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发明公开
CN108489405A 光纤光栅式传感器和光纤光栅式传感系统 有权

光纤光栅式传感器和光纤光栅式传感系统
摘要：
本发明涉及边坡滑移监测领域，公开了一种光纤光栅式传感器和光纤光栅式传感系统，该光纤光栅式传感器包括壳体(1)、第一光纤(11)、第二光纤(12)和设置在所述壳体(1)中的多个连接杆(2)，所述壳体(1)为长条状以使铰接连接的多个所述连接杆(2)能够在所述壳体(1)中沿同一方向延伸，且所述壳体(1)能够发生形变，所述第一光纤(11)和所述第二光纤(12)上均设置有光纤光栅(3)，其中，所述第一光纤(11)和所述第二光纤(12)分别设置在所述连接杆(2)的相对两侧，以使当所述连接杆(2)之间发生相对旋转时一者被拉伸而另一者被压缩。本申请提供的传感器具有较高的灵敏度，且能避免环境温度对测量结果的干扰。
摘要（英）：

The invention discloses a fiber grating type sensor and sensing system, and relates to the field of slope slip monitoring. The fiber grating type sensor comprises a casing (1), a first fiber (11), a second fiber (12) and connecting rods (2) arranged in the casing (1), the casing (1) is strip-shaped so that the connected rods (2) connected in a hinged manner can extend along the same direction in the casing (1) and the casing (1) can be deformed, the first fiber (11) and the second fiber (12) are provided with a fiber grating (3), and the first fiber (11) and the second fiber (12) are arrangedin two opposite sides of the connecting rod (2) so that one fiber is stretched and the other fiber is compressed when the connecting rods (2) are rotated relatively. The provided sensor is highly sensitive, and the ambient temperature is avoided form interfering in a measuring result.

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