Date: Fri, 27 Nov 1998 07:34:13 +0200
From: Tom Cichoracki <[EMAIL PROTECTED]>
Hello Chuck,
Thank you for your interest and response. I have replayed below.
Thank you.
Tom Cichoracki
>
>Tom,
>
>If you are interested in capturing image sequences from your system,
>a camera is required that will run at as high a frame rate as you need.
Actually, I had the idea that if I could have a high intensity stroboscope
which could produce short multiple pulses, I could actually get motion
phenomena on one frame/picture. So, two pulses would be enough to determine
size, speed and direction, more than two stroboscope pulse would also give
path information. The problem is I am not sure how to get the whole thing
to work (if it will work).
>We have used various Dalsa cameras, the latest is a 256 by 256
>Motion Vision camera that operates at 955 frames per second.
>This camera requires some type of flashed light to stop motion.
>We have used a LED ring lamp successfully, but we are dealing
>with objects moving at 60 miles an hour. Sounds like your system
>is much faster.
>
I do not actually need a consecutive sequence of images, since the
phenomena occurring in my device occur repeatedly. It is not like videoing
a car crash or books falling. However, if HS video is reasonably priced an
imaging sequence would be nice to have for reporting and playback.
Actually, if I have calculated correctly 60 mph = 30 m/s. My max. is
slightly less than this.
I have up to 24 "wings" on my rotor which turns at a max. of 50 Hz
resulting in a freq. of 1200 Hz. If I were to capture a sequence of images,
I would need at least that speed.
>If you are interested in capturing a sequence of images at 30 frames per
>second, a gated intensifier on a 30 frame per second camera may be adequate.
>You can try Xybion which makes gated intensified cameras.
>
I do not know anything about gated intensified cameras.
>Chuck Petersen
>
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