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| 40m Log |
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 Fri Sep 18 13:33:17 2015, ericq, Update, LSC, Fast ALS troubles - Noise at 36kHz 
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 Fri Sep 18 16:08:41 2015, ericq, Update, LSC, Fast ALS troubles - Noise at 36kHz
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Fri Sep 18 19:15:35 2015, rana, Update, LSC, Fast ALS troubles - Noise at 36kHz
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Tue Sep 29 16:52:49 2015, ericq, Update, LSC, Fast ALS troubles - unknown zero
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Tue Sep 29 18:03:11 2015, rana, Update, LSC, use LISO
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Wed Sep 30 10:00:02 2015, ericq, Update, LSC, used LISO
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Fri Oct 2 03:29:16 2015, ericq, Update, LSC, Fast ALS progress - AO path crossed over, but no high BW
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Fri Oct 9 13:31:21 2015, ericq, Update, LSC, ALS plant shape
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Fri Oct 9 14:50:18 2015, Koji, Update, LSC, ALS plant shape
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Fri Oct 9 16:23:25 2015, ericq, Update, LSC, ALS plant shape
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Tue Oct 13 16:28:21 2015, ericq, Update, LSC, Fast ALS pomona
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Message ID: 11649
Entry time: Tue Sep 29 18:03:11 2015
In reply to: 11648
Reply to this: 11651
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| Author: |
rana |
| Type: |
Update |
| Category: |
LSC |
| Subject: |
use LISO |
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Use LISO - see what it tells you. I would think that you should make a differential RC filter to get the right behavior. (e.g. 1K on each leg and 1 uF between them)
Each leg of the diff input of the board has a 4k input impedance.
But surely the AO input to the MC servo should also make sense independently. |
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