An Experimental Investigation on Flexural Behavior of Reinforced Concrete Beams Strengthened by an Intelligent CFRP Plate with Built-In Optical Fiber Bragg Grating Sensors

Table 3

Static sensing characteristics for the FBG-CFRP plates.

Specimen	Sensitivity (pm/με)	Linearity	Repeatability	Hysteresis	Measuring range (με)	Resolution	Overall accuracy
SC-1	1.228	0.318%	0.662%	0.197%	7041	0.01160%	0.726%
SC-2	1.227	1.290%	0.716%	0.380%	8402	0.00970%	1.7%
SC-3	1.244	0.708%	0.894%	0.192%	8603	0.00937%	1.16%
SC-4	1.212	0.897%	0.242%	0.208%	8806	0.00992%	1.183%
Average	1.228	0.803%	0.629%	0.244%	8213	0.0101%	1.1923%