Optical viscosity sensor

Cheng-Ling Chang; Juliette Peyroux; Alex Perez; Chi-Leung Tsui; Wei-Chih Wang

doi:10.1117/12.816544

8 April 2009 Optical viscosity sensor

Cheng-Ling Chang, Juliette Peyroux, Alex Perez, Chi-Leung Tsui, Wei-Chih Wang

Proceedings Volume 7295, Health Monitoring of Structural and Biological Systems 2009; 72951Z (2009) https://doi.org/10.1117/12.816544
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2009, San Diego, California, United States

Abstract

Viscosity measurement by bend loss of fiber is presented. The sensing principle makes use of the damping characteristic of a vibrating optical fiber probe with fix-free end configuration. By measuring the displacement of the fiber probe, the viscosity can be determined by matching the probe's displacement with the displacement built in the database obtained by either experimental method or Finite element calculation. Experimental results are presented by measuring the sucrose and glycerol solutions of different concentrations with a viscosity varying from 1 to 15 cP. Stokes' flow assumption is utilized to attenuate the mass density effect and simplify the viscosity measurement.

Citation Download Citation

Cheng-Ling Chang, Juliette Peyroux, Alex Perez, Chi-Leung Tsui, and Wei-Chih Wang "Optical viscosity sensor", Proc. SPIE 7295, Health Monitoring of Structural and Biological Systems 2009, 72951Z (8 April 2009); https://doi.org/10.1117/12.816544

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