Characterization of Fiber-Optic Vector Magnetic Field Sensors Based on the Magneto-Strictive Effect

Fiber-optic magnetic field sensors have garnered considerable attention in the of marine monitoring due to their compact size, robust anti-electromagnetic interference capabilities, corrosion resistance, high sensitivity, ease multiplexing and integration, potential for large-scale sensing networks. To enable detection vector information, we propose an optical fiber sensor that integrates three single-axis orthogonal configuration. Theoretical analysis experimental verification are conducted investigate its temperature characteristics, a sensitivity matrix is established address cross-sensitivity between temperature; tests were assess response three-dimensional (3D) across axes; obtained results illustrate commendable exhibited by axes, enabling precise demodulation information. This presents several advantages, including cost-effectiveness, easy reliability vectorially. Consequently, it holds immense critical applications network detection.