New electrically driven streak camera for shaped-charge jet diagnostics

Manfred Held

doi:10.1117/12.209603

30 May 1995 New electrically driven streak camera for shaped-charge jet diagnostics

Manfred Held

Proceedings Volume 2513, 21st International Congress on: High-Speed Photography and Photonics; (1995) https://doi.org/10.1117/12.209603
Event: High-Speed Photography and Photonics: 21st International Congress, 1994, Taejon, Korea, Republic of

Abstract

The straightness of the jet is the most challenging problem in shaped charge technology. Hence, the deviation of the jet from the symmetry axis originating from the collapse zone and, additionally, the dispersion velocities generated during the particulation processes are of crucial interest. In order to measure these quantities, one must look perpendicularly to the jet in at least two distances from the jet origin. To achieve this in an expedient and economic way, the author has developed a new electrically driven streak camera. At a writing speed of 1 mm/microsecond(s) the recording time is about 100 microsecond(s) . Such a long continuous recording time is needed to observe the jet as it passes at longer standoffs, and to obtain a highly accurate measurement of the jet straightness in two dimensions. The camera can also be applied in analyzing the 'normal' jet characteristics such as jet velocity distribution, accumulated jet length, accumulated particulization time, discrete particulation times, discrete particulation distances, jet diameter, jet surface characterization etc. By using as many commercially available components as possible the costs can be kept relatively low. By using the coincidence of the slit/slit position a build-in-shutter of 1 ms minimum exposure time is integrated in the camera.

Citation Download Citation

Manfred Held "New electrically driven streak camera for shaped-charge jet diagnostics", Proc. SPIE 2513, 21st International Congress on: High-Speed Photography and Photonics, (30 May 1995); https://doi.org/10.1117/12.209603

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