Geotechnical body deformation monitoring device based on fiber grating and brillouin reflection combination
By combining fiber optic gratings and Brillouin reflection in a soil deformation monitoring device, the problems of insufficient monitoring accuracy and poor data consistency in long-distance monitoring have been solved, achieving high-precision deformation monitoring and direction identification, and improving the accuracy of disaster early warning.
CN122408648APending Publication Date: 2026-07-17SHANXI UNIV
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHANXI UNIV
- Filing Date
- 2026-06-16
- Publication Date
- 2026-07-17
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Figure CN122408648A_ABST
Abstract
本发明属于地质工程监测技术领域，公开了一种基于光纤光栅与布里渊反射结合的岩土体变形监测装置，包括：测斜管、光栅解调仪、布里渊光时域反射仪和数据处理单元，测斜管的外表面有多根第一铠装光栅串和多根第二铠装光栅串；第一铠装光栅串和第二铠装光栅串的一端与光栅解调仪连接，测斜管外表面还固定有沿长度方向设置的铠装光缆，铠装光缆的一端与布里渊光时域反射仪连接；光栅解调仪和布里渊光时域反射仪的输出端与数据处理单元连接，数据处理单元用于融合光栅解调仪的原始光栅应变数据和布里渊光时域反射仪的测量数据，并解调得到岩土体变形数据。本发明能更好地监测边坡内部变形和位移情况，提升对边坡变形趋势的判断能力。
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