کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5027835 1470638 2017 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Acoustic Emission Detection and Characterisation Using Networked FBG Sensors
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Acoustic Emission Detection and Characterisation Using Networked FBG Sensors
چکیده انگلیسی

Acoustic Emission (AE) events are often generated when a material undergoes irreversible changes to its internal structure and thus provides a basis for the detection of damage in structural components. A method for AE localisation featuring a single laser source coupled to three optical fibre Bragg grating sensors is described and experimentally demonstrated on a thin aluminium panel. The localisation algorithm analyses the time domain waveform and the corresponding frequency spectrum to determine the time of arrival and velocity of an AE signal from which its epicentre is estimated using a grid search. Experimental results are shown to demonstrate the accuracy of the method.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Procedia Engineering - Volume 188, 2017, Pages 440-447
نویسندگان
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