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Fri Sep 20 12:55:02 2019, gautam, Update, CDS, c1iscaux testing
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Mon Sep 23 10:49:34 2019, rana, Update, CDS, c1iscaux testing
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Wed Sep 25 20:10:13 2019, Koji, Update, CDS, c1iscaux testing 
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Thu Sep 26 20:09:40 2019, Koji, Update, CDS, c1iscaux testing    
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Fri Sep 27 15:59:53 2019, gautam, Update, CDS, c1iscaux testing
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Wed Oct 2 01:11:40 2019, Koji, Update, CDS, c1iscaux testing 8x
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Fri Oct 4 01:57:09 2019, Koji, Update, CDS, c1iscaux testing   
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Sat Oct 5 00:03:21 2019, Koji, Update, CDS, c1iscaux testing   
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Tue Oct 8 03:32:42 2019, Koji, Update, CDS, CM servo board testing 7x
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Tue Oct 8 17:59:29 2019, Koji, Update, CDS, CM servo board testing (portal) 6x
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Tue Oct 8 18:42:39 2019, Koji, Update, CDS, CM servo board testing
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Mon Oct 14 16:06:28 2019, Koji, Update, CDS, CM servo board testing
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Mon Oct 14 16:19:30 2019, Koji, Update, CDS, CM servo board testing
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Mon Oct 14 16:25:03 2019, Koji, Update, CDS, CM servo board testing
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Mon Oct 14 16:34:42 2019, Koji, Update, CDS, CM servo board testing  
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Mon Oct 14 17:32:28 2019, Koji, Update, CDS, Portal Elog entry for the recent CM servo board tests
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Tue Oct 8 20:23:03 2019, gautam, Update, CDS, c1iscaux testing
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Mon Sep 30 11:20:43 2019, gautam, Update, CDS, c1iscaux testing - CM board code updated
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Mon Sep 30 15:51:59 2019, gautam, Update, CDS, c1iscaux - some admin
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Message ID: 14970
Entry time: Mon Oct 14 17:32:28 2019
In reply to: 14968
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Author: |
Koji |
Type: |
Update |
Category: |
CDS |
Subject: |
Portal Elog entry for the recent CM servo board tests |
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Updated Circuit Diagram and photos: https://dcc.ligo.org/D1500308-v2
- (1) and (6) of the diagram: TFs with various gain slider values for REFL1/REFL2/AO GAIN [ELOG 14948] (gain values and time delay modeling)
- Switching checks, latest photo of the board, Limiter check [ELOG 14953]
- (2): Boost transfer functions [ELOG 14955]
- (3): Slow (aka Length) CM output path [ELOG 14965]
- (4): Pole-Zero filter TF [ELOG 14965]
- (5): TF from TESTA2 to TESTB2 [ELOG 14966]
- (6): AC coupling TF of the AO GAIN stage [ELOG 14967]
- (7): AC coupling TF of the IN2 stage on IMC servo board [ELOG 15044]
Slow path = (1)*(2 if necessary)*(3)*(4 if necessary)
Fast path = (1)*(2 if necessary)*(4 if necessary)*(5)*(6)
gautam 20191122: Adding the measured AC coupling of the IN2 input of the IMC servo board for completeness. |
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