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| 放大自发辐射解调的光纤光栅振动传感系统时域建模研究 | |
| 引用本文： | 邵军,刘君华,乔学光,贾振安,葛鹏.放大自发辐射解调的光纤光栅振动传感系统时域建模研究[J].西安交通大学学报,2010,44(4). |
| 作者姓名： | 邵军 刘君华 乔学光 贾振安 葛鹏 |
| 作者单位： | 1. 西安交通大学电气工程学院,710049,西安;西安石油大学光电油气测井与检测教育部重点实验室,710065,西安 2. 西安交通大学电气工程学院,710049,西安 3. 西安石油大学光电油气测井与检测教育部重点实验室,710065,西安 |
| 基金项目： | 国家"863计划"资助项目，国家自然科学基金 |
| 摘 要： | 将放大自发辐射(ASE)光源的线性区间作为边缘滤波器的解调技术予以推广,将其由温度、应变的静态解调扩展应用至光纤光栅振动传感器的动态解调.首先建立了基于ASE光源解调的光纤光栅振动传感测量系统,提出位移负阶跃响应测试法并利用其得到了该系统的时域信号,并且由非线性直接拟合法获得该系统的动态参数,所得动态参数与有限元仿真结果相近.研究结果表明:ASE光源进行动态解调方案简单可行,位移负阶跃响应测试法获得动态时域信号不需要专门的激励设备,易于实现,与传统求取动态参数的方法相比,非线性拟合法求取动态参数更为简便. |
| 关 键 词： | 光纤光栅 振动加速度传感器 ASE光源 时域建模 负阶跃响应 非线性直接拟合法 |
Time Domain Modeling of Fiber Bragg Gratings Vibration Acceleration Sensor Based on Amplified Spontaneous Emission Light Source |
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| SHAO Jun,LIU Junhua,QIAO Xueguang,JIA Zhen\'an,GE Peng.Time Domain Modeling of Fiber Bragg Gratings Vibration Acceleration Sensor Based on Amplified Spontaneous Emission Light Source[J].Journal of Xi'an Jiaotong University,2010,44(4). | |
| Authors: | SHAO Jun LIU Junhua QIAO Xueguang JIA Zhen\'an GE Peng |
| Institution: | SHAO Jun1,2,LIU Junhua1,QIAO Xueguang2,JIA Zhen\'an2,GE Peng2(1.School of Electrical Engineering,Xi\'an Jiaotong University,Xi\'an 710049,China,2.The Ministry of Education KeyLaboratory of Photoelectric Oil & Gas Logging , Detecting,Xi\'an Shiyou University,Xi\'an 710065,China) |
| Abstract: | The demodulating technique of amplified spontaneous emission (ASE) is extended to fiber Bragg gratings vibration acceleration sensor and so this technique for the static demodulation of temperature or strain can be applied to dynamical demodulation of vibration acceleration. The measure system of fiber Bragg gratings vibration acceleration sensor based on ASE is constructed.The dynamical time domain signal of this system is obtained by negative step response of setting initial displacement. The dynamic para... |
| Keywords: | fiber grating vibration acceleration sensor amplified spontaneous emission light source time domain modeling negative step response nonlinear direct fitting |
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