Enhanced Strain Measurement Sensitivity with Gold Nanoparticle-Doped Distributed Optical Fibre Sensing

Figure 10

The experimental results of strain distributions in the optical sensing fibre for different crack lengths (2 mm, 4 mm, and 8 mm in blue, yellow, and green, respectively) from LUNA ODISI-B. The crack lengths are the distances between the end of the crack to the bottom of the specimen [45].