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  40m Log, Page 294 of 341  Not logged in ELOG logo
ID Date Author Type Categoryup Subject Text Attachments
  5718   Fri Oct 21 02:57:38 2011 SureshSummarySUSMC2 Misaligned 2:27PM on Wednesday : cause traced


   
        
            
  
  5719   Fri Oct 21 09:08:33 2011 steveUpdateSUSMC2 Misalignment Thinks to do before the NEXT realignment:
B,  tie 4 ancher bolts on table
legs to the floor
 mc2.jpg 
  5729   Mon Oct 24 17:23:14 2011 SUS_DiagonalizerUpdateSUSOptics kickedThis is a cron-elog test. No optics have been
kicked.
  
  5749   Fri Oct 28 01:13:17 2011 kiwamuUpdateSUSITMX oplev : iris fully openedI found that the sum of the ITMX oplev
signals had gone down to zero yesterday.
I checked the ITMX table and found
  
  5765   Sun Oct 30 23:01:51 2011 ZachUpdateSUSdiagAllSUS -- automated input matrix generatorI finally got around to wrapping up   
  5766   Sun Oct 30 23:03:37 2011 SUS_DiagonalizerUpdateSUSSUS input matrix diagonalization complete (EXAMPLE)New SUS input matrix diagonalization complete.
Matrices have been written to the frontend.
Summaries for each optic can be viewed below.
 10x 
  5770   Mon Oct 31 14:06:16 2011 ZachUpdateSUSSUS input matrix diagonalizer added to crontabI actually tried to do this last night,
but I was getting a terminal error from nodus.
Jamie told me to just manually redefine the
  
  5771   Mon Oct 31 15:58:25 2011 steveUpdateSUSthinking of black glass baffles for 40mShade 12 black glass-green lines: 1/8"
thick,  6" wide  x 7 "
high  mounted on angle bracket below. 
 03260901.PDF03260902.PDF 
  5775   Tue Nov 1 13:46:03 2011 ZachUpdateSUSSUS input matrix diagonalizer REMOVED from crontabIt turns out that nodus doesn't know how
to NDS2, so I can't run diagAllSUS as a cron
job on nodus. To further complicate things,
  
  5776   Tue Nov 1 16:02:15 2011 kiwamuUpdateSUSRe: SUS input matrix diagonalizer REMOVED from crontab

    

       
            
  
  5779   Tue Nov 1 19:26:38 2011 ZachUpdateSUS"Dr. SUS" progressEDIT: Ran Jamie's NDS2 reset method and
it's still not serving up MC data.
  
  5781   Wed Nov 2 01:53:08 2011 ZachUpdateSUS"Dr. SUS" progressNow that NDS2
is working, I was able to run all parts
of 
  
  5782   Wed Nov 2 10:04:05 2011 steveUpdateSUSMC2 chamber anchoring tightened


   
        
            
  
  5784   Wed Nov 2 11:29:04 2011 not ZachUpdateSUS"Dr. SUS" progress

    

       
            
  
  5805   Fri Nov 4 00:25:49 2011 ZachUpdateSUSDr. SUS paths updated--question of human oversight remains
    I have replaced all instances
  
  5814   Fri Nov 4 19:30:06 2011 ranaUpdateSUSDr. SUS paths updated--question of human oversight remainsMy inclination is to not do the writing
of the matrices automatically nor to do the
weekly kicks. Its nice to have long locks
  
  5822   Sat Nov 5 21:19:08 2011 ZachUpdateSUSDr. SUS paths updated--question of human oversight remainsOk, here's the deal:

    For the time being, I
have written a "
  
  5823   Sun Nov 6 09:39:25 2011 Dr. SUSUpdateSUSOptics kickedAll suspended optics have been kicked at Sun
Nov  6 09:39:25 PST 2011. Watchdogs will
be reengaged in 5 hours. Please refrain from
  
  5824   Sun Nov 6 16:58:25 2011 ZachUpdateSUSDr. SUS failed--NDS2 problems again Dr. SUS failed while trying to   
  5844   Wed Nov 9 07:57:39 2011 steveUpdateSUSETMX oplev is down and sus damping restoredThe ETMX oplev returning beam is well centered
on the qpd. We lost this signal 2 days ago.
I will check on the qpd. 
 etmxtripped.pngetmxOpl.png 
  5845   Wed Nov 9 10:35:30 2011 jamieUpdateSUSETMX oplev is down and sus damping restored

    

       
            
  
  5862   Thu Nov 10 12:28:31 2011 JenneUpdateSUSMC2 is being a little wild...WFS to blameMirko and  Den are measuring MC_F,
which they will report about later, but I
noticed that MC2 is totally crazy right now. 
 WFSscreenshot.png 
  5865   Thu Nov 10 19:41:24 2011 JenneUpdateSUSMusings on SUS dewhitening, and MC ELP28'sThe
following will be a stream-of-consciousness,
approximately chronological story of my last
  
  5873   Fri Nov 11 13:26:24 2011 jamieUpdateSUSMusings on SUS dewhitening, and MC ELP28's

    

       
            
  
  5877   Fri Nov 11 21:09:30 2011 SureshUpdateSUSMC2 is being a little wild...WFS to blame


   
        
            
 LOCKMC_screen.png 
  5909   Wed Nov 16 10:25:57 2011 steveUpdateSUSPRM damping restoredThe  PRM lost damping about a day
ago. It was restored.
  
