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实用新型
CN201476904U 一种并联式光纤光栅高灵敏温度传感器 失效 - 权利终止

一种并联式光纤光栅高灵敏温度传感器
摘要：
在测量过程中，若双金属光纤光栅传感器的连接处产生滑动，将严重影响测量结果。为了减小其影响，本实用新型采取了一种并联式的结构，即在一个金属基底上并排放置两根金属长条，并使其各连接一根光栅，形成两个测量点。这样，当某连接处发生滑动时，两个测量点的观测值会不一致；当所有连接处都没发生滑动，并且温度发生变化时，两个测量点的观测值一致。因此，该传感器可以判断连接处是否发生了滑动。
摘要（英）：

In the measuring process, the measuring result is seriously influenced if the connecting part of the bimetal fiber Bragg grating sensor slides. For reducing the influence, the utility model adopts a parallel structure which is characterized in that two metal strips are placed on a metal substrate in parallel and are respectively connected with a grating to form two measuring points, therefore when the connecting part slides, the observed values of the two measuring points are inconsistent; when all the connecting parts do not slide and the temperature changes, the observed values of the two measuring points are consistent, and the sensor can judge whether the connecting part slides or not.

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