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  40m Log, Page 217 of 339  Not logged in ELOG logo
ID Date Author Type Category Subject Text Attachments
  6179   Fri Jan 6 20:10:48 2012 ranaUpdateCDSframebuilder back online, using NTP time syncronization 
  
  6178   Fri Jan 6 19:17:07 2012 Max De JongUpdateGeneralMounted projectorI mounted the new projector to the pipe
where the old projector was attached. The
mounting hardware wasn't designed for attaching
  
  6177   Fri Jan 6 14:31:54 2012 JamieUpdateCDSframebuilder back online, using NTP time syncronizationThe framebuilder is back online now, minus
it's symmetricom GPS card.  The card
seems to have failed entirely, and was not
  
  6176   Fri Jan 6 11:49:13 2012 JamieUpdateCDSframebuilder taken offline to diagnose problem with symmetricom timing cardAlex and I have taken the framebuilder
offline to try to see what's wrong with the
symmetricom card.  We have removed the
  
  6175   Fri Jan 6 01:00:56 2012 kiwamuUpdateCDSc1scx out of syncBoth
the c1scx and its IOP realtime processes
became out of sync.
  
  6174   Thu Jan 5 20:40:21 2012 JamieUpdateCDSRTS upgrade aborted; restored to previous settings; fb symmetricom card failing?After running into more problems with the
upgrade, I eventually decided to abort todays
upgrade attempt, and revert back to where
  
  6173   Thu Jan 5 09:59:27 2012 JamieUpdateCDSRTS/RCG/DAQ UPGRADE TO COMMENCERTS/RCG/DAQ UPGRADE
TO COMMENCE
I will be attempting
(again) to upgrade the RTS, including the
  
  6172   Thu Jan 5 09:08:48 2012 steveUpdateGeneralframebuilder is backDataviewer is recovered after heavy new
year party.
 dataviewerisback.png 
  6171   Wed Jan 4 16:40:52 2012 JamieUpdateComputersfront-end fb communication restoredCommunication between the front end models
and the framebuilder has been restored. 
I'm not sure exactly what the issue was,
  
  6170   Wed Jan 4 16:22:30 2012 kiwamuUpdateLSCpower normalization in LSC : modification doneThe
dynamic power normalization system has been
modified such that the normalization happen
 pow_norm.png 
  6169   Wed Jan 4 11:47:08 2012 JamieSummaryComputer Scripts / Programsmedm directory clean-up


   
        
            
  
  6168   Wed Jan 4 09:06:50 2012 steveUpdateComputerspossible front-end timing issue


   
        
            
 rtntstat.png 
  6167   Wed Jan 4 05:02:58 2012 kiwamuUpdateLSCSidebands measurement at POPJust
a quick report: 
I did
 SB_DRMI.png 
  6166   Wed Jan 4 03:03:24 2012 kiwamuUpdateLSClocking activity tonight and beyondLast night and tonight, I was doing
a kind of rehabilitation -- locking PRMI
and DRMI with the new trigger system.
  
  6165   Wed Jan 4 02:43:40 2012 ranaUpdateGeneralActuators for Stewart platform

    

       
            
  
  6164   Wed Jan 4 00:43:06 2012 kiwamuUpdateIOOMC became flakyI
don't know what exactly is going on, but
MC became flaky and it's been frequently
  
  6163   Tue Jan 3 20:42:05 2012 Leo SingerUpdateGeneralActuators for Stewart platform I checked on the two single-axis
shakers that are present at the 40m that
Steve pointed out:
  
  6162   Tue Jan 3 18:40:08 2012 AidanSummaryComputer Scripts / Programsmedm directory clean-up I moved the following old and obsolete
MEDM directories to an archive /cvs/cds/rtcds/caltech/c1/medm

    c1vga
    c1vgl
  
  6161   Tue Jan 3 17:46:38 2012 Updated Stewart platform design requirementsUpdateGeneralUpdated design requirements for a Stewart platformI updated the design requirements for the
Stewart platform.  I weighed the unloaded
"dirty" SOS that was sitting on
 stewart.pdf 
  6160   Tue Jan 3 17:25:27 2012 KojiUpdatePSLFound the laser was offI found the PSL laser has been off for
four hours. Nobody seemed to know why.
I just turned it on and it is now
  
  6159   Tue Jan 3 15:49:27 2012 JamieUpdateComputerspossible front-end timing issue

    

       
            
  
  6158   Tue Jan 3 15:48:39 2012 kiwamuUpdateLSCpower normalization in LSCIt
turned out that the power normalization need
a modification.
  
  6157   Tue Jan 3 15:45:04 2012 JenneUpdateComputersFB?Is there a reason the framebuilder status
light is red for all the front ends?
Also, I reenabled PRM watchdog.
  
