title: Liquid viscosity sensing using nonlinear vibration of a fiberoptic sensor.
abstract: This paper investigates the nonlinear dynamic motion of a vibrating optical fiber viscosity sensor through representative cases of primary and super-harmonic resonance. The results show that a nonlinear effect drastically improves the sensitivity of the viscosity measurement by nearly an order of magnitude from the previously developed linear systems. Experimental results and several applications of the viscosity sensor are also presented.
authors.affiliation: Department of Mechanical Engineering, University of Washington, Seattle, Washington 98195, USA.
authors.forename: Wei-Chih
authors.initials: WC
authors.lastname: Wang
authors.forename: Chao-Shih
authors.initials: CS
authors.lastname: Liu
mesh_terms: D004867:Equipment Design; D017711:Nonlinear Dynamics; D055100:Optical Fibers; D014732:Vibration; D014783:Viscosity