B7.3 - Distributed Fibre Optic Acoustic and Vibration Sensors for Industrial Monitoring Applications
- Event
- AMA Conferences 2017
2017-05-30 - 2017-06-01
Nürnberg, Germany - Band
- Proceedings Sensor 2017
- Chapter
- B7 - Distributes and Fiber Bragg Grating Sensing II
- Author(s)
- K. Hicke, M. Hussels, R. Eisermann, S. Chruseicki, K. Krebber - BAM Bundesanstalt für Materialforschung und -prüfung, Berlin (Germany)
- Pages
- 274 - 279
- DOI
- 10.5162/sensor2017/B7.3
- ISBN
- 978-3-9816876-4-4
- Price
- free
Abstract
We investigate the usability of distributed fibre optic acoustic sensing (DAS) for innovative and advanced monitoring applications in industrial and civil infrastructure installations. In this paper, we report on our ongoing application-oriented research activities regarding the utilization of DAS based on coherent optical time-domain reflectometry (C-OTDR) for condition monitoring of a variety of infrastructures. Specifically, our research presented here aims at acoustic condition monitoring of and
fault detection in pipelines and industrial piping systems, at acoustic condition monitoring of rollers in industrial conveyor belt installations, and at acoustic condition monitoring of and threat detection in extensive submarine power cables, respectively. Furthermore, we show a method to mitigate the effect of sensitivity fading of C-OTDR based DAS due to unstable environmental conditions via the modification of the sensor fibre. This can help to provide a continuous adequate sensor functionality for a number of different industrial monitoring applications.