首页> 外文会议>Conference on fiber optic physical sensors in manufacturing and transportation >Optical frequency domain reflectometry damage sensor based on a laser diode sweep generator for smart structures and skins
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Optical frequency domain reflectometry damage sensor based on a laser diode sweep generator for smart structures and skins

机译:基于激光二极管扫描发生器的光学频域反射仪损伤传感器,用于智能结构和皮肤

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The paper discusses an application of the optical frequency-domain reflectometry method for damage and stress fiber sensors embedded in composites. Proposed sensor is based on an optical sweep generator with an external cavity laser diode. This diode provides a single frequency CW generation with 0.85-micron wavelength and maximum sweep rate up to 10,000 GHz/s. Under those conditions one can reach the optical frequency shift of 100 kHz/m in fiber. The spatial resolution of 10 cm in 100-m embedded fiber while determining a position of a damage was obtained.
机译:本文讨论了复合材料中嵌入式损坏和应力光纤传感器的光学频域反射方法的应用。所提出的传感器基于具有外腔激光二极管的光学扫描发生器。该二极管提供单个频率CW生成,具有0.85微米波长和最大扫描率,最高可达10,000GHz / s。在这些条件下,可以达到纤维中100kHz / m的光学频移。在100-M嵌入式光纤中,10厘米的空间分辨率在确定损坏位置时。

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