Comparative Assessment and Experimental Validation of a Prototype Phase-Optical Time-Domain Reflectometer for Distributed Structural Health Monitoring

Table 1

Absolute positions of FBGs.

FBG number	Bridge section	Position	Bridge side	Absolute position (cm)
1	2	Section	North	152.8
2	2	Section	North	202
3	2-3	Junction	North	245
4	3	Section	North	307.5
5	4-5	Junction	North	368.4
6	4	Section	North	460.2
7	5	Section	North	512
8	2	Section	South	152.8
9	2	Section	South	202
10	2-3	Junction	South	245
11	3	Section	South	307.5
12	4-5	Junction	South	368.4
13	4	Section	South	460.2
14	5	Section	South	512