An Optimized Method Based on Digitalized Lissajous Curve to Determine Lifetime of Luminescent Materials on Optical Fiber Sensors

Table 2

Phase shift calculated with the different Lissajous based methods in terms of averaged value and standard deviation.

O2 concentration
	μ (°)	σ (°)	μ (°)	σ (°)	μ (°)	σ (°)	μ (°)	σ (°)	μ (°)	σ (°)
0%	9.02	0.23	9.07	0.12	9.05	0.17	9.17	0.29	9.01	0.09
2%	8.44	0.21	8.60	0.21	7.97	0.23	8.33	0.31	8.23	0.11
7.5%	6.68	0.18	7.33	0.14	6.82	0.24	7.24	0.26	6.87	0.11
15%	5.46	0.16	6.23	0.13	4.78	0.26	5.66	0.28	5.42	0.11
60%	3.62	0.21	4.52	0.16	3.71	0.28	4.10	0.36	3.86	0.15
100%	2.63	0.34	2.60	0.31	3.56	0.52	2.07	0.59	3.09	0.13