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Linear location of acoustic emission using a pair of novel fibre optic sensors

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, , Citation Rongsheng Chen et al 2005 J. Phys.: Conf. Ser. 15 232 DOI 10.1088/1742-6596/15/1/039

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1 Sensors and Composites Group, Cranfield University, Shrivenham, Swindon, SN6 8LA, UK

2 Physical Acoustics Ltd., Over, Cambridge, CB4 5QE, UK

3 National Grid House, Warwick Technology Park, Gallows Hill, Warwick CV34 6DA, UK

4 37 Hersham Road, Walton on Thames, Surrey KT12 1LE, UK

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1742-6596/15/1/232

Abstract

A novel fibre optic sensor system has been developed to enable the linear location of acoustic emission. The demonstration of linear location of acoustic emission was conducted using a pair of serial multiplexed fibre coupler-based acoustic emission (AE) sensors in conjunction with a single light source. The simulated AE source, via a pencil lead-break test, was located to within ± 5mm.

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10.1088/1742-6596/15/1/039