基于光纤光栅传感的测斜自动化室内试验研究

Indoor test research of survey automation based on fiber bragg grating sensing technology

介绍了将光纤光栅传感器技术用于测斜自动化监测的室内设计方法,根据光纤布拉格光栅波长变化与应变之间的线性关系求得各测点的应变,并通过多项式拟合和积分,由测点应变计算出各测点的位移,最后指出室内试验结果验证了该新型原位测斜仪和分析方法的有效性,研究结果可为深层土体侧向变形监测提出新的可靠途径。

This paper introduces the technology of fiber grating sensors for inclinometer monitoring approach to interior design. According to the optical fiber prague grating wavelength variation and strain of the linear relationship between the strain is obtained, and then through the polynomial fitting and integral, by measuring the strain are calculated for each measuring point displacement. Point out indoor test results verify the new inplace inclinometer and the effectiveness of the analysis method. The research results can be used for deep soil lateral deformation monitoring is presented the new reliable way.