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ID Date Author Type Category Subject Text Attachments
  5897   Tue Nov 15 16:16:34 2011 steveUpdatePSLenclosure interlocks are working on all sliding doorsBen and Sam came over to fix one of 
the east side  sliding  door sensor
that had to be moved from the inside 
  
  5896   Tue Nov 15 15:56:23 2011 jamieUpdateCDSdataviewer doesn't run

    

       
            
  
  5895   Tue Nov 15 15:16:04 2011 kiwamuUpdateCDSdataviewer doesn't runDataviewer is not able to access to fb
somehow.
I restarted daqd on fb but it didn't
 blank.png 
  5894   Tue Nov 15 12:25:38 2011 kiwamuUpdateGreen LockingY arm ALS : beat-note free run fluctuationLocking activity last night :
 
The free run beat-note in 532 nm has been
 noise_budget.png 
  5893   Tue Nov 15 09:51:04 2011 ZachUpdateGreen LockingY end PDH lock : UGF at 17 kHz

    

       
            
  
  5892   Tue Nov 15 01:44:36 2011 SureshUpdateIOOMC WFS Servo: Open loop gain


   
        
            
 WFS1PIT_OL_gain.png 
  5891   Tue Nov 15 00:00:15 2011 SureshUpdateIOOMC was realigned to remove beam clipping and to accommodate PZT1 range[Kiwamu, Suresh]
The MC was realigned to readjust
the input beam direction in pitch such that
  
  5890   Mon Nov 14 22:56:31 2011 kiwamuUpdateGreen LockingY end PDH lock : UGF at 17 kHz[Tomotada / Kiwamu]
 
The open loop transfer function of the Y
 YendOLTF.png 
  5889   Mon Nov 14 21:22:48 2011 ranaConfigurationComputersprimetime RSYNC slowing down NODUSnodus:elog>w; who ; date
  9:20pm  up 44 day(s), 
5:14,  5 users,  load average:
  
  5888   Mon Nov 14 17:01:14 2011 kiwamuUpdateGreen LockingALS feedback on MC2Leaving a note on the ALS feedback before
I forget:
The
  
  5887   Mon Nov 14 15:46:14 2011 steveUpdateVACTP2's forepump changedThe foreline pressure of TP2 was 1.4 Torr
this morning. This drypump worked well for
ten months.
 drypump.png 
  5886   Mon Nov 14 12:16:41 2011 JenneUpdateComputersOAF model died for unknown reasonI am meditating on the OAF, and had it
running and calculating things.  I had
the outputs disabled so I could take reference
  
  5885   Mon Nov 14 11:32:02 2011 kiwamuSummaryGeneralGoal this weekGoal of this week : Noise
budgeting on the Y arm ALS
  
  5884   Sat Nov 12 08:09:47 2011 ranaUpdateIOOMC WFS Servo: Open loop gain Somehow, I generically don't like the idea
of lead filters for the WFS loops. We don't
really need so much bandwidth. I think you
  
  5883   Sat Nov 12 03:46:55 2011 SureshUpdateIOOMC WFS Servo: Open loop gain [Mirko, Suresh]
I closed the WFS loops and measured
the transfer function from IN2 to IN1 testpoints
 WFS1_PIT_servo_filtershape_20111111_1.pngWFS1_PIT_servo_OLG_20111111_1.pngError_signal_WFS1_PIT_20111111_1.png 
  5882   Sat Nov 12 02:46:13 2011 DenUpdateAdaptive Filteringstacks and groundWe measured the coherence between the seismometer
near the MC2 stack and accelerometers on
the vacuum tank where MC2 is. Because accelerometers
 ground_stack.jpgground_stack_coherence.jpg 
  5881   Sat Nov 12 02:44:18 2011 SureshUpdateComputersC1IOO front end suddenly froze. Was restarted remotely


   
        
            
  
  5880   Sat Nov 12 02:27:00 2011 SureshUpdateComputersC1IOO front end suddenly froze. Was restarted remotely[Koji Suresh]
No one was messing with the c1ioo
or any other machine.   The medm
  
  5879   Sat Nov 12 02:00:36 2011 MirkoUpdateAdaptive FilteringMC-F and other signalsRegarding http://nodus.ligo.caltech.edu:8080/40m/5867
and http://nodus.ligo.caltech.edu:8080/40m/5869
:
 Compare_signals_at_all_places.pngOAF-MCL-Delay-9Nov2011.pdfCompare_signals_at_all_places.figChannels_attached_to_the_PEM_ADC.pngChannels_attached_to_the_PEM_ADC.fig 
  5878   Fri Nov 11 22:07:43 2011 SureshUpdateIOOTried to recover the MC alignment of 4th Nov: partial success, PSL beam clippingI have recovered the yaw values pretty
much .  As the PZT1 rails in this direction
perhaps this is the more relevant of the
  
  5877   Fri Nov 11 21:09:30 2011 SureshUpdateSUSMC2 is being a little wild...WFS to blame


   
        
            
 LOCKMC_screen.png 
  5875   Fri Nov 11 14:55:47 2011 kiwamuSummaryLSCCharacterization of the Power Recycled Michelson : take 2

    

