Acoustic emission monitoring using a polarimetric single mode optical fiber sensor

Steve Vandenplas; Jean-Michel Papy; Martine Wevers; Sabine Van Huffel; Daniele Inaudi

doi:10.1117/12.623689

23 May 2005 Acoustic emission monitoring using a polarimetric single mode optical fiber sensor

Steve Vandenplas, Jean-Michel Papy, Martine Wevers, Sabine Van Huffel, Daniele Inaudi

Proceedings Volume 5855, 17th International Conference on Optical Fibre Sensors; (2005) https://doi.org/10.1117/12.623689
Event: 17th International Conference on Optical Fibre Sensors, 2005, Bruges, Belgium

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).

Citation Download Citation

Steve Vandenplas, Jean-Michel Papy, Martine Wevers, Sabine Van Huffel, and Daniele Inaudi "Acoustic emission monitoring using a polarimetric single mode optical fiber sensor", Proc. SPIE 5855, 17th International Conference on Optical Fibre Sensors, (23 May 2005); https://doi.org/10.1117/12.623689

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