光纤光栅应变传感器光力转换的非线性时变方程

Nonlinear and Timedependant Optomechanical Transformation Equation for FBG Strain Sensors

摘要:

基于光纤光栅应变传感的基本原理以及弹塑性力学与黏弹性力学的基本理论,建立了考虑传感器的非线性和黏弹性力学行为的光纤光栅应变传感器光力转换的非线性时变方程.

Abstract:

Based on the Basic fiber optical Bragg grating(FBG)strain sensing principle and the basic theories of elastoplastic and viscoelastic mechanics,a nonlinear and timedependant optomechanical transformation equation for FBG sensors was established,into which effects of both plastic and viscoelastic mechanic behaviors of a sensor were incorporated.