Machine‐Learning‐Enhanced Dual‐Diameter Sapphire Fiber Bragg Gratings for Simultaneous High‐Temperature and Strain Sensing
Fiber‐optic multiparameter sensors are versatile tools for in situ health monitoring of critical components in hypersonic vehicles, including thermal protection systems and turbine engine blades. Sapphire fiber Bragg gratings (SFBGs), owing to excellent high‐temperature performance, offer a competitive solution for s...