NDLI: Effects of stability asymmetry in parametrically actuated MEMS sensors on phase flip probability

Content Provider	IEEE Xplore Digital Library
Author	Lily Li Turner, K.
Copyright Year	2015
Description	Author affiliation: Dept. of Mech. Eng., Univ. of California, Santa Barbara, Santa Barbara, CA, USA (Lily Li; Turner, K.)
Abstract	This work investigates how stability symmetry affects the solution tendency in two common MEMS sensors operating in degenerate parametric resonance. Prior work showed that a phase-squeezing event occurring prior to bifurcation can be used as a precise tracking parameter in mass sensing applications. Here we demonstrate that stability asymmetry has no effects on the probability of solution going to either of the two nontrivial stable branches of the pitchfork bifurcation. Experiments show that whether the device has perfect symmetry or not results in 50% probability distribution to either branch of the solution. In other words, stability asymmetry has no effect on the shapes of the potential wells. This finding provides confidence in tuning of MEMS devices without losing the general response characteristics of parametric resonance. Much higher sensitivity in parametric mass sensing can be achieved by tuning the stability symmetry with almost vertical slope.
Sponsorship	IEEE
Starting Page	1
Ending Page	4
File Size	1409182
Page Count	4
File Format	PDF
e-ISBN	9781479982035
DOI	10.1109/ICSENS.2015.7370325
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-11-01
Publisher Place	South Korea
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Sensors Bifurcation Micromechanical devices Stability analysis Laser beams Laser stability Tuning Comb Drive Parametric Resonance Stability Symmetry Phase Noise Phase Probability
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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