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 Wed Aug 27 18:03:47 2014, ericq, Update, Green Locking, uPDH Box Checkup 
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 Thu Aug 28 17:34:20 2014, ericq, Update, Green Locking, uPDH Box Checkup
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Fri Aug 29 17:28:07 2014, rana, Update, Green Locking, uPDH Box Checkup
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Fri Aug 29 23:53:35 2014, ericq, Update, Green Locking, uPDH Box Checkup
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Tue Sep 2 20:02:06 2014, ericq, Update, Green Locking, uPDH Box Checkup
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Wed Sep 3 00:17:22 2014, rana, Update, Green Locking, uPDH Box Checkup
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Wed Sep 3 20:38:40 2014, ericq, Update, Green Locking, uPDH Box Checkup
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Fri Sep 5 04:07:44 2014, ericq, Update, Green Locking, X end uPDH Box Replaced
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Fri Sep 5 16:13:00 2014, ericq, Update, Green Locking, new X Green PDH measurements 6x
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Sat Sep 6 01:48:54 2014, rana, Update, Green Locking, new X Green PDH measurements
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Sat Sep 6 14:49:12 2014, ericq, Update, Green Locking, new X Green PDH measurements
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Sun Sep 7 17:06:38 2014, rana, Update, Green Locking, new X Green PDH measurements
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Mon Sep 8 14:14:13 2014, Jenne, Update, Green Locking, new Y Green PDH measurements 6x
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Message ID: 10463
Entry time: Sat Sep 6 01:48:54 2014
In reply to: 10460
Reply to this: 10464
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| Author: |
rana |
| Type: |
Update |
| Category: |
Green Locking |
| Subject: |
new X Green PDH measurements |
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| Quote: |
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Does this matter? Is there something in my simulation that I can correct that would give a more accurate calibration?
Data, plots, code, attached.
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What modulation depth are you using for the simulation? I have never seen a real measurement of that in our elog for the end-PDH systems.
I also disbelieve your RMS calculations. It looks like in the 1.5-0.5 Hz band we're picking up 50 kHz of frequency noise even though the 1 Hz peak is only 80 Hz/rHz, even though math says "80 * sqrt(1) = 80".
Take a look at:
http://www.mathwords.com/r/root_mean_square.htm
and
http://www.ligo.caltech.edu/~rana/mat/utilities/rms.m |