Re: [ATM] Ultrathin mirror support study

[Michael Peck <mpeck1@ix.netcom.com>]

At 17:07 2/2/06, Dale Eason wrote:


>The original idea was to watch the figure rotate.
>What rotated must be on the mirror and what does not
>must be test stand. Here is a movie that Steve Koehler
>made of the results.
>
>http://www.visi.com/~mkoehler/eason_davis_astig/anim.html
>

Does anyone else have trouble getting these animations to animate? 
Pressing the "Start" button just repeatedly loads the pictures 
without ever displaying them. I can step through them in sequence though.

Of course the idea of separating out "test stand" effects rests on 
the assumption that the mirror responds to gravity the same as it's 
rotated. Obviously that's not the case here. You still might get a 
more or less accurate picture of the mirror's figure by averaging 
derotated interferograms if you assume the mirror flops around in a 
completely random fashion as you rotate it.

Mike Peck


_________________

Michael Peck
email mpeck1@ix.netcom.com
Wildlife photoblog http://wildlife-pix.com
Amateur telescope making http://home.earthlink.net/~mlpeck54/astro/astro.html 

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