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Sensors 2014, 14(4), 7041-7048; doi:10.3390/s140407041

Effect of Angular Velocity on Sensors Based on Morphology Dependent Resonances

1
Mechanical Engineering Department, Micro-Sensor Laboratory, Southern Methodist University, 3101 Dyer Street, Dallas, TX 75205, USA
2
Mechanical Engineering Department, Microsystems Research Laboratory, Southern Methodist University, 3101 Dyer Street, Dallas, TX 75205, USA
*
Author to whom correspondence should be addressed.
Received: 13 February 2014 / Revised: 7 April 2014 / Accepted: 14 April 2014 / Published: 22 April 2014
(This article belongs to the Section Physical Sensors)
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Abstract

We carried out an analysis to investigate the morphology dependent optical resonances shift (MDR) of a rotating spherical resonator. The spinning resonator experiences an elastic deformation due to the centrifugal force acting on it, leading to a shift in its MDR. Experiments are also carried out to demonstrate the MDR shifts of a spinning polydimethylsiloxane (PDMS) microsphere. The experimental results agree well with the analytical prediction. These studies demonstrated that spinning sensor based on MDR may experience sufficient shift in the optical resonances, therefore interfering with its desirable operational sensor design. Also the results show that angular velocity sensors could be designed using this principle. View Full-Text
Keywords: angular velocity; spherical resonator; morphology dependent resonances (MDR); polydimethylsiloxane (PDMS); polymeric sensor; fiber optics; sensor fiber angular velocity; spherical resonator; morphology dependent resonances (MDR); polydimethylsiloxane (PDMS); polymeric sensor; fiber optics; sensor fiber
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This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Ali, A.R.; Ioppolo, T. Effect of Angular Velocity on Sensors Based on Morphology Dependent Resonances. Sensors 2014, 14, 7041-7048.

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