Automated system for registration, processing and analysis of acoustic emission signals under deformation and fracture

Panin, S. V.; Biakov, A.; Grenke, V.V.; Шакиров, И. В.

doi:10.1109/ifost.2008.4602845

Cited by 3 publications

(2 citation statements)

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“…In the third phase, the analysis of the acquired data is performed according to the processing procedure described in [7]- [9]. In particular the features of the AE signal ( Fig.2) are evaluated and the intensity of the structure damage is computed [16].…”

Section: Acquisition and Processing System Of Aesmentioning

confidence: 99%

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Acoustic emission monitoring of damage concrete structures by multi-triggered acquisition system

Lamonaca

Carrozzini

Grimaldi

et al. 2012

2012 IEEE International Instrumentation and Measurement Technology Conference Proceedings

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The paper deals with the damage monitoring of concrete material structures by analysing the crack evolution by means of Acoustic Emission (AE). This analysis requires multi transducers, high sampling frequency and long time of observation. Triggered acquisition modality needs to avoid the saving of big size digitalized data. Due to the propagation in the concrete, the AE reduces its amplitude during the path, and, consequently, some events can be loosed due to the intensity lower than the trigger level. The proposal consists in the introduction of the Flat Amplifier and Trigger generator block (FAT) in order to generate a logical trigger when the AE is detected by one of the transducers. The experimental validation to assess the effectiveness of the acquisition system set up is performed according with the standard for AE in the concrete.

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Section: Acquisition and Processing System Of Aesmentioning

confidence: 99%

“…The characteristics of the AE signal taken into consideration [7] are: (i) frequency and amplitude of the bigger peak, (ii) frequencies and amplitudes of the other peaks, (iii) life time, (iv) energy [8], and P-wave, to localize micro crack 9], [10].…”

Section: Introductionmentioning

confidence: 99%

Acoustic emission monitoring of damage concrete structures by multi-triggered acquisition system

Lamonaca

Carrozzini

Grimaldi

et al. 2012

2012 IEEE International Instrumentation and Measurement Technology Conference Proceedings

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show abstract

Investigation of deformation and fracture by acoustic emission data, correlation of digital images, and strain measurements

et al. 2012

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Improved Accuracy of Damage Index Evaluation in Concrete Structures by Simultaneous Hardware Triggering

Lamonaca¹,

Carrozzini²,

Grimaldi³

et al. 2014

Metrology and Measurement Systems

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Non-invasive damage monitoring of concrete structures by means of Acoustic Emission (AE) requires multitransducers, multi-channel acquisition, high sampling frequency and long observation time. Owing to its propagation in concrete, the signal from AE reduces its amplitude during the propagation, and, consequently, some events can be lost due to lower signal intensity than the trigger level set on one sensor only. The innovative proposal discussed in the paper consists in the introduction of a Flat Amplifier and Trigger generator block (FAT) in order to generate a logical trigger when the AE is detected by any transducer. Experimental tests confirm the effectiveness of the FAT to acquire all the AE events and to increase the evaluation accuracy of damage indexes.

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Automated system for registration, processing and analysis of acoustic emission signals under deformation and fracture

Cited by 3 publications

References 0 publications

Acoustic emission monitoring of damage concrete structures by multi-triggered acquisition system

Acoustic emission monitoring of damage concrete structures by multi-triggered acquisition system

Investigation of deformation and fracture by acoustic emission data, correlation of digital images, and strain measurements

Improved Accuracy of Damage Index Evaluation in Concrete Structures by Simultaneous Hardware Triggering

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