RE: [ATM] Mirror Round Robin and some in-house test results

["Scott Milligan" <starzkey@charter.net>]

James:

Yes, very interesting indeed.  A fast look at the results suggests that
reasonable agreement between Foucault and interferometry exists when
astigmatism is not the largest error present (cylinder and or trefoil).
Robo-Foucault seems to be "out in left field", however, and optimistic every
time.  Do you share the same conclusions?

I will try to find some time over the next few days to study the information
more carefully.


Scott Milligan

-----Original Message-----
From: atm-bounces@atmlist.net [mailto:atm-bounces@atmlist.net] On Behalf Of
James Lerch
Sent: Monday, January 10, 2005 1:51 PM
To: atm_free@yahoogroups.com; ATM
Subject: [ATM] Mirror Round Robin and some in-house test results

Greetings All,

I've been working on a spread sheet comparing various forms of testing.  The
spread sheet contains the results for 9 different optics, ranging from 6
inch to
16 inch.

The first three optics are the compiled results from the ATM mirror round
robin
effort.  These three mirrors were tested by a dozen ATM's using couder mask
testing, my Robo Foucault, as well as tested with three different
interferometers, two of which were based on Fringe Tracing results, and one
(Roger Ceragioli's) was based on Phase Shifting Results

The last 6 optics, are amateur optics I've tested using both my Robo
Foucault
and my Fizeau interferometer.

I hope you find the results interesting, here's a link to the excel file:

http://lerch.no-ip.com/atm/Inter/Fringes_and_Foucault/Test_Comp.xls

Take Care,
James Lerch
http://lerch.no-ip.com/atm (My telescope construction,testing, and coating
site)

"Anything that can happen, will happen" -Stephen Pollock from:
"Particle Physics for Non-Physicists: A Tour of the Microcosmos"

" Press on: nothing in the world can take the place of perseverance.
Talent will not; nothing is more common than unsuccessful men with talent.
Genius will not; unrewarded genius is almost a proverb.
Education will not; the world is full of educated derelicts.
Persistence and determination alone are omnipotent. "
                                                           Calvin Coolidge 

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