Acoustic emission detection for composite damage assessment using embedded ordinary single-mode fiber optic interferometric sensors

Liu, Kexing; Ferguson, Suzanne M.; McEwen, Keith; Tapanes, Edward; Measures, Raymond M.

doi:10.1117/12.24861

Cited by 15 publications

(9 citation statements)

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“…We have demonstrated that it is possible to produce localized semireflective-mirrors[1 7]. Furthermore, this was achieved in the case of a Bow-Tie polarization maintaining optical fiber, needed to avoid signal fading through strain induced birefringence [15]. The results of our characterization of the Fabry-Perot fiber optic sensor are presented in Table 3.…”

Section: Utias Fiber Optic Smart Structures Programmentioning

confidence: 94%

“…Nevertheless, the ease with which active phase demodulated Michelson fiber optic sensors can be built and used for small transient strain waves has prompted us to frequently employ them to detect low amplitude, high frequency acoustic emission within composites [15]. The fiber optic Fabry-Perot interferometric sensor, shown in figure 3, has the distinct advantages of forming a well localized, single optical fiber sensor with essentially the same high strain sensitivity as the Michelson sensor without requiring phase preservation across any structural connector [16].…”

Section: Utias Fiber Optic Smart Structures Programmentioning

confidence: 99%

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<title>Fiber optic sensor considerations and developments for smart structures</title>

Measures

1991

SPIE Proceedings

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The potential suitability of the Fabry-Perot and Bragg grating fiber optic sensors will be considered against a set of criteria for practical use with Smart Structures. Particular attention will be given to a number of key issues, such as: interrupt immunity, apparent strain, sensitivity, response tune, structural integration, optical inteifacing ininitnalperturbation and sensorpeifonnance lifetime. Some of our development of fiber optic sensors for use with Smart Structures will he reviewed in the light of these considerations.

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Section: Utias Fiber Optic Smart Structures Programmentioning

confidence: 94%

Section: Utias Fiber Optic Smart Structures Programmentioning

confidence: 99%

<title>Fiber optic sensor considerations and developments for smart structures</title>

Measures

1991

SPIE Proceedings

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“…These fiber sensors are used to detect the ultrasonic energy after it has impinged the structure. There has been some previous research on the detection of acoustic waves in solids using fiber optic sensors (Alcoz et al, 1990;Liu et al, 1990;Liu, 1991;Nadarajah et al, 1995) that are embedded into the solid host materials. The interaction between the fiber optic sensor and the matrix materials has been developed (Namihira, 1985) and the issues associated with the effect of the fiber's polymer coating has been recently addressed as well (Yuan et al, 2004(Yuan et al, , 2005).…”

Section: Introductionmentioning

confidence: 99%

Interaction Model for a Hi-Bi Fiber Optic Ultrasonic Sensor and the Host Material

Yuan

Zhang

2007

Journal of Intelligent Material Systems and Structures

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A dynamic model of an optical fiber segment with polymer coating, which is embedded in concrete, is proposed for evaluating the response of the ultrasonic stress wave in the host material (matrix). The photo-elastic response in the optical fiber and the associated birefringence-induced phase changes are analyzed. The relationship between fiber optic sensor phase change and the ultrasonic wave behavior in the matrix is established.

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“…[1]. In the early development stage, FBG sensors were mainly applied to usage monitoring such as strain and temperature sensing, but the application fields are currently expanding to damage detection, such as impact and fracture monitoring [2,3].…”

Section: Introductionmentioning

confidence: 99%

Stabilized interrogation and multiplexing techniques for fibre Bragg grating vibration sensors

Bang

Jun

Kim

2005

Meas. Sci. Technol.

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We demonstrated a simple interrogation system for multiplexed fiber Bragg grating sensors with high frequency range. A tunable Fabry-Perot filter with narrow free spectral range (FSR) was used to simplify the multiplexing demodulator for FBG vibration sensors. A stabilization controlling unit was also developed for the maintenance of maximum sensitivity of the sensors. In order to verify the performance of the stabilization control unit, we measured the sensitivity of the FBG sensor by changing a environmental temperature, and the system showed an average sensitivity of 2.5 / RMS n Hz ε for a stabilization controlled case. Finally, multi-points vibration tests using in-line FBG sensors were conducted to validate the multiplexing performance of the FBG system.

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Acoustic emission detection for composite damage assessment using embedded ordinary single-mode fiber optic interferometric sensors

Cited by 15 publications

References 0 publications

<title>Fiber optic sensor considerations and developments for smart structures</title>

<title>Fiber optic sensor considerations and developments for smart structures</title>

Interaction Model for a Hi-Bi Fiber Optic Ultrasonic Sensor and the Host Material

Stabilized interrogation and multiplexing techniques for fibre Bragg grating vibration sensors

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