Table 7.

Results of the sensing experiment for PPR fiber sensor.

No.	Sensing slope (m)	σ value	RI resolution 3σ/m (RIU)
1	2.285	1.07 × 10−5	1.41 × 10−5
2	3.021	6.15 × 10−5	6.1 × 10−5
3	2.042	6.6 × 10−5	9.69 × 10−5
		Average sensor resolution values	5.73 × 10−5