Application of Fiber Bragg Grating Acoustic Emission Sensors in Thin Polymer-Bonded Explosives

Fu, Tao; Peng, Wei; Han, Xiao-Le; Liu, Qingbo

doi:10.3390/s18113778

Cited by 13 publications

(9 citation statements)

References 24 publications

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“…Tao Fu et.al, they worked with different sensor such as two dimensional sensor networks, three dimensional sensor network. [1]. Problem can be observed from this paper in approaching of different network layer under water is difficult.…”

Section: Introductionmentioning

confidence: 91%

A Comprehensive Study on Highly Sensitive Photonics Based Acoustic Sensors for Under Water Applications

Kumar¹,

Sreerangaraju²

2018

EAI Endorsed Transactions on Smart Cities

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By referring few researcher works which is related to the work of optical sensor and able to detect the acoustic signal, this review paper provides the detailed study of acoustic signal in under water. Researchers has worked with the optical sensor and emerged as great promising sensing device. From various research papers it is observed that the detection of acoustic signal is done with the help of various optical sensors. The various sensors are fiber bragg grating (FBG) sensor, fiber optic interferometric sensor and Mach zehnder interferometer (MZI) sensor. So this review paper covers all these sensors and their application with a particular focus on the different structure of optical sensor. The structure of the various sensors and their application is discussed from the different research paper.The overall work is reported and corresponding result is demonstrated. From the demonstrated work it has been observed that with good quality and proper sensitivity in all optical sensors are able to detect the acoustic signal for under water due to their compact size and able to provide accurate results.

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Section: Introductionmentioning

confidence: 91%

A Comprehensive Study on Highly Sensitive Photonics Based Acoustic Sensors for Under Water Applications

Kumar¹,

Sreerangaraju²

2018

EAI Endorsed Transactions on Smart Cities

View full text Add to dashboard Cite

show abstract

“…In [ 13 , 14 , 15 ], FBG sensors with high sensitivity over broad bandwidths were proposed for AE detection in composite plates. AE generated by crack formation in an aluminum panel was investigated through a FBG-based sensor in [ 16 ], while in [ 17 ], the performances of a FBG AE sensor on the surface of a thin polymer-bonded explosive (PBX) material were analyzed.…”

Section: The Coherent Fiber Optic Sensormentioning

confidence: 99%

Coherent Fiber-Optic Sensor for Ultra-Acoustic Crack Emissions

Luch

Ferrario²,

Fumagalli

et al. 2021

Sensors

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A coherent optical fiber sensor with adequate sensitivity for detecting the acoustic emission (AE) during the propagation of a crack in a ferrous material is presented. The proposed fiber optic sensor is successfully compared in terms of the SNR (Signal to Noise Ratio) and detectable AE energy levels to commercially available AE piezo-transducers sensors and is proven to be an effective and advantageous alternative for sensing and monitoring fatigue damage in structural applications.

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“…Giurgiutiu directly embedded fiber gratings into aerospace composite materials for monitoring their structural health [14], however, embedding the sensors complicates the composite manufacturing, and the monitoring strategy must be foreseen before the manufacturing process. Chen Ru et al used FBG to monitor the stress and strain in AM process in real time [15]; Liu et al used the phase shifted fiber Bragg grating (PS-FBG) to monitor composite materials for long-term use [16]; Tao et al directly used the FBG acoustic emission sensor to monitor the health conditions of the polymer-bonded explosive (PBX) cracks in the narrow space of polymer explosives [17]; Manterola et al used FBG as the AE sensor to treat the cracks that appeared at the structural rigid bonding head for a long time [18]; Leitao et al developed FBG intensity sensors and the sensor was successfully used in the monitoring of central arterial pressure changes over a long period of time [19].…”

Section: Introductionmentioning

confidence: 99%

Design Optimization of Sensitivity-Enhanced Structure for Fiber Bragg Grating Acoustic Emission Sensor Based on Additive Manufacturing

Liu

Xia

2022

Sensors

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A four-loop shaped structure of fiber Bragg grating (FBG) acoustic emission (AE) sensor based on additive manufacturing (AM) technology is proposed in the letter. The finite element analysis (FEA) method was used to model and analyze the sensor structure. We aimed at improving the sensitivity, the static load analysis, and the dynamic response analysis of the normal FBG acoustic emission sensor and the FBG AE sensor with improved structure parameters. We constructed the FBG AE sensor experimental system based on a narrowband laser demodulation method and test on real acoustic emission signals. The results demonstrated that the response sensitivity of the FBG acoustic emission sensor was 1.47 times higher than the sensitivity of the normal FBG sensor. The sensitivity coefficient of PLA-AE-FBG2 sensor was 3.057, and that of PLA-AE-FBG1 was 2.0702. Through structural design and parameter optimization, the sensitivity and stability of the FBG AE sensor are improved. The four-loop shaped sensor is more suitable for the health monitoring in fields such as aero-engine blade, micro-crack of structure, and crack growth in bonded joints. While ensuring the sensing characteristics, sensitivity, and stability of the four-loop shaped sensor have been enhanced. It is possible to apply the FBG AE sensor in some complex engineering environments.

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Application of Fiber Bragg Grating Acoustic Emission Sensors in Thin Polymer-Bonded Explosives

Cited by 13 publications

References 24 publications

A Comprehensive Study on Highly Sensitive Photonics Based Acoustic Sensors for Under Water Applications

A Comprehensive Study on Highly Sensitive Photonics Based Acoustic Sensors for Under Water Applications

Coherent Fiber-Optic Sensor for Ultra-Acoustic Crack Emissions

Design Optimization of Sensitivity-Enhanced Structure for Fiber Bragg Grating Acoustic Emission Sensor Based on Additive Manufacturing

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