TY - GEN
T1 - Fiber optic acoustic emission shm system for condition management of aircraft structures
AU - Mendoza, Edgar
AU - Prohaska, John
AU - Kempen, Connie
AU - Esterkin, Yan
AU - Sun, Sunjian
AU - Krishnaswamy, Sridhar
N1 - Publisher Copyright:
Copyright 2015. Used by the Society of the Advancement of Material and Process Engineering with permission.
PY - 2015
Y1 - 2015
N2 - Acoustic emission is the leading structural health monitoring technique use for the early warning detection of structural damage in advanced aircraft structures associated with impacts, fatigue, cracks, fractures, corrosion, and delaminations. This paper describes progress towards the development and testing of a distributed fiber optic acoustic emission sensor (FAESense™) system based on the use of a novel adaptive and dynamic reconfigurable two-wave mixing (TWM) interferometer produced on a photonic integrated circuit (PIC) microchip. The FAESense system uses a distributed array of miniature and minimally invasive fiber Bragg grating sensors, embedded or surface mounted on a composite or metal aircraft structure, used for the detection and localization of acoustic emission events associated with structural damage. The FAESense system process data in the time domain and frequency domain in real time enabling the detection of acoustic emission events in the presence of unwanted noise. The TWM interferometer interrogates the status of the array of FBG sensors and demodulates the small wavelength shifts of the FBG sensors associated with the detection of acoustic emission waves in the presence of quasi-static strain and temperature variation effects. The FAESense™ system represents a new, robust and reliable, technology for potential use in structural health monitoring applications in aviation and aerospace, civil engineering, oil and gas, renewable energy, biomedicine, and security.
AB - Acoustic emission is the leading structural health monitoring technique use for the early warning detection of structural damage in advanced aircraft structures associated with impacts, fatigue, cracks, fractures, corrosion, and delaminations. This paper describes progress towards the development and testing of a distributed fiber optic acoustic emission sensor (FAESense™) system based on the use of a novel adaptive and dynamic reconfigurable two-wave mixing (TWM) interferometer produced on a photonic integrated circuit (PIC) microchip. The FAESense system uses a distributed array of miniature and minimally invasive fiber Bragg grating sensors, embedded or surface mounted on a composite or metal aircraft structure, used for the detection and localization of acoustic emission events associated with structural damage. The FAESense system process data in the time domain and frequency domain in real time enabling the detection of acoustic emission events in the presence of unwanted noise. The TWM interferometer interrogates the status of the array of FBG sensors and demodulates the small wavelength shifts of the FBG sensors associated with the detection of acoustic emission waves in the presence of quasi-static strain and temperature variation effects. The FAESense™ system represents a new, robust and reliable, technology for potential use in structural health monitoring applications in aviation and aerospace, civil engineering, oil and gas, renewable energy, biomedicine, and security.
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M3 - Conference contribution
AN - SCOPUS:84987605265
T3 - International SAMPE Technical Conference
BT - SAMPE Baltimore 2015 Conference and Exhibition
PB - Soc. for the Advancement of Material and Process Engineering
T2 - SAMPE Baltimore 2015 Conference and Exhibition
Y2 - 18 May 2015 through 21 May 2015
ER -
