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Sensors 2017, 17(11), 2552; https://doi.org/10.3390/s17112552

Detonation Velocity Measurement with Chirped Fiber Bragg Grating

School of Instrument Science and Opto-Electronics Technology, Beihang University, Beijing 100191, China
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Received: 6 September 2017 / Revised: 21 October 2017 / Accepted: 31 October 2017 / Published: 6 November 2017
(This article belongs to the Special Issue Fiber Bragg Grating Based Sensors)
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Abstract

Detonation velocity is an important parameter for explosive, and it is crucial for many fields such as dynamic chemistry burn models, detonation propagation prediction, explosive performance estimation, and so on. Dual-channel detonation velocity measurement method and system are described. The CFBG sensors are pasted both on the surface and in the center of the explosive cylinder. The length of CFBG sensors is measured via the hot-tip probe method. The light intensity reflected from the CFBG sensors attached to the explosive is transformed to voltage, and the voltage–time is then measured with the oscilloscope. According to the five experiments results, the relative standard uncertainty of detonation velocity is below 1%. View Full-Text
Keywords: chirped fiber Bragg grating; detonation velocity; relative standard uncertainty chirped fiber Bragg grating; detonation velocity; relative standard uncertainty
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Wei, P.; Lang, H.; Liu, T.; Xia, D. Detonation Velocity Measurement with Chirped Fiber Bragg Grating. Sensors 2017, 17, 2552.

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