Why make it so hard Flash? The Police can do it with Radar guns so why can't we?
Your idea is an adaption of current radar chrono's I was thinking of a new device not an adaption.
'All' that needs to happen is you pick up a signal from a rapidly moving object and measure it's distance at two time intervals. By telling the time taken to travel that distance you can tell it's velocity.
The first point that it picks up a signal should be right next to the muzzle and then second point doesn't matter. If you are sampling quick enough on any objects in the immediate vicinity of the aimed location then there won't be a period of the ball being in flight before being measured. But then who cares if there is? The ball should only be slowing down so if you measure it at 2 feet from the end of the barrel and at 5 feet from the end and it's hot then it was damn well hot when it left the muzzle and the guy's caught anyway.
If the police can do it with radar guns I'm sure we can do it for a chrono... Just need a decent electronics bod to implement it
I believe current radar chrono's work by emmiting a 'bubble' and then measuring the difference of an object moving through it. It won't matter on what direction/angle the object is moving as long as it is in that 'bubble'. That's the whole point...
manike