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| 用于光纤光栅传感的低成本高分辨率多通道波长解调仪 | |
| 引用本文： | 李恩邦,彭刚定,姚建铨. 用于光纤光栅传感的低成本高分辨率多通道波长解调仪[J]. 仪器仪表学报, 2007, 28(1): 1-6 |
| 作者姓名： | 李恩邦 彭刚定 姚建铨 |
| 作者单位： | 1. 天津大学精密仪器与光电子工程学院,天津,300072,中国;澳大利亚新南威尔士大学电气与通信系,悉尼,NSW 2052,澳大利亚 2. 澳大利亚新南威尔士大学电气与通信系,悉尼NSW 2052,澳大利亚 3. 天津大学精密仪器与光电子工程学院,天津,300072,中国 |
| 摘 要： | 本文报道一种用于光纤光栅传感的低成本高分辨率多通道波长解调仪。基于薄膜滤波技术的密集波分复用模块已被广泛用于光纤通信系统中，在本文中，采用已商品化的薄膜密集波分复用模块同时完成了以波分复用方式连接的多个光纤光栅传感器的信号分离与波长解调功能，研究了一种结构简单、低成本、高分辨率的光纤光栅传感系统。该传感系统的特点是可用于多通道动态测量。本文将具体介绍一种旧通道传感系统，该系统在3kHz频率下的动态应变的分辨率优于1nε√Hz。 |
| 关 键 词： | 光纤光栅 光纤传感 波分复用 动态应变 振动 |
| 修稿时间： | 2006-12-01 |
Low-cost high-resolution wavelength demodulator for multi-channel dynamic FBG sensing |
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| Li Enbang,Peng Gangding,Yao Jianquan. Low-cost high-resolution wavelength demodulator for multi-channel dynamic FBG sensing[J]. Chinese Journal of Scientific Instrument, 2007, 28(1): 1-6 | |
| Authors: | Li Enbang Peng Gangding Yao Jianquan |
| Abstract: | A simple and low-cost wavelength demodulator with high resolution for multi-channel dynamic fiber Bragg grating(FBG) sensing applications is presented. Thin-film filter (TFF) based dense wavelength division multiplexing (DWDM)modules have been well developed and widely used in optical communications systems. In this study, we adopt a commercially available TFF DWDM module to simultaneously separate and demodulate multi-channel signals from wavelength-multiplexed FBG sensors, leading to a simple and low-cost FBG sensing system with high resolution, which is suitable for multi-channel dynamic measurements. In the present study, a four-channel FBG sensing system with a strain resolution better than 1 nε/(√Hz) at a frequency of 3 kHz has been demonstrated. |
| Keywords: | fiber Bragg grating fiber sensing wavelength division multiplexing dynamic strain vibration |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |