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| DSP光纤光栅解调系统研究 | |
| 引用本文： | 娄建华,刘军,王洁,杨道晗.DSP光纤光栅解调系统研究[J].西安科技大学学报,2012,32(1):91-94,120. |
| 作者姓名： | 娄建华 刘军 王洁 杨道晗 |
| 作者单位： | 1. 西安科技大学电气与控制工程学院,陕西西安,710054 2. 陕西省电力公司西安输变电运行公司,陕西西安,710075 3. 西安科技大学机械工程学院,陕西西安,710054 4. 陕西华电榆横煤电有限责任公司,陕西榆林,719015 |
| 摘 要： | 实现高精度、快速光纤光栅解调的关键在于对FBG传感器反射的光信号进行波长分析,根据波长的大小结合光纤光栅传感器的物理特性,最终获得相应的待测量。通过对解调系统中存在的噪声进行系统分析,找出电路和光路中影响系统精度的因素,并针对元器件选型、pcb布局、光路搭建、软件算法方面提出了噪声抑制方案,有效提高了系统的测量精度。 |
| 关 键 词： | 光纤光栅 解调 数字信号处理 噪声 |
Study on DSP fiber grating demodulation system |
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| LOU Jian-hua , LIU Jun , WANG Jie , YANG Dao-han.Study on DSP fiber grating demodulation system[J].JOurnal of XI’an University of Science and Technology,2012,32(1):91-94,120. | |
| Authors: | LOU Jian-hua LIU Jun WANG Jie YANG Dao-han |
| Institution: | 1.College of Electrical and Control Engineering,Xi’an University of Science and Technology,Xi’an 710054,China;2.Xi’an Power Transmission Operation Company,Shaanxi Electric Power Corporation,Xi’an 710075,China;3.College of Mechanical Engineering,Xi’an University of Science and Technology,Xi’an 710054,China;4.Shaanxi Huadian Yulin-Hengshan Coal Power Co.,LTD,Yulin 719015,China) |
| Abstract: | The key of quickly realizing high precise fiber grating demodulation lies in the analysis of light signal wavelength reflected by the FBG sensor,and according to the length of the wavelength with physical properties of the(temperature,stress) fiber grating sensors,we can finally obtain the relevant measurement.This paper found out the factors that can influence the precision of the system by making an analysis on the existing noise in demodulation system.To improve the precision of the system,this paper puts forward some solutions for the selection of components,pcb layout,the building of optical path and programming. |
| Keywords: | fiber Bragg grating demodulation digital signal processing noise |
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