Smart autonomous wireless acoustic sensors for aeronautical SHM applications

Férin, Guillaume; Muralidharan, Yuvashankar; Mesbah, Naoufal; Chatain, Pascal; Bantignies, Claire; Khanh, Hung Le; Flesch, Etienne; An, Ning

doi:10.1109/ultsym.2015.0250

Cited by 4 publications

(4 citation statements)

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“…The role of electrical impedance matching is crucial in SHM integrated system design, as the operating bandwidth is continuously increasing and different types of AE sensors are in use; with this aim, Rathod et al published a recent paper [ 101 ]. Poor electronic design can lead to a loss of information on the impact event, as reported by Qing [ 48 ], where several approaches are presented to process the signals generated by a set of sensors; other relevant works for the electronic design developments of sensors network are the Match-x project [ 102 ] and the work of Ferin [ 103 ]. A useful reference paper for AFE designers was published by Beatie [ 104 ], where an analysis of important electronics characteristics of the AFE and their influence on the overall impact detection performance is reported.…”

Section: Influence Of Front-end Electronics On Impact Detection and Localizationmentioning

confidence: 99%

“…Ferin et al [ 103 ] presented a new hardware development of a highly versatile energy autonomous acoustic sensor node that is an element of an intelligent wireless network; this node architecture is capable of executing various ultrasonic inspection algorithms. The energy harvester was the conversion from mechanical vibrations into electrical energy stored in a supercapacitor with a high charge capacity/volume ratio.…”

Section: Hardware Developments Of Wired and Wireless Sensor Network (Wsns) For Shm And Validation Testsmentioning

confidence: 99%

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Ultrasonic Guided-Waves Sensors and Integrated Structural Health Monitoring Systems for Impact Detection and Localization: A Review

Capineri

Bulletti

2021

Sensors

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This review article is focused on the analysis of the state of the art of sensors for guided ultrasonic waves for the detection and localization of impacts for structural health monitoring (SHM). The recent developments in sensor technologies are then reported and discussed through the many references in recent scientific literature. The physical phenomena that are related to impact event and the related main physical quantities are then introduced to discuss their importance in the development of the hardware and software components for SHM systems. An important aspect of the article is the description of the different ultrasonic sensor technologies that are currently present in the literature and what advantages and disadvantages they could bring in relation to the various phenomena investigated. In this context, the analysis of the front-end electronics is deepened, the type of data transmission both in terms of wired and wireless technology and of online and offline signal processing. The integration aspects of sensors for the creation of networks with autonomous nodes with the possibility of powering through energy harvesting devices and the embedded processing capacity is also studied. Finally, the emerging sector of processing techniques using deep learning and artificial intelligence concludes the review by indicating the potential for the detection and autonomous characterization of the impacts.

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Section: Influence Of Front-end Electronics On Impact Detection and Localizationmentioning

confidence: 99%

Section: Hardware Developments Of Wired and Wireless Sensor Network (Wsns) For Shm And Validation Testsmentioning

confidence: 99%

Ultrasonic Guided-Waves Sensors and Integrated Structural Health Monitoring Systems for Impact Detection and Localization: A Review

Capineri

Bulletti

2021

Sensors

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“…Despite the advantages of composite structures, composite structures are exposed to high risks of structural failures. Defects such as cracks or delaminations can easily occur in composite structures from repetitive loads or sudden impacts [4][5][6]. These kinds of defects can evolve into structural failures, which can cause catastrophic accidents [7,8].…”

Section: Introductionmentioning

confidence: 99%

Strain measurements of an aircraft wing using embedded CNT fiber sensor and wireless SHM sensor node

Park¹,

Lee²

2022

Funct. Compos. Struct.

