Research on Detecting Explosive Content of 2,4-Dimitroanisole Based on THz Spectroscopy
WANG Gao1,2,3, XU De-gang1,2, YAO Jian-quan1,2
1. Institute of Laser and Optoelectronics，College of Precision Instrument and Optoelectronics Engineering，Tianjin University，Tianjin 300072，China 2. Key Laboratory of Optoelectronics Information and Technical Science, (Ministry of Education), Tianjin University，Tianjin 300072，China 3. Key Laboratory of Instrument Science & Dynamic Measurement (North University of China), Ministry of Education, Taiyuan 030051, China
Abstract：In order to detect the content of a new kind of insensitive melting-cast explosive (DNAN), the system detected the THz characteristics wavelength of DNAN, and solved the content of DNAN by the Bill-Lambert law. Time coherent THz spectroscopy detection system was designed, in which the master system controlled stepper motor to get the micro-scanning of the photoelectric detector. The system parameters were calculated and derived for solving the content of DNAN, and THz characteristic spectrum of DNAN was obtained. Experiment used three methods to detect explosives samples with different content of DNAN, and the results show that the accuracy of this system is close to that of MINI-Z terahertz spectrometer currently broadly applied in THz spectroscopy detection equipment at home and abroad. On this basis, the optimization algorithm of characteristic absorption peak was designed, and by the origin software simulation analysis, it shows that the algorithm can further improve accuracy and stability of the detection system.
王 高1, 2, 3，徐德刚1，2，姚建铨1,2 . THz光谱技术检测DNAN炸药含量的研究 [J]. 光谱学与光谱分析, 2013, 33(04): 886-889.
WANG Gao1,2,3, XU De-gang1,2, YAO Jian-quan1,2 . Research on Detecting Explosive Content of 2,4-Dimitroanisole Based on THz Spectroscopy . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2013, 33(04): 886-889.
