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| Camera measures the bullet deceleration due to the air drag |
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:
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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? ;-)
ReplyDelete~7.5cm actually ;-)
DeleteIt's probably due to the photon -bullet drag interaction; or in other words, position-momentum instantaneous uncertainity.
DeleteThis 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.
ReplyDeleteThe strange deceleration is hard to explain. Perhaps some sort of measurement artifact?
Assuming linear drag, the bullet will stop after 2m...
ReplyDeletemaybe shot in water ?
Delete-yang
Have you ever tried to throw a beach ball really fast?
ReplyDeleteFinally a bullet that will not kill people because it lost its energy before reaching its target ....
ReplyDeletea bulletproof bullet...
Deletesimple gut check with ballistic charts would have this sent back.
ReplyDelete223 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