河南师范大学电子与电气工程学院
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李冰, 李克城, 吴晓阳, 等. 基于激光拍频的高温传感技术研究[J]. 传感器与微系统, 2024,(4):25-27.
李冰, 李克城, 吴晓阳, 等. 基于激光拍频的高温传感技术研究[J]. 传感器与微系统, 2024,(4):25-27. DOI: 10.13873/J.1000-9787(2024)04-0025-03.
为实现强电磁及其他特殊高温环境的直接温度测量,提出并演示了一种新颖、简单、低成本的光纤高温温度检测系统,该系统利用法布里—珀罗激光二极管(FP-LD)的强反馈来实时检测反射光纤的温度。传感系统由通信用激光光源——FP-LD、光纤环镜Sagnac和光电探测器(PD)组成。利用该系统实现了温度变化范围为105~1 025℃的高温温度传感。实验结果表明,在光纤软化温度内其强反馈拍频信号(BFS)的频率偏移与温度变化呈线性关系,可广泛应用于冶金、航空航天等领域的高温检测。
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