光谱学与光谱分析 |
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Research on Granary Temperature Network Monitoring System Based on the Linear Frequency Shift of Spectrum |
WANG Gao, LIU Shao-cong, WEN Qiang, ZHAO Hui, ZHAO Yu |
National Key Laboratory for Electronic Measurement Technology,Key Laboratory of Instrumentation Science and Dynamic Measurement, North University of China, Taiyuan 030051, China |
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Abstract In order to obtain the distribution of the temperature in the range of the granary precisely and stably, we designed a temperature measurement system of the fiber Bragg grating. Through the fiber-optic network the system can detect granary temperature in a wide range, and there is a linear relationship between the measured temperature by fiber Bragg grating and the center wavelength, so according to the function of spectrum linear frequency shift it obtained precise temperature in the granary. The working wavelengths of each grating in the system are separated from each other. After reflected by 3 dB coupler, the wavelength detection and demodulation system was used to measure the linear frequency shift of the plurality grating, and the system can get temperature data of everywhere in the granary. The experimental obtained the temperature information by equipments, such as LPT-101 light source, optical fiber with FBG encapsulated, magnification processing circuit, simulation granary, etc. With Origin software the diagram of the relationship between the frequency shift of the measured temperature and wavelength was drawn, and compared with the traditional measuring method of the K-type thermocouple measurement data. Experimental results show that the measured temperature of the fiber Bragg grating is closer to standard temperature, and the anti-jamming ability can meet the requirements of the granary large range temperature monitoring.
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Received: 2012-11-06
Accepted: 2013-01-25
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Corresponding Authors:
LIU Shao-cong
E-mail: gxx@nuc.edu.cn
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[1] ZHANG Xiao-li, LIANG Da-kai, LU Ji-yun(张晓丽, 梁大开, 芦吉云). Chinese Journal of Lasers(中国激光),2011, 1: 126. [2] LI Xiao-lu, JIANG Yue-song(李小路, 江月松). Acta Optica Sinica(光学学报). 2006, 10: 111. [3] LIU Fen, WU Bao-jian, CHENG Li-wei(刘 芬, 武保剑, 程立伟). Laser & Optoelectronics Progress(激光与光电子学进展),2010, 2: 72. [4] SHAO Min, QIAO Xue-guang, ZHAO Xue(邵 敏, 乔学光, 兆 雪). Spectroscopy and Spectral Analysis(光谱学与光谱分析),2012, 32(9): 16. [5] LI Xiao-lu, JIANG Yue-song(李小路, 江月松). Science in China(Series E: Information Sciences) (中国科学E辑: 技术科学),2006, 11: 105. [6] JIA Zhen-an, QIAO Xue-guang, LI Ming(贾振安, 乔学光, 李 明). Laser Technology(激光技术),2004, 3: 86. [7] Kenneth O Hill, Gerald Meltz. Journal of Lightwave Technology, 1997,15(8):1263. [8] Chong S S, Chong W Y. Optics & Laser Technology,2012, 44:821. [9] YUAN Zi-lin, GONG Yuan, MA Yao-yuan(袁子琳, 龚 元, 马耀远). Acta Photonica Sinica(光子学报),2012, 10: 1. [10] Lee B. Optical Fiber Technology,2003, 9(2): 57. [11] ZHENG Li-lin, WANG Lian-fen, ZHANG Yu(郑立林, 王莲芬, 张 瑜). Infrared and Laser Engineering(红外与激光工程),2007, s2: 622. [12] Iodice M, Striano V, Cappuccino G. IEEE Xplore Restrictions Apply,2010, 3: 1. [13] CAO Ye, LIU Bo, LIU Li-hui(曹 晔, 刘 波, 刘丽辉). Journal of Transcluction Technology(传感技术学报),2005, 1: 180. [14] Rao Y J. Meas. Sci. Technol.,1997, 8(4): 355. |
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