Smart optical fiber sensor for impact localization on planar structures

Ribeiro, Fabiano L.; Possetti, Gustavo Rafael Collere; Fabris, José Luí­s; Müller, Márcia

doi:10.1109/imoc.2013.6646418

Cited by 3 publications

(3 citation statements)

References 13 publications

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“…With the development of artificial intelligent technology, intelligent algorithms were employed for impact source localization. Riberiro et al [10] respectively used FBG sensors and the neural network method to obtain the location of the impact source on composite structures. Lu et al [11] proposed support vector regression to determine the impact source on a composite structure using FBGs.…”

Section: Introductionmentioning

confidence: 99%

Development of an FBG Sensor Array for Multi-Impact Source Localization on CFRP Structures

Jiang

Sai

Geng

et al. 2016

Sensors

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We proposed and studied an impact detection system based on a fiber Bragg grating (FBG) sensor array and multiple signal classification (MUSIC) algorithm to determine the location and the number of low velocity impacts on a carbon fiber-reinforced polymer (CFRP) plate. A FBG linear array, consisting of seven FBG sensors, was used for detecting the ultrasonic signals from impacts. The edge-filter method was employed for signal demodulation. Shannon wavelet transform was used to extract narrow band signals from the impacts. The Gerschgorin disc theorem was used for estimating the number of impacts. We used the MUSIC algorithm to obtain the coordinates of multi-impacts. The impact detection system was tested on a 500 mm × 500 mm × 1.5 mm CFRP plate. The results show that the maximum error and average error of the multi-impacts’ localization are 9.2 mm and 7.4 mm, respectively.

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Section: Introductionmentioning

confidence: 99%

Development of an FBG Sensor Array for Multi-Impact Source Localization on CFRP Structures

Jiang

Sai

Geng

et al. 2016

Sensors

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“…When multiple impact events simultaneously appear, the mixed impact signals of different impact sources need to be distinguished for obtaining arrival time of impact signals and locating multi-impact. Riberiro et al [10] and Jang et al [11] used FBG sensors and the neural network method to obtain the location of impact source on the composite structure, respectively. Lu et al [12] proposed support vector regression to determine impact source on the composite structure by using FBGs.…”

Section: Introductionmentioning

confidence: 99%

Low velocity impact localization system using FBG array and MVDR beamforming algorithm

et al. 2015

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This paper proposes an impact localization system based on the fiber Bragg grating (FBG) array and minimum variance distortionless response (MVDR) beamforming algorithm. The linear FBG array, which contains seven FBG sensors, is used for detecting impact signals. Morlet wavelet transform is applied for extracting narrow-band signals of impact signals. According to the MVDR beamforming algorithm, the system realizes single-impact and multi-impact localizations. The localization system is verified on a 500 mm×500 mm×2 mm carbon fiber reinforced polymer (CFRP) plate for single-impact and multi-impact localizations. The average locating error and the maximum locating error are 6.8 mm and 9.9 mm, respectively.

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“…Lu et al [8] applied least squares support vector machine to locate impact source on a composite plate. Ribeiro et al [9] used FBG sensors and neural network method to obtain the location of impact source on composite structures. These methods need large train samples.…”

Section: Introductionmentioning

confidence: 99%

Composite plate low energy impact localization system based on FBG sensing network and hybrid algorithm

Sai

Jiang

Sui

et al. 2015

Optical Fiber Technology

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Smart optical fiber sensor for impact localization on planar structures

Cited by 3 publications

References 13 publications

Development of an FBG Sensor Array for Multi-Impact Source Localization on CFRP Structures

Development of an FBG Sensor Array for Multi-Impact Source Localization on CFRP Structures

Low velocity impact localization system using FBG array and MVDR beamforming algorithm

Composite plate low energy impact localization system based on FBG sensing network and hybrid algorithm

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