Comparative Study of Fiber Bragg Gratings and Fiber Polarimetric Sensors for Structural Health Monitoring of Carbon Composites

Table 1

Features of FBG and PS technologies as embedded sensors for CFC structural monitoring.

Parameter	FBG	PS
Static/quasistatic monitoring	Feasible	Difficult
Dynamic monitoring (vibrations)	Feasible	Feasible
Sensitivity to environmental perturbations	Low	High
Embedding	Fairy easy	Fairy difficult
Signal processing of the data	Required	Optional
Cost of the sensor	Fair	Low
Overall cost of the monitoring system	High	Low