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Messages - wally_x

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General high-speed discussion / Re: Speed Calculations
« on: July 18, 2019, 01:14:48 PM »
Awesome! Thanks again for you help!!

General high-speed discussion / Re: Speed Calculations
« on: July 14, 2019, 07:08:58 PM »
So basically if my object moves 2 ft on my chart in 10 frames and I was shooting at 2000fps then the math is something like:

10 divided by 2000 = .005 seconds. That divided by 2 gives me .0025 ft/sec, which I can convert to mph or anything else. This sound right?

General high-speed discussion / Speed Calculations
« on: July 14, 2019, 06:28:39 PM »
Hello, I was wondering if someone could help me with the math on calculating the speed of a moving object that I record with my Chronos.

I've built what I call a "speed chart" (black and whiteboard behind the moving object like on Mythbusters) and I know my capture frame rate and my playback frame rate, but not sure what the equation is. Especially with the capture speed vs the save or "playback speed".

Any help would be much appreciated!

Chronos User Discussion / Re: trigger cable for IO1 (BNC)
« on: October 18, 2017, 05:55:15 PM »
I bought a cheap 75ohm bnc cable on amazon and it fit and worked fine.

I also used a normally close button in my diy trigger (just used what I had laying around and didn't see this post in time) but it works fine. I just click the invert button in the trigger control panel.

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