Welding Deformation of Hydraulic Support Measurements by Using FBG Sensors

Table 1

Parameters of Osc3110.

Sensors	FG	λ0	C1	C2
FBG1	0.89 at 22°C	1550.83 nm at 22°C	6.156 μm/m at 22°C	0.7 μm/m
FBG2	0.89 at 22°C	1552.58 nm at 22°C	6.156 μm/m at 22°C	0.7 μm/m
FBG3	0.89 at 22°C	1549.75 nm at 22°C	6.156 μm/m at 22°C	0.7 μm/m
FBG4	0.89 at 22°C	1558.70 nm at 22°C	6.156 μm/m at 22°C	0.7 μm/m
FBG5	0.89 at 22°C	1556.80 nm at 25°C	6.156 μm/m at 22°C	0.7 μm/m