In order to realize temperature monitoring effectively, a multiple channels data demodulator has been used to detect the temperatures in melt-casting process of explosive, as well as a grating sensor with special package. It introduced the principle of grating sensing, fiber Bragg grating data demodulator and the packaging process of fiber Bragg grating. The obtained temperature data were processed by Metlab and Origin to draw a temperature-time curves. It is most valuable to obtain temperature curves during the process of meltcast explosive especially at the moment when the phase transformation occurred. The results show that the explosive can release latent heat in the process of melt-casting, and the temperature of explosive rises from 88℃ to 90 ℃. The experimental results prove that special packaged fiber Bragg grating sensor can be used well for temperature measurement in explosives melt-casting process.
WANG Xiaoyan①②;WEN Qiang①②;ZHANG Chen①②;YUAN Junming③;ZHAO Hui①②;WANG Gao①②.
Research of Temperature Monitoring for Process of Meltcast Explosives based on Fiber Bragg Grating. Explosive Materials. 2014, 43(1): 34-37 https://doi.org/10.3969/j.issn.1001-8352.2014.01.007