Cantilever-based biaxial FBG inclinometer with low cross-axis sensitivity
Document Type
Article
Publication Date
1-1-2024
Abstract
This work proposes and demonstrates a biaxial sensing inclinometer based on two FBGs surfacemounted on two separate thin cantilevers with a diminishable cross-axis sensitivity. The measured sensitivities for the inclination angles in the x-z plane and y-z plane are 34.87 and 33.49 pm/deg, respectively. To enhance the protection of the delicate FBGs and minimize axis-to-axis cross-sensitivity, the carbon-steel cantilevers are strategically arranged in a perpendicular configuration, resulting in an impressively low cross-sensitivity value of just 0.9275%. This alignment not only offers mechanical shielding but also ensures optimal performance and accuracy for the FBGs.
Keywords
inclinometer, cantilever, cross-sensitivity, fiber Bragg grating.
Divisions
PHYSICS,photonics
Funders
Technology Development Fund (TED1),Ministry of Energy, Science, Technology, Environment and Climate Change (MESTECC), Malaysia (TDF06221580); (MOSTI003 -2023TED1),UM Matching Grant (MG029-2022)
Publication Title
Optica Applicata
Volume
54
Issue
2
Publisher
Wroclaw University of Science and Technology
Publisher Location
WYBRZEZE WYSPIANSKIEGO 27, WROCLAW, 50-370, POLAND