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Proceedings Paper

Acoustic emission monitoring using a polarimetric single mode optical fiber sensor
Author(s): Steve Vandenplas; Jean-Michel Papy; Martine Wevers; Sabine Van Huffel; Daniele Inaudi
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Paper Abstract

Growing damage in various materials and constructions often causes high-energy high-frequency acoustic waves. By monitoring these so called 'acoustic emission' events, growing damage can be detected in an early stage before the damage results in catastrophic failure or loss of material functionality. For monitoring large composite structures, an optical acoustic emission monitoring system is presented. The sensing part of the sensor consists of a single mode fiber that is used in a polarimetric configuration. This sensor is combined with transient signal detection techniques (filtering, frame-to-frame analysis, recursive noise estimation) to detect perturbations of the light in the sensor. In this paper the acoustic monitoring capabilities of the system are demonstrated by carrying out bending tests on a short test model for an Intelligent Power and Data Transmitting Composite Coiled Tubing (PDT-coil).

Paper Details

Date Published: 23 May 2005
PDF: 4 pages
Proc. SPIE 5855, 17th International Conference on Optical Fibre Sensors, (23 May 2005); doi: 10.1117/12.623689
Show Author Affiliations
Steve Vandenplas, Katholieke Univ. Leuven (Belgium)
Jean-Michel Papy, Katholieke Univ. Leuven (Belgium)
Martine Wevers, Katholieke Univ. Leuven (Belgium)
Sabine Van Huffel, Katholieke Univ. Leuven (Belgium)
Daniele Inaudi, SMARTEC SA (Switzerland)

Published in SPIE Proceedings Vol. 5855:
17th International Conference on Optical Fibre Sensors
Marc Voet; Reinhardt Willsch; Wolfgang Ecke; Julian Jones; Brian Culshaw, Editor(s)

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