedsSensors, Vol. 17, Pages 1121: Nonlinear Parameter Identification of a Resonant Electrostatic MEMS Actuator (Sensors)

 
 

13 may 2017 14:15:20

 
Sensors, Vol. 17, Pages 1121: Nonlinear Parameter Identification of a Resonant Electrostatic MEMS Actuator (Sensors)
 




We experimentally investigate the primary superharmonic of order two and subharmonic of order one-half resonances of an electrostatic MEMS actuator under direct excitation. We identify the parameters of a one degree of freedom (1-DOF) generalized Duffing oscillator model representing it. The experiments were conducted in soft vacuum to reduce squeeze-film damping, and the actuator response was measured optically using a laser vibrometer. The predictions of the identified model were found to be in close agreement with the experimental results. We also identified the noise spectral density of process (actuation voltage) and measurement noise.


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79 viewsCategory: Chemistry, Physics
 
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