The strain distribution measurement by the use of the optoelectronic method based on the fibre bragg gratings

In the article the strain distribution recovery method for the fiber Bragg grating (FBG) sensor was presented. We use the fiber Bragg gratings as a strain sensor, and we have carried out distributed strain measurements by using of optimization algorithms. Numerical methods for resolve the inverse problem are necessary to recover the strain distribution, which was measured by using of FBG element.