Coherent Fiber-Optic Sensor for Ultra-Acoustic Crack Emissions

Coherent Fiber-Optic Sensor for Ultra-Acoustic Crack Emissions

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 level...

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Bibliographic Details
Main Authors: Ilaria Di Luch, Maddalena Ferrario, Davide Fumagalli, Michele Carboni, Mario Martinelli
Format: Article
Language:English
Published: MDPI AG 2021-07-01
Series:Sensors
Subjects:
fiber optic sensor
guided waves
acoustic emission
fatigue crack propagation
Online Access:https://www.mdpi.com/1424-8220/21/14/4674

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