Back to Search
Start Over
Metal-coated high-temperature strain optical fiber sensor based on cascaded air-bubble FPI-FBG structure.
- Source :
-
Optics express [Opt Express] 2023 May 08; Vol. 31 (10), pp. 16795-16811. - Publication Year :
- 2023
-
Abstract
- Metal coatings can protect the fragile optical fiber sensors and extend their life in harsh environments. However, simultaneous high-temperature strain sensing in a metal-coated optical fiber remains relatively unexplored. In this study, a nickel-coated fiber Bragg grating (FBG) cascaded with an air bubble cavity Fabry-Perot interferometer (FPI) fiber optic sensor was developed for simultaneous high temperature and strain sensing. The sensor was successfully tested at 545 °C for 0-1000 µɛ, and the characteristic matrix was used to decouple temperature and strain. The metal layer allows easy attachment to metal surfaces that operate at high temperatures, enabling sensor-object integration. As a result, the metal-coated cascaded optical fiber sensor has the potential to be used in real-world structural health monitoring.
Details
- Language :
- English
- ISSN :
- 1094-4087
- Volume :
- 31
- Issue :
- 10
- Database :
- MEDLINE
- Journal :
- Optics express
- Publication Type :
- Academic Journal
- Accession number :
- 37157751
- Full Text :
- https://doi.org/10.1364/OE.489420