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Zhi-Yong Dai, Yong Liu, Li-Xun Zhang, Zhong-Hua Ou, Ce Zhou, Yong-Zhi Liu. Landslide Monitoring Based on High-Resolution Distributed Fiber Optic Stress Sensor[J]. Journal of Electronic Science and Technology, 2008, 6(4): 416-419.
Citation: Zhi-Yong Dai, Yong Liu, Li-Xun Zhang, Zhong-Hua Ou, Ce Zhou, Yong-Zhi Liu. Landslide Monitoring Based on High-Resolution Distributed Fiber Optic Stress Sensor[J]. Journal of Electronic Science and Technology, 2008, 6(4): 416-419.
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Landslide Monitoring Based on High-Resolution Distributed Fiber Optic Stress Sensor

  • 1.

    Key Laboratory of Broadband Optical Fiber Transmission &Communication Networks(Ministry of Education of China),School of Optoelectronic Information,University of Electronic Science &Technology of China,Chengdu,610054,China;

  • 2.

    Exploration Engineering Institute,GAGS,Chengdu,610081,China

Funds: 

This work was supported by the National Natural Science Foundation of China under Grant No. 60377021, partially supported by Program for New Century Excellent Talents in University under Grant. No. NCET-07-0152, and Sichuan Scientific Funds for Young Researchers under Grant No. 08ZQ026-012.

More Information
  • Author Bio:

    Zhi-Yong Dai research interests include optical fiber communication, optoelectronic sensor and signal processing, and optical wireless communication;
    Yong-Zhi Liu, YongLiu@uestc.edu.cn

    Zhi-Yong Dai research interests include optical fiber communication, optoelectronic sensor and signal processing, and optical wireless communication;
    Yong-Zhi Liu, YongLiu@uestc.edu.cn

  • Received Date: 2008-09-06
  • Rev Recd Date: 2008-10-03
  • Publish Date: 2008-12-24
    Abstract
  • A landslide monitoring application is presented by using a high-resolution distributed fiber optic stress sensor. The sensor is used to monitor the intra-stress distribution and variations in landslide bodies, and can be used for the early warning of the occurrence of the landslides. The principle of distributed fiber optic stress sensing and the intra-stress monitoring method for landslides are described in detail. By measuring the distributed polarization mode coupling in the polarization-maintaining fiber, the distributed fiber stress sensor with stress measuring range 0 to 15 MPa, spatial resolution 10 cm and measuring range 0.5 km, is designed. The warning system is also investigated experimentally in the field trial.
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