Encapsulations of micro-optical sensors for applications of stress management

N. Q. Nguyen, Nikhil Gupta

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Various types of fiber-optic sensors are used in composite materials for structural health monitoring. Whispering gallery mode (WGM) sensors are a special class of micro-optical sensors that are created by optical coupling of a dielectric microparticle and an optical fiber. Such sensors have potential to be used in particulate and fibrous composites to measure stress or strain. The combination of particle and optical-fiber to create sensor requires encapsulating them in a suitable material to incorporate in the composite material. The sensitivity of the encapsulated sensor needs to be calibrated before they can be used in actual applications. The present study uses modeling and simulation approaches to develop theoretical estimates of sensitivity of the encapsulated WGM sensors. Solid and hollow microparticles are considered for the study. Hollow microparticles provide higher sensitivity than solid particles of the same material because of their lower effective elastic modulus, providing higher strain for the same applied force.

Original languageEnglish (US)
Title of host publicationAmerican Society for Composites - 23rd Technical Conference of the American Society for Composites 2008
Pages323-335
Number of pages13
Volume1
StatePublished - 2008
Event23rd Technical Conference of the American Society for Composites 2008 - Memphis, TN, United States
Duration: Sep 9 2008Sep 11 2008

Other

Other23rd Technical Conference of the American Society for Composites 2008
CountryUnited States
CityMemphis, TN
Period9/9/089/11/08

Fingerprint

Optical sensors
Encapsulation
Sensors
Whispering gallery modes
Optical fibers
Composite materials
Structural health monitoring
Fiber optic sensors
Elastic moduli

ASJC Scopus subject areas

  • Ceramics and Composites

Cite this

Nguyen, N. Q., & Gupta, N. (2008). Encapsulations of micro-optical sensors for applications of stress management. In American Society for Composites - 23rd Technical Conference of the American Society for Composites 2008 (Vol. 1, pp. 323-335)

Encapsulations of micro-optical sensors for applications of stress management. / Nguyen, N. Q.; Gupta, Nikhil.

American Society for Composites - 23rd Technical Conference of the American Society for Composites 2008. Vol. 1 2008. p. 323-335.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Nguyen, NQ & Gupta, N 2008, Encapsulations of micro-optical sensors for applications of stress management. in American Society for Composites - 23rd Technical Conference of the American Society for Composites 2008. vol. 1, pp. 323-335, 23rd Technical Conference of the American Society for Composites 2008, Memphis, TN, United States, 9/9/08.
Nguyen NQ, Gupta N. Encapsulations of micro-optical sensors for applications of stress management. In American Society for Composites - 23rd Technical Conference of the American Society for Composites 2008. Vol. 1. 2008. p. 323-335
Nguyen, N. Q. ; Gupta, Nikhil. / Encapsulations of micro-optical sensors for applications of stress management. American Society for Composites - 23rd Technical Conference of the American Society for Composites 2008. Vol. 1 2008. pp. 323-335
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