High-Order Fiber Bragg Grating Corrosion Sensor Based on the Detection of a Local Surface Expansion
Abstract
This paper presents a fiber optic sensor for the detection of corrosion processes that occur on metal surfaces. In the proposed sensor design, a sensing fiber with an inscribed high-order Bragg grating is attached to the observed metal surface. A broadening of high-order Bragg grating spectral characteristics is observed and used to detect small and highly localized longitudinal strain variations that occur along the fiber as a result of corrosive rust flakes’ formations beneath the sensing fiber. The proposed approach provides a straightforward fabrication method, the possibility for unobtrusive mounting, including mounting of the sensor beneath the corrosion-protective layers, and consistent corrosion detection yields.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jul 26, 2023
- Source ID
- 10.1155/2023/9972511
Entities
People
- Boris Macuh
- Denis Đonlagić
- Matej Njegovec
- Simon Pevec
- Vedran Budinski
Organizations
- Office of Naval Research
- University of Maribor