Activated switching between two driven oscillation states in a nonlinear micromechanical oscillator

H. B. Chan; C. Stambaugh

doi:10.1117/12.611829

23 May 2005 Activated switching between two driven oscillation states in a nonlinear micromechanical oscillator (Invited Paper)

H. B. Chan, C. Stambaugh

Author Affiliations +

Proceedings Volume 5846, Noise and Information in Nanoelectronics, Sensors, and Standards III; (2005) https://doi.org/10.1117/12.611829
Event: SPIE Third International Symposium on Fluctuations and Noise, 2005, Austin, Texas, United States

Abstract

We present measurements of noise induced switching for a system far from equilibrium. The system under study is an underdamped micromechanical torsional oscillator driven into the nonlinear regime. Under a sufficiently large periodic driving field, the oscillator has two stable dynamical states with different oscillation amplitudes within a certain range of driving frequencies. We induce the oscillator to escape from one dynamical state into the other by introducing noise in the excitation. By measuring the rate of random transitions as a function of noise intensity, we demonstrate the activated behavior of escape from the high-amplitude state to the low-amplitude state.

Citation Download Citation

H. B. Chan and C. Stambaugh "Activated switching between two driven oscillation states in a nonlinear micromechanical oscillator (Invited Paper)", Proc. SPIE 5846, Noise and Information in Nanoelectronics, Sensors, and Standards III, (23 May 2005); https://doi.org/10.1117/12.611829

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