Research on Explosive Temperature Network Monitoring System Based on the Linear Frequency Shift of Spectrum
WEN Qiang1, LIAN Su-jie2, ZHANG Chen1, ZHAO Hui1, ZHAO Yu1, WANG Gao1, 3*, XU De-gang3, YAO Jian-quan3
1. National Key Laboratory for Electronic Measurement Technology, Key Laboratory of Instrumentation Science and Dynamic Measurement, North University of China，Taiyuan 030051，China 2. Baicheng Ordance Test Center，Baicheng 137001，China 3. Institute of Laser and Optoelectronics of Tianjin University, Tianjin 300072, China
Abstract：In order to obtain the different position temperature changes in the process of explosive casting accurate, stability and comprehensive, we designed the temperature monitoring system based on fiber Bragg grating spectral shift. Through the fiber-optic network，the system can monitor the different point temperature of melt-cast explosive real-time. According to the function of linear frequency shift of fiber Bragg grating wavelength with the grating of temperature，we get the temperature of different positions. Four channels share a broadband light source with a coupler. The Bragg wavelengths of the 5 gratings of each fiber are separated from each other. Using the gratings designed, spliced and packaged by our own, we can obtain temperature data through the demodulator. The temperature data was processed by the Origin to draw diagram time-temperature curve. The results show that the measured temperature data of the fiber Bragg grating can meet the requirements of experiment.
Key words：Fiber Bragg grating;Explosive casting;Temperature detection;Temperature gradient;Frequency shift of spectrum
闻 强1，连素杰2，张 陈1，赵 辉1，赵 宇1，王 高1, 3*，徐德刚3，姚建铨3 . 光谱频移的炸药熔铸温度网络监测系统研究 [J]. 光谱学与光谱分析, 2014, 34(03): 592-596.
WEN Qiang1, LIAN Su-jie2, ZHANG Chen1, ZHAO Hui1, ZHAO Yu1, WANG Gao1, 3*, XU De-gang3, YAO Jian-quan3 . Research on Explosive Temperature Network Monitoring System Based on the Linear Frequency Shift of Spectrum . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2014, 34(03): 592-596.