  5927   Thu Nov 17 15:19:06 2011 steveUpdateSUSTi spring plunger to hold OSEM is not affortableOur existing 300 series SS plungers from
McMastercar #8476A43 are silver plated as
Atm2 shows.
 20111116111042405.pdfP1080216.JPG 
  5974   Tue Nov 22 00:19:10 2011 kiwamuUpdateSUSc1auxey hadware rebootedI found that the slow machine c1auxey,
which controls and monitoring the ETMY suspension
  
  5982   Tue Nov 22 23:06:13 2011 kiwamuUpdateSUSMC watchdogs[Rana / Mirko / Kiwamu]
 
  
  6007   Fri Nov 25 18:45:31 2011 Den, RanaSummarySUSExcess Noise in Digital FilteringWe are now trying to understand why the
coherence between SUS-X_SUSPOS_IN1 and SUS-X_SUSPOS_OUT
is lost below 1 Hz for X = MC1, MC2, MC3,
 FiltNoise.png 
  6008   Fri Nov 25 19:45:36 2011 Mirco, DenSummarySUSExcess Noise in Digital Filtering


   
        
            
 sus_coh-crop.pdflsc_coh-crop.pdf 
  6010   Fri Nov 25 20:41:48 2011 ranaUpdateSUSMC watchdogsIt seems as if someone was looking into
this on Wednesday, but as there's no elog,
I think probably not.
  
  6014   Sat Nov 26 02:15:42 2011 MirkoUpdateSUSNot adaptive, still cool[Rana, Mirko]
I tried out the virtual pendulum
idea today. The idea is to compensate the
 PendulumQ0.1HzWithElip2comma5HzLpWfsOnCorrectedShape.pdfVirtualPendulumFilterShape.pdfSetupVirtualPendulumV2.png 
  6021   Mon Nov 28 10:54:40 2011 ranaUpdateSUSF2A filter for MCOur
approach to making the F2A or F2P filters
  
  6057   Thu Dec 1 03:27:39 2011 MirkoUpdateSUSNot adaptive, still cool


   
        
            
  
  6060   Thu Dec 1 17:33:18 2011 kiwamuUpdateSUSwatchdogs fixedThe watchdogs'
issue has been solved and they are now working
  
  6128   Sat Dec 17 01:56:16 2011 KojiSummarySUSHysteresis test[Koji Kiwamu]
We wonder if the flakiness of MC2
comes from the suspension or not.
  
  6129   Sat Dec 17 03:59:32 2011 kiwamuUpdateSUSAborted Hysteresis test

    

       
            
  
  6130   Sat Dec 17 11:53:46 2011 ZachUpdateSUSAborted Hysteresis testDo you guys have timestamps for when you
started/ended the test? I have been trying
to take some long-term RAM data but keep
  
  6131   Sat Dec 17 12:41:46 2011 KojiUpdateSUSAborted Hysteresis testThe test was from: 2011-12-17 09:48 to
11:49 (UTC).
This corresponds to the period from
  
  6132   Sun Dec 18 16:16:55 2011 kiwamuUpdateSUSAnother trial of Hysteresis testKoji has modified the script for the hysteresis
measurement.
A
  
  6134   Sun Dec 18 19:56:00 2011 kiwamuUpdateSUSAnother trial of Hysteresis testThe measurement finished at ~ 21:50
PT.

  
  6135   Sun Dec 18 23:00:22 2011 kiwamuUpdateSUSoplve recenterdI have recentered the oplev beams, including
BS, ITMs and ETMs.
  
  6136   Mon Dec 19 01:54:35 2011 kiwamuUpdateSUSanother trial of hystersis testAnother hysteresis test has begun at 1:50
PT, Dec/19.
It will finish after 3 or 4 hours.
  
  6142   Wed Dec 21 14:23:08 2011 ranaConfigurationSUSHysteresis in suspensions?While discussing the suspension hysteresis
measurements, Koji, Kiwamu, and I realized
that the suspension wire standoff is aluminum,
  
  6180   Mon Jan 9 08:47:35 2012 steveUpdateSUSETMX damping restoredETMX sus damping restored   
  6181   Mon Jan 9 13:19:09 2012 kiwamuUpdateSUSETMX damping restoredNo
we can't do that because the c1scx model
is not working properly.
  
  6188   Thu Jan 12 07:44:21 2012 steveUpdateSUSsapphire wire standoff quote
On Tue, Dec 20, 2011 at 11:37 PM,
Rana Adhikari wrote:
 standoff.PDF 
  6194   Thu Jan 12 23:19:56 2012 KojiUpdateSUSc1iscex is fine nowc1iscex
is working as before and the optic is damped.

What I checked
  
  6232   Fri Jan 27 09:05:41 2012 steveUpdateSUSOSEM locking plunger

    

       
            
  
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