光学学报, 2001, 21 (7): 874, 网络出版: 2006-08-10
高分辨率单信道输出的光纤光栅传感系统
Time-Domain Addressing Technique for a Single-Channel Output and High-ResolutionFiber Bragg Grating Sensor System
光纤光栅 传感网络 时域地址查询 干涉解调 单信道输出 fiber Bragg graing sensor array time domain addressing interferometric demodulation single channel output
摘要
脉冲宽带光源发出的光波进入4个光栅组成的光栅串时，根据传感元间光纤延时程度的差别进行时域地址查询，借助非平衡迈克耳孙(Michelson)扫描干涉仪对传感信息进行解调，系统的应变传感分辨率为6nε，而灵敏度的实验值为1.63°/με。
Abstract
A technique of time domain addressing is introduced to interrogate a four element fiber Bragg grating sensor array. The sensor elements with different fiber delays were illumined with a pulsed broad band source. Demodulation was achieved with an unbalance Michelson scanning interferometer. The single channel output sensor system, which is with a sensing resolution of 6 nε, was demonstrated with a sensitivity of 1.63°/με.
余有龙, 谭华耀, 何海律, 锺永康. 高分辨率单信道输出的光纤光栅传感系统[J]. 光学学报, 2001, 21(7): 874. 余有龙, 谭华耀, 何海律, 锺永康. Time-Domain Addressing Technique for a Single-Channel Output and High-ResolutionFiber Bragg Grating Sensor System[J]. Acta Optica Sinica, 2001, 21(7): 874.
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