Share Email Print
cover

Proceedings Paper

Modeling, optimization, and experimental validation of a resonant piezo-optical ring sensor for enhanced active and passive structural health monitoring
Author(s): Erik Frankforter; Jingjing Bao; Bin Lin; Victor Giurgiutiu
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

A mechanical resonant piezo-optical ring sensor was studied, designed to selectively enhance the response of piezoelectric wafer active sensors (PWAS) and fiber Bragg grating (FBG) sensors. The frequency characteristics of the ring sensor were modeled through modal and harmonic analyses. The models were used to guide the experimentation, serving as a basis for comparison and implementation. Pitch-catch, resonance, and acoustic emission (AE) experiments were performed to compare the performance of the ring sensor to plate-mounted PWAS and FBG. Factors relating to optimal in-service implementation, particularly symmetric placement of FBG and PWAS, were investigated. It was found that the ring sensor was capable of amplifying an incoming Lamb wave signal. This was applied to AE experiments, where selective frequencies were amplified such that the time-domain signal had a larger amplitude response.

Paper Details

Date Published: 27 March 2015
PDF: 10 pages
Proc. SPIE 9436, Smart Sensor Phenomena, Technology, Networks, and Systems Integration 2015, 94360B (27 March 2015); doi: 10.1117/12.2084457
Show Author Affiliations
Erik Frankforter, Univ. of South Carolina (United States)
Jingjing Bao, Univ. of South Carolina (United States)
Bin Lin, Univ. of South Carolina (United States)
Victor Giurgiutiu, Univ. of South Carolina (United States)


Published in SPIE Proceedings Vol. 9436:
Smart Sensor Phenomena, Technology, Networks, and Systems Integration 2015
Kara J. Peters, Editor(s)

© SPIE. Terms of Use
Back to Top