> Several of us have been speculating on how to go about 
> designing a target
> system for a rifle range that did not use paper targets. 
> Sort of a target
> that could sense the passing of a bullet and determine 
> it's location. We
> assume a target that was 1 meter square and wish to 
> determine the precise
> position of the round as it passes through the square. If 
> the shooter was
> using an semi-automatic weapon, then the position of each 
> round fired would
> have to be recorded. The positioning would have to be 
> fairly precise. Is
> this sort of thing feasible? Ideas?

Capacitive sensing should allow this.

Optical beam-break sensing with enough resolution (beams 
etc) also.
With skill you can get more resolution than channels.

If say bullet is detectable over 1/4" along path then time 
in sensor at 1000 fps is 1/(1000 x 12 x 1/(0.25)) ~= 20 uS.

You will want a visual target - perhaps a "real image system 
that allows you to fire through a visually existent image 
but physically not present object.



        Russell



 

-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist