| 李昊业,张 雯,宋言明,董明利,祝连庆.面向航天器微小碰撞的飞秒光纤光栅冲击检测系统[J].电子测量与仪器学报,2022,36(2):153-159 |
| 面向航天器微小碰撞的飞秒光纤光栅冲击检测系统 |
| Impact detection system of femtosecond fiber bragggrating for spacecraft micro-collisions |
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| DOI： |
| 中文关键词: 飞秒光纤光栅 微小碰撞 冲击检测 边沿滤波 包络提取 |
| 英文关键词:femtosecond fiber grating micro-collision impact detection edge filter envelope extraction |
| 基金项目:北京市自然科学基金（4202027）、国家自然科学基金（61801030，62003346）、高等学校学科创新引智计划（D17021）项目资助 |
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| Author | Institution |
| Li Haoye | 1. Beijing Laboratory of Optical Fiber Sensing and System, Beijing Information Science & Technology University,2. Key Laboratory of the Ministry of Education for Optoelectronic Measurement Technology
and Instrument, Beijing Information Science & Technology University |
| Zhang Wen | 1. Beijing Laboratory of Optical Fiber Sensing and System, Beijing Information Science & Technology University,2. Key Laboratory of the Ministry of Education for Optoelectronic Measurement Technology
and Instrument, Beijing Information Science & Technology University |
| Song Yanming | 1. Beijing Laboratory of Optical Fiber Sensing and System, Beijing Information Science & Technology University,2. Key Laboratory of the Ministry of Education for Optoelectronic Measurement Technology
and Instrument, Beijing Information Science & Technology University |
| Dong Mingli | 1. Beijing Laboratory of Optical Fiber Sensing and System, Beijing Information Science & Technology University,2. Key Laboratory of the Ministry of Education for Optoelectronic Measurement Technology
and Instrument, Beijing Information Science & Technology University |
| Zhu Lianqing | 1. Beijing Laboratory of Optical Fiber Sensing and System, Beijing Information Science & Technology University,2. Key Laboratory of the Ministry of Education for Optoelectronic Measurement Technology
and Instrument, Beijing Information Science & Technology University |
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| 中文摘要: |
| 针对航天器微小碰撞产生的冲击能量检测问题,设计了一种面向航天器微小碰撞的飞秒光纤光栅冲击检测系统,并对
冲击能量进行检测。 建立飞秒光纤光栅应变传感及边沿滤波解调模型。 使用有限元分析软件对微小碰撞产生的冲击能量分布
情况进行理论模拟。 搭建冲击检测系统,对飞秒光纤光栅进行冲击能量感知特性测试,利用时域包络提取法分析能量传递特
性。 实验数据表明,质量为 10、20、40、60、80 g 的小球分别在同一位置下落时,光栅系统检测到的碰撞信号呈线性增长趋势,经
边沿滤波算法反演冲击电压最高可达 30. 8 mV;同一质量小球在不同位置下落时,光栅系统检测到的碰撞信号呈线性下降趋
势,检测到的冲击电压可低至 16. 5 mV。 该系统可实现对微小碰撞产生的冲击能量的检测,对航天器微小碰撞检测问题有一定
的参考意义。 |
| 英文摘要: |
| In order to detect the impact energy generated by spacecraft micro-impact, a femtosecond fiber grating impact detection system
for spacecraft micro-impact was designed and the impact energy was detected. The strain sensing model and edge filtering demodulation
model of femtosecond fiber grating are established. The finite element analysis software is used to simulate the impact energy distribution
of micro-collisions. An impact detection system was built to test the impact energy sensing characteristics of femtosecond fiber grating,
and the energy transfer characteristics were analyzed by using the time-domain envelope extraction method. Experimental results show
that when the balls with the mass of 10, 20, 40, 60 and 80 g fall at the same position, the collision signals detected by the grating
system show a linear increasing trend, the maximum impulse voltage retrieved by edge filtering algorithm is 30. 8 mV. When the same
mass ball falls at different positions, the collision signals detected by the grating system show a linear downward trend, the detected
impulse voltage can be as low as 16. 5 mV. The system can detect the impact energy generated by the micro-collision, which has a
certain reference significance to the problem of spacecraft micro-collision detection. |
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