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Experimental study on the FBG Sensing Character under three-dimensional uniform stress field

机译:三维均匀应力场下FBG传感特性的实验研究

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摘要

FBG sensing character and model under three-dimensional stress are studyed in this paper. FBG center wavelength shifts of the two polarization directions are different and the shifts are determined by the changes of refractive index and the axial stain. The experiment indicates that the resonance peak wavelength shift amounts of the two directions are proportional to the transverse load.
机译:本文研究了三维应力下的FBG感应特征和模型。两个偏振方向的FBG中心波长偏移是不同的,并且偏移由折射率和轴向染色的变化确定。实验表明,两个方向的谐振峰值波长偏移量与横向负载成比例。

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