激光与光电子学进展, 2020, 57 (5): 050602, 网络出版: 2020-03-05 复制并引用该论文  本文已被引 3 次  被引通知

图 & 表

图 1. 光载微波干涉光子晶体光纤传感系统原理图

Fig. 1. Schematic of photonic crystal fiber sensing system based on optical-borne microwave interference

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图 2. 光载微波干涉光纤传感系统的仿真分析图。(a)位置可分辨的IFFT时域谱;(b)信号的S参数频谱

Fig. 2. Simulation analysis diagram of optical-borne microwave interference based optical fiber sensing system. (a) Position-resolvable IFFT time domain spectrum; (b) S-parameter spectrum of signal frequency domain

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图 3. 应变传感实验光载微波干涉谱。(a)信号的S参数频谱;(b)位置可分辨的IFFT时域谱

Fig. 3. Optical-borne microwave interference spectrum for strain sensing experiments. (a) S-parameter spectrum of signal frequency domain; (b) position-resolvable IFFT time domain spectrum

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图 4. 添加时域门后的光载微波干涉谱。(a)位置可分辨的IFFT时域谱;(b)信号的S参数频谱

Fig. 4. Optical-borne microwave interference spectrum after adding time domain door. (a) Position-resolvable IFFT time domain spectrum; (b) S-parameter spectrum of signal frequency domain

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图 5. 应变传感实验结果。(a)应变变化下微波干涉信号的频率偏移;(b)波谷处的频谱偏移与拟合结果

Fig. 5. Results of strain sensing experiments. (a) Frequency shift of the microwave interference signal under strain changes; (b) frequency shift and fitting results at the valley

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图 6. 高温传感实验结果。(a)温度变化下微波干涉信号的频率偏移;(b)波谷处频率偏移与热电偶温度测量曲线

Fig. 6. Results of high temperature sensing experiments. (a) Frequency shift of microwave interference signal under temperature change; (b) frequency shift at the valley and thermocouple temperature measurement curve

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图 7. 不同长度探头随升温时间变化的频率偏移的归一化结果

Fig. 7. Normalized result of frequency shift with different probe lengths as a function of temperature rise time

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梁斯靖, 周次明, 范典, 李宇潇, 庞彦东, 陈希. 光载微波干涉光子晶体光纤传感系统实验研究[J]. 激光与光电子学进展, 2020, 57(5): 050602. Sijing Liang, Ciming Zhou, Dian Fan, Yuxiao Li, Yandong Pang, Xi Chen. Experimental Study on Photonic Crystal Fiber Sensing System Based on Optical-Borne Microwave Interference[J]. Laser & Optoelectronics Progress, 2020, 57(5): 050602.