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Wed Jul 20 14:42:34 2011, steve, Update, SUS, oplev gains today
Wed Jul 20 19:24:12 2011, rana, Update, SUS, oplev gains today
Wed Jul 20 19:48:03 2011, Jamie, Update, SUS, Re: oplev gains today
Thu Jul 21 09:04:59 2011, valera, steve, Update, SUS, oplev gains were not optimized
Mon Jul 25 00:35:44 2011, rana, Update, SUS, something wrong with ETMY LR sensor
Tue Jul 26 11:38:45 2011, steve, Update, SUS, ETMY bias checked
Thu Jul 21 16:06:35 2011, steve, Update, SUS, oplev gains today checked by conlog
Thu Jul 21 09:04:59 2011
In reply to:
oplev gains were not optimized
I did change the ETMY optical lever configuration:
And I left it in that state per Jamie's request.
I was going to work on the servo tuning but found that the whitening was not working at that time.
What I was going to do is to measure the open loop gain to make sure the servo is stable, then
measure the noise and minimize the rms motion by tuning the gain and the filter transfer function.
I plan to come to the 40m lab on August 22 for two weeks.