High-resolution distributed strain sensing system for landslide monitoring

• DOI: 10.1016/j.ijleo.2017.12.013
• Publication Date: 2017-12-12T01:15:40Z
• Authors: Zhihua Yu; Haolong Dai; Qi Zhang; Mingyu Zhang; Li Liu; Jingjing Zhang; Xing Jin
• Keywords: 0211 other engineering and technologies; 02 engineering and technology

Abstract A novel fiber-optics landslide monitoring system is proposed to achieve distributed,high-sensitivity and high-resolution strain measurement. The whole system adopts Rayleigh backscatter-based coherent optical time-domain reflectometry (COTDR) technique to realize long-distance, real-time monitoring with a resolution of 0.1 μ e and a spatial resolution of one meter.