引用本文: | 张学亮,倪明,孟洲,等.基于铽镝铁换能器的全保偏光纤磁场传感系统[J].国防科技大学学报,2005,27(3):30-33.[点击复制] |
ZHANG Xueliang,NI Ming,MENG Zhou,et al.All Polarization Maintaining Fiber Magnetic Field Sensing System with TbDyFe Transducer[J].Journal of National University of Defense Technology,2005,27(3):30-33[点击复制] |
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基于铽镝铁换能器的全保偏光纤磁场传感系统 |
张学亮, 倪明, 孟洲, 胡永明 |
(国防科技大学 光电科学与工程学院,湖南 长沙 410073)
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摘要: |
制作了铽镝铁保偏光纤换能器,建立了全保偏马赫—曾德尔光纤干涉仪系统,采用工作点控制方法解调信号,实现了光纤磁场传感。该全保偏光纤干涉系统结构简单、抗干扰,有效解决了偏振不稳定问题。实验检测了系统对磁场幅度变化的响应特性,最小可测交流磁场信号为3×10-10T。 |
关键词: 光纤光学 保偏光纤 磁场传感 磁致伸缩 铽镝铁 |
DOI: |
投稿日期:2004-11-23 |
基金项目: |
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All Polarization Maintaining Fiber Magnetic Field Sensing System with TbDyFe Transducer |
ZHANG Xueliang, NI Ming, MENG Zhou, HU Yongming |
(College of Opto-electronic Science and Engineering, National Univ. of Defense Technology, Changsha 410073,China)
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Abstract: |
TbDyFe transducer with polarization maintaining fiber (PMF) is produced. An all polarization maintaining fiber M-Z interferometer is set up. Magnetic field sensing is realized with optical fiber by means of work point controlling method. This system has many advantages such as simple construction and anti-jamming. Especially it has solved the polarization instability. Responses of the system with the change of the DC signal and AC signal amplitude are measured. The smallest AC magnetic field 3×10-10T is obtained in this system. |
Keywords: fiber optics polarization maintaining fiber magnetic field sensing magnetostriction TbDyFe |
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