Abstract
Embedded fiber-optic strain sensing networks for airworthy assessment of operational Unmanned Aerial Vehicles (UAVs) are presented. Sensing is based on in-flight fiber Bragg grating technology, as well as on on-ground Rayleighbackscattering distributed strain sensing. While the in-flight instrumentation monitors loads, looking for excessive values, the Rayleigh-based technique is used for high spatial resolution strain distribution along the UAV wings, under prescribed loading. Consistency of measurements over time indicates structural integrity. Simultaneous strain measurements using both distributed Rayleigh and fiber Bragg gratings, on the same fiber, promises to combine high spatial resolution, though practically static measurements with dynamic, though discrete ones.
Original language | English |
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Title of host publication | 24th International Conference on Optical Fibre Sensors, OFS 2015 |
Editors | Hypolito Jose Kalinowski, Jose Luis Fabris, Wojtek J. Bock |
Publisher | SPIE |
ISBN (Electronic) | 9781628418392 |
DOIs | |
State | Published - 2015 |
Externally published | Yes |
Event | 24th International Conference on Optical Fibre Sensors, OFS 2015 - Curitiba, Brazil Duration: 28 Sep 2015 → 2 Oct 2015 |
Publication series
Name | Proceedings of SPIE - The International Society for Optical Engineering |
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Volume | 9634 |
ISSN (Print) | 0277-786X |
ISSN (Electronic) | 1996-756X |
Conference
Conference | 24th International Conference on Optical Fibre Sensors, OFS 2015 |
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Country/Territory | Brazil |
City | Curitiba |
Period | 28/09/15 → 2/10/15 |
Bibliographical note
Publisher Copyright:© 2015 SPIE.
Keywords
- Fiber bragg grating
- Fiber optic sensors
- Rayleigh backscattering
- Structural health monitoring