Photographic measurement of the detonation velocity of explosives by high-speed camera and its comparison with other methods

Yuji Ogata; Yuji Wada; Kunihisa Katsuyama; Gui-Chen Ma

doi:10.1117/12.209558

30 May 1995 Photographic measurement of the detonation velocity of explosives by high-speed camera and its comparison with other methods

Yuji Ogata, Yuji Wada, Kunihisa Katsuyama, Gui-Chen Ma

Author Affiliations +

Proceedings Volume 2513, 21st International Congress on: High-Speed Photography and Photonics; (1995) https://doi.org/10.1117/12.209558
Event: High-Speed Photography and Photonics: 21st International Congress, 1994, Taejon, Korea, Republic of

Abstract

It is important to measure the detonation velocity of the explosives for considering the detonation performance of explosives. In this paper the Dautriche test method and the resistance wire method were carried out to measure the detonation velocity of explosives and observed these measuring method by high-speed camera at the same time. The results by two measuring methods were compared with each other. In the Dautriche test method the propagation and the collision of detonation of detonating fuse on the lead plate can be observed with high-speed camera. In the resistance wire method the detonation velocity of explosives was measured continuously. But there was delay time caused by the short circuit between the resistance wire and the stainless tube. The delay time was compared with the observation results of high-speed camera. It took a few microsecond(s) to generate the short circuit between the stainless tube and the resistance wire. The sample explosives which were measures with three kinds of methods was same kind of emulsion slurry explosives. The detonation velocity indicated same value on all kinds of methods.

Citation Download Citation

Yuji Ogata, Yuji Wada, Kunihisa Katsuyama, and Gui-Chen Ma "Photographic measurement of the detonation velocity of explosives by high-speed camera and its comparison with other methods", Proc. SPIE 2513, 21st International Congress on: High-Speed Photography and Photonics, (30 May 1995); https://doi.org/10.1117/12.209558

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