| 光谱学与光谱分析 |
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| Based on THz Spectroscopy Detection Method for the Concentration of 1,3-Dinitrobenzene Volatile Gas |
| ZHAO Hui1，2, WANG Gao1,2, MA Tie-hua1,2 |
1. Key Laboratory of Instrumentation Science &Dynamic Measurement (North University of China), Ministry of Education, Taiyuan 030051, China
2. National Key Laboratory of Science and Technology on Electronic Test and Measurement (North University of China), Taiyuan 030051, China |
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Abstract For the unexpected situations occur that 1,3-dinitrobenzene volatile gas leaks in industrial production process, designed the differential characteristics absorption detection system for 1,3-dinitrobenzene volatile gas based on THz spectrum technique. The method can detect the concentration of trace 1,3-dinitrobenzene toxic gases through the THz characteristic wavelengths differential absorption method. System dealt with THz characteristics wavelengths of the two chambers, which provide difference dates, a group is standard air, and the other group tested the sample gas. Four main absorption bands of 1,3-dinitrobenzene is at 0.635, 0.912, 1.095 and 1.435 THz nearby in detection results, and according to the ratio of absorption coefficient in the corresponding absorption band it calculated the accurate amplitude from the corresponding wavelengths, at last the gas concentration was inversed. After the two traditional methods (chromatography and infrared absorption method) of experimental analysis and THz absorption detection method of the simulation study shows, precision of the detection capabilities of chromatography is high and error is small. But the chromatography separation time varies with the material, long cycle, slow; chromatography can not achieve real-time detection speed to realize real-time detection. Infrared absorption of environmental humidity is high, subject to drying. At the same time, THz absorption of environmental humidity is low; THz absorption method also has important characteristics of real time, strong anti-jamming, especially the water vapor, so it is more suitable for practical application.
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Received: 2011-05-09
Accepted: 2011-08-28
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Corresponding Authors:
ZHAO Hui
E-mail: zhaohui_nuc@163.com
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[1] WANG Ying-xin, CHEN Zhi-qiang, ZHAO Zi-ran(王迎新, 陈志强, 赵自然). Optical Technique(光学技术)，2007, 33(4): 587.
[2] HU Ying, ZHANG Cun-lin, GUO Lan-tao(胡 颖, 张存林, 郭澜涛). Physics(物理)，2007, 36(1): 68.
[3] XIE Wei-xin, PEI Ji-hong(谢维信, 裴继红). Acta Electronica Sinica(电子学报)，2007, 35(10): 1973.
[4] TANG Yuan-yuan, LIU Wen-qing, KAN Rui-feng(汤媛媛, 刘文清, 阚瑞峰). Acta Physica Sinica(物理学报), 2010, 59(4): 2365.
[5] ZHENG Long-jiang, LI Peng, QIN Rui-feng(郑龙江, 李 鹏, 秦瑞峰). Laser & Optoelectronics Progress(激光与光电子学进展)，2008, 45(8): 24.
[6] GUO Wen-ting, LI Xiu-li, WEI Tian-xin(郭文婷, 李秀丽, 韦天新). Progress in Chemistry(化学进展), 2008, 20(1): 155.
[7] WANG Gao, ZHOU Han-chang, YAO Bao-dai(王 高, 周汉昌, 姚宝岱). Laser & Optoelectronics Progress(激光与光电子学进展)，2011, 48(1): 1.
[8] ZHAO Jian-hua, ZHAO Chong-wen, WEI Zhou-jun(赵建华, 赵崇文, 魏周君). Acta Optica Sinica(光学学报)，2010, 30(2): 567.
[9] WU Liang, LING Fu-ri, LIU Jin-song(吴 亮, 凌福日, 刘劲松). Laser & Optoelectronics Progress(激光与光电子学进展)，2009, 46(7): 29.
[10] CAI He, GUO Xue-jiao, HE Ting(蔡 禾, 郭雪娇, 和 挺). Chinese Journal of Optics and Applied Optics(中国光学与应用光学)，2010, 3(3): 209.
[11] LIANG Cheng-sen, ZHAO Guo-zhong(梁承森, 赵国忠). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2011, 31(2): 323.
[12] LI Xue-bao, XU Jun, DENG Lin-hua(李雪宝, 许 骏, 邓林华). Modern Electronic Technology(现代电子技术)，2010, 3(1): 145.
[13] BAO Ri-ma, ZHAO Kun, TIAN Lu(宝日玛, 赵 昆, 田 璐). Scientia Sinica(中国科学)，2010, 40(8): 950.
[14] Bernd M Fischer, Hanspeter Helm, Peter Uhd Jepsen. Proceedings of the IEEE，2007, 95(8): 1592. |
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