CAO Min, WANG En, LI Bo, et al. Calibration and uncertainty analysis of FBG displacement sensors[J]. 2016, 35(4): 35-37. DOI: 10.13873/J.1000-9787(2016)04-0035-03.
In order to improve calibration precision of fiber Bragg grating( FBG) displacement sensor and achieve automatic calibration
FBG displacement sensor calibration devices which range of 18 cm are designed to calibrate FBG displacement sensor online. Static calibration coefficients of FBG sensor are obtained by using least square fitting method for wavelength measured by FBG demodulation device and displacement got by calculation
and conduct uncertainty evaluation for calibration device and sensor. Experimental results show that the sensitivity
linearity and repeatability error of FBG displacement sensor which got by the FBG displacement sensor calibration platform are 0. 0145 nm / mm
99. 87 %
0. 082 %
respectively
the uncertainty of measurement of calibration device is 0. 11 mm.
Application of Fiber Reinforced Polymer Overlays to Extend Steel Fatigue Life [J] . Sean C. Jones,Scott A. Civjan. Journal of Composites for Construction . 2003 (4)