| Fire Detection Method Based on Identical Fiber Bragg Grating |
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| 作者姓名： | GAO Xue-qing JIANG De-sheng |
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| 作者单位： | Key Laboratory of Fiber Optic Sensing Technology and Information Processing for Ministry of Education, Wuhan University of Technology, Wuhan 430070, CHN |
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| 基金项目： | National Natural Science Foundation of China（60537050）. |
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| 摘 要： | Wavelength division multiplex has obvious advantages when it is used in fiber Bragg grating （FBG） sensing for simultaneous measurement of various quantities, but the number of sensors is usually restricted by the bandwidth of SLED and demodulator. The identical fiber Bragg grating is introduced for fire alarm system and the method of collecting signal of identical FBG sensors is described. The experiment result shows that with identical FBG sensing. The number of the sensors coupled in one fiber increases greatly and the precision can be ensured to meet the requirement for fire alarm system.
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| 关 键 词： | Bragg光栅 光纤通信 多点温度监控 信号处理 火警系统 |
| 文章编号： | 1007-0206（2006）04-0233-05 |
| 收稿时间： | 2006-05-12 |
| 修稿时间： | 2006-05-25 |
Fire Detection Method Based on Identical Fiber Bragg Grating |
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| GAO Xue-qing JIANG De-sheng.Fire Detection Method Based on Identical Fiber Bragg Grating[J].Semiconductor Photonics and Technology,2006,12(4):233-237. |
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| Authors: | GAO Xue-qing JIANG De-sheng |
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| Abstract: | Wavelength division multiplex has obvious advantages when it is used in fiber Bragg grating(FBG) sensing for simultaneous measurement of various quantities, but the number of sensors is usually restricted by the bandwidth of SLED and demodulator. The identical fiber Bragg grating is introduced for fire alarm system and the method of collecting signal of identical FBG sensors is described. The experiment result shows that with identical FBG sensing. The number of the sensors coupled in one fiber increases greatly and the precision can be ensured to meet the requirement for fire alarm system. |
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| Keywords: | Fiber Bragg grating Multipoint temperature monitoring Signal processing Fire alarm system |
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