Ultra low frequency phase generated carrier demodulation technique for fiber sensors
文献类型：期刊论文
| ; | |
| 作者 | Wang, Lin; He, Jun; Li, Fang; Liu, Yuliang; Wang, L.(wlcas@semi.ac.cn) |
| 刊名 | zhongguo jiguang/chinese journal of lasers
 ; Zhongguo Jiguang/Chinese Journal of Lasers
|
| 出版日期 | 2011 ; 2011 |
| 卷号 | 38期号:4页码:405001 |
| 关键词 | Algorithms Fiber optic sensors Fibers Interferometers Optical fibers Optical variables measurement Sensors Algorithms Fiber Optic Sensors Fibers Interferometers Optical Fibers Optical Variables Measurement Sensors |
| ISSN号 | 02587025 ; 02587025 |
| 通讯作者 | wang, l.(wlcas@semi.ac.cn) |
| 英文摘要 | A high resolution ultra low frequency phase generated carrier(PGC) demodulation technique for interferometric fiber sensors is proposed. The differential cross multiplication(DCM) algorithm and the Arctangent algorithm of PGC technique are analyzed theoretically and simulated by computer for ultra low frequency demodulation. And the results show that an unnecessary random direct current(DC) drift is induced in the recovered signal of DCM-PGC, but it doesn't exit in that of Arctangent-PGC. To demonstrate the conclusion, an optical fiber interferometer-based ultra low frequency sensing system is set up, and the comparable experiments of DCM-PGC and Arctangent-PGC are carried out. The experimental results show that only Arctangent-PGC can be used for ultra low frequency demodulation, for it avoids the problem of DC drift as DCM-PGC. At last the ultra low frequency demodulation system is achieved by Arctangent-PGC, and the testing results show that the system has the lowest frequency of0.01 Hz, a minimum detectable phase shift of4×10-4 rad/√Hz, a dynamic range of110 dB@1 Hz and a linearity of99.99%. |
| 学科主题 | 光电子学 ; 光电子学 |
| 收录类别 | EI |
| 语种 | 中文 ; 中文 |
| 公开日期 | 2012-06-14 ; 2012-06-14 |
| 源URL | [http://ir.semi.ac.cn/handle/172111/23094]  |
| 专题 | 半导体研究所_光电系统实验室 |
| 通讯作者 | Wang, L.(wlcas@semi.ac.cn) |
| 推荐引用方式 GB/T 7714 | Wang, Lin,He, Jun,Li, Fang,et al. Ultra low frequency phase generated carrier demodulation technique for fiber sensors, Ultra low frequency phase generated carrier demodulation technique for fiber sensors[J]. zhongguo jiguang/chinese journal of lasers, Zhongguo Jiguang/Chinese Journal of Lasers,2011, 2011,38, 38(4):405001, 405001. |
| APA | Wang, Lin,He, Jun,Li, Fang,Liu, Yuliang,&Wang, L..(2011).Ultra low frequency phase generated carrier demodulation technique for fiber sensors.zhongguo jiguang/chinese journal of lasers,38(4),405001. |
| MLA | Wang, Lin,et al."Ultra low frequency phase generated carrier demodulation technique for fiber sensors".zhongguo jiguang/chinese journal of lasers 38.4(2011):405001. |
入库方式： OAI收割
来源：半导体研究所
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