Looking for a high speed chronograph

FullEffect1911 · November 7, 2005, 11:24 AM

I am looking to get a chronograph that is capable of measuring a steel .22 cal projectile moving at speeds of about 4500 fps possibly up to 5000 fps. The unit has to be capable of being used indoors and preferably plugs into the wall, not battery powered.

If anyone knows any good chronos that will fall under these criteria. I would very much like to hear about them.

Thanks FE1911

TimRB · November 7, 2005, 01:23 PM

Railgun, huh?

Tim

sdb777 · November 7, 2005, 01:30 PM

Most any chrono will show those projectile speeds. Won't they? As far as plugging the thing into the wall.....can't help you there? Mine uses a 9v battery.

Railgun? Don't they use some kind of electro magnetic system firing projectiles at velocities above 2,000 miles(that's miles) per second or something foolish like that? Don't think a chrono is going to pick that up.....but good luck anyway.

Jim Watson · November 7, 2005, 02:23 PM

I think most any chronograph will read to 5000 fps. If not, it could be made to by increasing screen separation and a software or manual arithmetic correction made.

Oehler and CED both sell IR illuminators for indoor velocity measurement with their regular chronographs. CED has a simpler cheaper incandescent lighting fixture and it would not be hard to rig one over the Oehler or other chronograph. The only no-no for indoor chrongraph illumination is fluorescent tubes which have a 60 cycle flicker invisible to the naked eye but which will badly confuse a chronograph sensor.

http://www.cedhk.com/show.php/Object29

http://www.oehler-research.com/

You can go all the way to an Oehler 43 personal ballistics lab and get a lot of data... for a lot of money.

LotI · November 7, 2005, 03:33 PM

For $100 you can get this one that measures from 22-7000fps.
Midway USA

November 7, 2005, 11:24 AM	#1
FullEffect1911 Member Join Date: January 31, 2005 Posts: 61	Looking for a high speed chronograph I am looking to get a chronograph that is capable of measuring a steel .22 cal projectile moving at speeds of about 4500 fps possibly up to 5000 fps. The unit has to be capable of being used indoors and preferably plugs into the wall, not battery powered. If anyone knows any good chronos that will fall under these criteria. I would very much like to hear about them. Thanks FE1911

November 7, 2005, 01:30 PM	#3
sdb777 Member Join Date: October 2, 2005 Location: Cabot, Arkansas USA Posts: 73	Most any chrono will show those projectile speeds. Won't they? As far as plugging the thing into the wall.....can't help you there? Mine uses a 9v battery. Railgun? Don't they use some kind of electro magnetic system firing projectiles at velocities above 2,000 miles(that's miles) per second or something foolish like that? Don't think a chrono is going to pick that up.....but good luck anyway. __________________ A good sermon should have a good beginning and a good ending, and they should be as close together as possible. George Burns

November 7, 2005, 03:33 PM	#5
LotI Member Join Date: April 19, 2005 Location: America's Dairyland Posts: 47	For $100 you can get this one that measures from 22-7000fps. Midway USA __________________ <insert witty signature here>

November 7, 2005, 01:23 PM	#2
TimRB Senior Member Join Date: May 18, 2004 Posts: 1,049	Railgun, huh? Tim

November 7, 2005, 02:23 PM	#4
Jim Watson Senior Member Join Date: October 25, 2001 Location: Alabama Posts: 18,541	I think most any chronograph will read to 5000 fps. If not, it could be made to by increasing screen separation and a software or manual arithmetic correction made. Oehler and CED both sell IR illuminators for indoor velocity measurement with their regular chronographs. CED has a simpler cheaper incandescent lighting fixture and it would not be hard to rig one over the Oehler or other chronograph. The only no-no for indoor chrongraph illumination is fluorescent tubes which have a 60 cycle flicker invisible to the naked eye but which will badly confuse a chronograph sensor. http://www.cedhk.com/show.php/Object29 http://www.oehler-research.com/ You can go all the way to an Oehler 43 personal ballistics lab and get a lot of data... for a lot of money.