  6156   Fri Dec 30 22:05:16 2011 kiwamuUpdateLSCpower normalization in LSCNow a power
normalization is doable for the LSC error
 POW_NORM_MTRX.png 
  6155   Fri Dec 30 02:16:48 2011 kiwamuUpdateGreen LockingYarm ALS : high frequency noise reducedThe
high frequency noise, which has been a dominant
noise above 30 Hz in the Y arm ALS (
 Yarm_ALS_2011Dec29.png 
  6154   Wed Dec 28 14:13:16 2011 kiwamuUpdateGreen LockingALS feedback on MC2I
added an ALS feedback path on the MC2 suspension
and this path will enable us to stabilise
 MC2_ALS.png 
  6153   Tue Dec 27 23:03:56 2011 kiwamuUpdatePSLPMC realignedI have realigned the steering mirrors for
PMC because the transmitted light had been
at ~ 0.741
  
  6152   Tue Dec 27 22:17:56 2011 kiwamuUpdateLSCmultiple-LOCKIN new screensSome
new screens have been made for the new multiple-LOCKIN
system running on the LSC realtime controller.
 Untitled.png 
  6151   Tue Dec 27 16:56:15 2011 kiwamuUpdateLSCScmitt trigger installedThe old
trigger system has been replaced by Schmitt
 trigger_time_series.pngtrig_mat.pngmodel_trigger_edit.png 
  6150   Mon Dec 26 14:01:45 2011 kiwamuUpdateLSCmultiple-LOCKIN newly addedThe multiple
LOCKIN module has been newly added on the
 multiple-lockin.png 
  6149   Mon Dec 26 12:04:41 2011 kiwamuUpdateCDSc1gcy.ini hand editedI have edited c1scx.ini by hand in order
to acquire some green locking related channels.
Somehow
  
  6148   Fri Dec 23 15:55:12 2011 ranaSummaryComputer Scripts / ProgramsCONLOG: not working since Oct 1Often people say "I   
  6147   Fri Dec 23 01:07:41 2011 kiwamuUpdateGreen Lockingrearrangement of PSL green optics part IIAfter
I did a fine alignment of the X green beam
path on the PSL table, the X arm beat-note
 newLayout.png 
  6146   Thu Dec 22 20:49:33 2011 KojiUpdateIOOLimitter activated for WFS servosI set the limitters of the MC WFS servos
not to inject the feedback more than 2000.
The residual of the WFS shakes the
  
  6145   Thu Dec 22 19:15:22 2011 kiwamuUpdateGreen Lockingrearrangement of PSL green optics As
planed (#6143
  
  6144   Wed Dec 21 16:55:30 2011 kiwamuUpdateGreen LockingPower Recycled Single Arm I did some brief parameter checks
for the power-recycled single arm which I
have done yesterday.
The
  
  6143   Wed Dec 21 14:41:22 2011 kiwamuSummaryGeneralminutes of 40m meeting : short-term planHere is the Gantt chart we discussed in
the 40m meeting today.
Based on the discussions we had,
 40mproject.png 
  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,
  
  6141   Wed Dec 21 04:29:01 2011 kiwamuUpdateGreen LockingPower Recycled Single ArmI made the
first trial of locking a Power-recycled single
 time_series.png 
  6140   Wed Dec 21 03:38:14 2011 kiwamuUpdateGreen LockingY arm ALS : automation script 80 % doneScripting
of the single arm automated lock script is
80% done.
  
  6139   Tue Dec 20 15:49:21 2011 steveUpdatePEMoptical table top3/4 " thick colored acrylic material
will be used in this air tight design. Surgical
tubing for o-ring. We may have to put an
 05150901.PDF 
  6138   Mon Dec 19 23:50:23 2011 ZachUpdateRF SystemRAMmonI have been looking at the swings in the
RAMmon channels since the heater was reengaged,
to compare them to the data from beforehand
  
  6137   Mon Dec 19 17:17:02 2011 DenUpdateAdaptive Filteringfilter tap dependenceOnline filter diverges. I did offline simulations
with current c-code. Offline filter also
diverges, even in the simplest case 
 OfflineAF.png 
  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.
  
  6135   Sun Dec 18 23:00:22 2011 kiwamuUpdateSUSoplve recenterdI have recentered the oplev beams, including
BS, ITMs and ETMs.
  
  6134   Sun Dec 18 19:56:00 2011 kiwamuUpdateSUSAnother trial of Hysteresis testThe measurement finished at ~ 21:50
PT.

  
  6133   Sun Dec 18 18:45:22 2011 kiwamuUpdateGreen LockingY arm ALS : time series and noise budgetAs I said in the previous entry (#6126)
my current goals were :
 time_series.pngYarm_ALS_2011DEC17.png 
  6132   Sun Dec 18 16:16:55 2011 kiwamuUpdateSUSAnother trial of Hysteresis testKoji has modified the script for the hysteresis
measurement.
A
  
  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
  
  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
  
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