| 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 |
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(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 |
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(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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