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篇目详细内容 |
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【篇名】 |
Design of distributed Raman temperature sensing system based on single-mode optical fiber |
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【刊名】 |
Frontiers of Optoelectronics in China |
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【刊名缩写】 |
Front. Optoelectron. China |
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【ISSN】 |
1674-4128 |
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【EISSN】 |
1674-4594 |
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【DOI】 |
10.1007/s12200-009-0043-7 |
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【出版社】 |
Higher Education Press and Springer-Verlag |
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【出版年】 |
2009 |
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【卷期】 |
2
卷2期 |
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【页码】 |
215-218
页,共
4
页 |
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【作者】 |
Ziheng XU;
Deming LIU;
Hairong LIU;
Qizhen SUN;
Zhifeng SUN;
Xu ZHANG;
Wengang WANG;
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【关键词】 |
optical fiber; distributed temperature sensor; Raman scattering; field-programmable gate array (FPGA) |
【摘要】 |
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The distributed optical fiber temperature sensor system based on Raman scattering has developed rapidly since it was invented in 1970s. The optical wavelengths used in most of the distributed temperature optical fiber sensor system based on the Raman scattering are around from 840 to 1330nm, and the system operates with multimode optical fibers. However, this wavelength range is not suitable for long-distance transmission due to the high attenuation and dispersion of the transmission optical fiber. A novel distributed optical fiber Raman temperature sensor system based on standard single-mode optical fiber is proposed. The system employs the wavelength of 1550nm as the probe light and the standard communication optical fiber as the sensing medium to increase the sensing distance. This system mainly includes three modules: the probe light transmitting module, the light magnifying and transmission module, and the signal acquisition module. |
