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| 40m Log |
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 Mon Dec 19 22:05:09 2016, Koji, Summary, IOO, PMC, IMC aligned. The ringdown PD/Lens removed.
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 Wed Dec 21 21:03:06 2016, Koji, Summary, IOO, IMC WFS tuning 
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Thu Dec 22 18:39:09 2016, Koji, Summary, IOO, IMC WFS tuning
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Fri Dec 23 20:53:44 2016, Koji, Summary, IOO, IMC WFS tuning
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Fri Dec 23 21:05:56 2016, Koji, Summary, IOO, IMC WFS tuning
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Sun Dec 25 14:39:59 2016, Koji, Summary, IOO, IMC WFS tuning
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Mon Dec 26 12:45:31 2016, Koji, Summary, IOO, IMC WFS tuning
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Thu Dec 29 13:22:21 2016, rana, Summary, IOO, IMC WFS tuning
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Thu Dec 29 16:52:51 2016, Koji, Summary, IOO, IMC WFS tuning
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Thu Dec 29 21:35:30 2016, rana, Summary, IOO, IMC WFS tuning
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Tue Jan 24 01:04:16 2017, gautam, Summary, IOO, IMC WFS RF power levels
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Fri Jan 27 00:14:02 2017, gautam, Summary, IOO, IMC WFS RF power levels
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Message ID: 12682
Entry time: Thu Dec 22 18:39:09 2016
In reply to: 12680
Reply to this: 12683
12688
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| Author: |
Koji |
| Type: |
Summary |
| Category: |
IOO |
| Subject: |
IMC WFS tuning |
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Noise analysis of the WFS error signals.
Attachment 1: All error signals compared with the noise contribution measured with the RF inputs or the whitening inputs terminated.
Attachment 2: Same plot for all the 16 channels. The first plot (WFS1 I1) shows the comparison of the current noise contributions and the original noise level measured with the RF terminated with the gain adjusted along with the circuit modification for the fair comparison. This plot is telling us that the electronics noise was really close to the error signal.
I wonder if we have the calibration of the IMC suspensions somewhere so that I can convert these plots in to rad/sqrtHz...? |
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