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分析了适用于动态应变测量的光纤光栅传感器所应满足的条件,并进行了相关实验。在实验的基础上,设计并制作了一种适用于工程化的光纤光栅动态应变传感器。对等强度水泥梁以及实际工程中的卢浦大桥等场合,用该光纤光栅应变传感器与传统的电阻应变片传感器进行了对比验证。实验结果表明,光纤光栅应变传感器具有很高的精度
The conditions that FBG sensor suitable for dynamic strain measurement are analyzed and the relevant experiments are carried out. Based on the experiment, a kind of dynamic strain sensor which is suitable for engineering fiber grating is designed and fabricated. The equivalent strength of concrete beams and the actual project of Lupu Bridge and other occasions, with the FBG sensor and conventional resistance strain gauge sensor were compared and verified. The experimental results show that the FBG strain sensor has a high accuracy