尼龙紧包光纤的布里渊频移和温度监测研究

发布时间：2019-06-06 06:22

【摘要】：面向布里渊散射测温的应用领域,针对同一传感线路升温条件下,尼龙紧包光纤与裸纤的布里渊频移和温度值变化关系,介绍了布里渊散射监测原理,设计了基于BOTDA技术的尼龙紧包光纤和裸光纤的测温实验方案。分析了布里渊频移与温度间关系曲线斜率、频移量的偏离变化;探讨了同温度时布里渊频移曲线特征和频移值变化规律;提出了适合紧包光纤测温的条件。
[Abstract]:Facing the application field of Brillouin scattering temperature measurement, the Brillouin scattering monitoring principle is introduced in view of the relationship between Brillouin frequency shift and temperature value between nylon tight fiber and bare fiber under the condition of heating up of the same sensing line. The experimental scheme of nylon tight fiber and bare fiber based on BOTDA technology is designed. The slope and deviation of Brillouin frequency shift curve between Brillouin frequency shift and temperature are analyzed, the characteristics of Brillouin frequency shift curve and the variation law of frequency shift value at the same temperature are discussed, and the conditions suitable for temperature measurement of compact optical fiber are put forward.
【作者单位】：深圳市特发信息股份有限公司;
【基金】：深圳市技术攻关项目(批准号:重20150145)资助
【分类号】：TN253

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