jackssmirkingrevenge wrote:D_Hall wrote:Yup. It's a lot easier to spin a small mirror than it is to spin a whole stinkin' camera.
Quite a bit of timing precision needed though.
I have the materials to do this type of stuff except the expensive high speed camera. To move the mirror on command at high speed, a Galvanometer is used with a feedback winding. This is the same class of servo system used to paint with laser light for laser lightshows. Given the known projectile velocity and path, the path of the mirror can be pre-programmed and triggerd by the projectile exiting the muzzle.
For more information on this galvo servo and the positioning speeds possible, google search Laser Galvanometer with feedback. The closed loop feedback gives them the positioning accuracy.