Strain Transferring Analysis of Pasted Strain Fiber Bragg Grating SensorLIANG Lei,WANG Yan-ni,LIU De-li (Fiber Optic Sensing Technology Research Centre,Wuhan University of Technology,Wuhan 430070,China)The concept of strain transferring coefficient was proposed through analysis of principle of fiber Bragg Grating sensors.5-layer structure finite element model of the pasted strain FBG sensor was established by simulation and computing several factors which affect the coefficient of strain transferring was discussed.fiber Bragg grating;strain sensor;strain transferring