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Composite material-based aircraft structures have attracted attention due to their lightweight and superior mechanical properties. However, composite structures have a high risk of structural failures when damages occur due to loadings or impacts. Therefore, consistent structural health monitoring (SHM) is needed to ensure the structural integrity and safety of the aircraft. Various methods of sensor installation and measurement systems were developed for the implementation of SHM in aircraft structures. In this research, the carbon nanotube (CNT) fiber sensor was optimized by comparing the different configurations such as carbon black concentration, PU layer, and dip-coating iterations. Glass fiber reinforced plastic (GFRP) skin with embedded CNT fiber sensor was implemented on a 1700 mm long right main wing. Strain measurements were performed during static loadings through the wireless SHM sensor node. Strain measurement due to resistance change during temperature decrease was also performed to investigate the effect of temperature on the CNT fiber sensor. The CNT fiber sensor showed comparable strain measurement results to conventional strain gauge strain measurements. Consequently, the CNT fiber sensor and the wireless SHM sensor node showed new possibilities for embedded sensor applications and real-time SHM implementations for aircraft structures.

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“…Continuous impact monitoring systems have the purpose of detecting events capable of generating damage to critical structures or components and therefore have an interest in the SHM field [1][2][3][4][5][6]. These systems are rapidly evolving to meet the needs of the aerospace, automotive, and energy conversion and transportation industries [7][8][9]; the evolution consists in transforming the electronic laboratory systems towards distributed architectures of autonomous sensor nodes installed on the structure to be monitored [10].…”

Section: Introductionmentioning

confidence: 99%

A Versatile Analog Electronic Interface for Piezoelectric Sensors Used for Impacts Detection and Positioning in Structural Health Monitoring (SHM) Systems

Capineri

Bulletti

2021

Electronics

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Continuous monitoring of mechanical impacts is one of the goals of modern SHM systems using a sensor network installed on a structure. For the evaluation of the impact position, there are generally applied triangulation techniques based on the estimation of the differential time of arrival (DToA). The signals generated by impacts are multimodal, dispersive Lamb waves propagating in the plate-like structure. Symmetrical S0 and antisymmetrical A0 Lamb waves are both generated by impact events with different velocities and energies. The discrimination of these two modes is an advantage for impact positioning and characterization. The faster S0 is less influenced by multiple path signal overlapping and is also less dispersive, but its amplitude is generally 40–80 dB lower than the amplitude of the A0 mode. The latter has an amplitude related to the impact energy, while S0 amplitude is related to the impact velocity and has higher frequency spectral content. For these reasons, the analog front-end (AFE) design is crucial to preserve the information of the impact event, and at the same time, the overall signal chain must be optimized. Large dynamic range ADCs with high resolution (at least 12-bit) are generally required for processing these signals to retrieve the DToA information found in the full signal spectrum, typically from 20 kHz to 500 kHz. A solution explored in this work is the design of a versatile analog front-end capable of matching the different types of piezoelectric sensors used for impact monitoring (piezoceramic, piezocomposite or piezopolymer) in a sensor node. The analog front-end interface has a programmable attenuator and three selectable configurations with different gain and bandwidth to optimize the signal-to-noise ratio and distortion of the selected Lamb wave mode. This interface is realized as a module compatible with the I/O of a 16 channels real-time electronic system for SHM previously developed by the authors. High-frequency components up to 270 kHz and lower-frequency components of the received signals are separated by different channels and generate high signal-to-noise ratio signals that can be easily treated by digital signal processing using a single central unit board with ADC and FPGA.

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Smart autonomous wireless acoustic sensors for aeronautical SHM applications

Cited by 4 publications

References 1 publication

Ultrasonic Guided-Waves Sensors and Integrated Structural Health Monitoring Systems for Impact Detection and Localization: A Review

Ultrasonic Guided-Waves Sensors and Integrated Structural Health Monitoring Systems for Impact Detection and Localization: A Review

Strain measurements of an aircraft wing using embedded CNT fiber sensor and wireless SHM sensor node

A Versatile Analog Electronic Interface for Piezoelectric Sensors Used for Impacts Detection and Positioning in Structural Health Monitoring (SHM) Systems

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