Friday, December 11, 2015

High Speed Bullet Photography

Odos Imaging CEO Chris Yates publishes an article in Vision Systems Design showing its high speed camera capabilities in shooting a bullet:

Camera measures the bullet deceleration due to the air drag

10 comments:

  1. Not being a ballistics expert at all, but it seems a bit unlikely that the bullet would lose almost 7% of its kinetic energy while travelling 15 cm? Must be a measurement error? ;-)

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    Replies
    1. ~7.5cm actually ;-)

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    2. It's probably due to the photon -bullet drag interaction; or in other words, position-momentum instantaneous uncertainity.

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  2. This is mostly strobe photography using NIR pulsed light sources to capture multiple exposures in the same frame. The speed of the camera is not that important, nor the global shutter, as far as I can tell from the article.
    The strange deceleration is hard to explain. Perhaps some sort of measurement artifact?

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  3. Assuming linear drag, the bullet will stop after 2m...

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    Replies
    1. maybe shot in water ?

      -yang

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  4. Have you ever tried to throw a beach ball really fast?

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  5. Finally a bullet that will not kill people because it lost its energy before reaching its target ....

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    Replies
    1. a bulletproof bullet...

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  6. simple gut check with ballistic charts would have this sent back.

    223 Remington 50 grain V max bullet sheds about 11% velocity first 100 yards, 13% from 100 to 200 yards

    Other ammo/bullet styles would have slight differences, but not in that order of magnitude

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