       
            
 rec_gain.pngrefl.pngpbu.pngMM.pngloss.png 
  5874   Fri Nov 11 13:35:19 2011 KatrinUpdateGreen LockingFeedback to ETMY[Kiwamu, Katrin]
 20111111_freq_supp.png 
  5873   Fri Nov 11 13:26:24 2011 jamieUpdateSUSMusings on SUS dewhitening, and MC ELP28's

    

       
            
  
  5872   Fri Nov 11 12:32:45 2011 KatrinUpdateGreen Lockingbeat PSL - YARM laser [Suresh, Katrin]
Measured frequency fluctuation of
the beat between PSL and YARM lasers.
 beat_psl_y.png 
  5871   Fri Nov 11 10:30:27 2011 ranaUpdateAdaptive FilteringMC_F 
 There should be a whitening
filter in the Pentek Generic DAQ board (Eurocard
  
  5870   Fri Nov 11 00:58:19 2011 DenUpdateelogrestarted elogElog suspended 2 times for 1 hour. Too
high frequency.
Restarted.
  
  5869   Fri Nov 11 00:55:53 2011 DenUpdateAdaptive FilteringMC_F[Mirko, Den]
Not satisfactory work of adaptive
filtering make us to think about the signals
 mcl_sim.jpgmcl_real.jpg 
  5868   Fri Nov 11 00:18:53 2011 ZachUpdateElectronicsPrecision temperature controllerI have made   
  5867   Thu Nov 10 22:00:38 2011 MirkoUpdateAdaptive FilteringLooking into MC_F & PSL misalignment


   
        
            
 6x 
  5866   Thu Nov 10 20:20:57 2011 SureshUpdateIOOMC Spot positions have shifted after accelerometer installation on MC2 chamber[ Jenne, Suresh ]
We were tying the fix the WFS and
noticed that the PSL --> MC alignment
  
  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
  
  5864   Thu Nov 10 16:44:54 2011 MirkoUpdateAdaptive FilteringLooking into MC_F & PSL misalignment [Den, Mirko]
While doing the things below we accidentally
misaligned the PSL laser. Thanks to Suresh
 10112011076.jpg10112011073.jpg 
  5863   Thu Nov 10 16:26:46 2011 MirkoUpdateComputersFirefox kills elogHad to restart the elog many times. For
some reason firefox 8 on Win 7 kills the
elog pretty consistently when trying to make
  
  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 
  5861   Thu Nov 10 11:52:00 2011 JenneUpdateCDSRFM signal transferringI am not so happy with the control signals
that are coming into the OAF via the RFM/Dolphin/shmem. 
The MCL/MCF signal travels via RFM
 OAF_rfm_signals_MCL.pdfOAF_rfm_signals_MICH.pdfOAF_rfm_signals_PRCL.pdfOAF_rfm_signals_GUR1X.pdf 
  5860   Thu Nov 10 05:54:23 2011 kiwamuUpdateGreen LockingBeat-note detected : PSL vs Y arm[Katrin / Kiwamu]
The beat-note
 DSC_3606_small.jpg 
  5859   Wed Nov 9 21:48:43 2011 SureshUpdateIOOWFS Servo included into the MC_AutolockerThe WFS
servo loop will come on 5 seconds after the
MC is locked. 
  
  5858   Wed Nov 9 21:32:38 2011 MirkoUpdateAdaptive FilteringPut accelerometers 4-6 on top of MC2 tankPut the accelerometers on top of MC2. Orientated
as the arms,GUR1 and STS1:
 09112011069.jpgCoherence_quiet_time.pngCoherence_quiet_time.fig 
  5857   Wed Nov 9 21:21:30 2011 SureshUpdateIOOMC WFS: Output matrix determined with loops closed.With the loops closed I ran the $SCRIPTS/MC/WFS/senseWFSoutMATRX
script and analysed the lockin outputs with
  
  5856   Wed Nov 9 20:35:58 2011 MirkoUpdateAdaptive FilteringSeismic noise injection into the MCVery elaborated measurement ;-)
On 11-11-08:
18:40 Stomp near STS1 for 2mins
 8x 
  5855   Wed Nov 9 19:08:18 2011 SureshUpdateelogrestarted elogElog was not responding and was restarted.   
  5854   Wed Nov 9 18:02:42 2011 jamieUpdateCDSISCEX front-end working again (for the moment...)The c1iscex IO chassis seems to be working
again, and the iscex front-end is running
again.
  
  5853   Wed Nov 9 17:41:17 2011 JenneUpdateComputersETMX restoredJamie did computer magic.  I burt
restored scxepics, and restored ETMX damping.
  
  5852   Wed Nov 9 16:49:17 2011 kiwamuUpdateGreen LockingY end laser temperature with slow input connectedIndeed it is strange. I took a quick look
at it.
In
  
  5851   Wed Nov 9 16:29:36 2011 KojiSummaryLSCCharacterization of the Power Recycled MichelsonDifficult to understand.
The mode matching does not change
the recycling gain. It changes the coupling
  
  5850   Wed Nov 9 16:03:21 2011 kiwamuSummaryGeneralGoal this weekGoal of this week : 
ALS on the Y arm
  
  5849   Wed Nov 9 14:49:07 2011 kiwamuSummaryLSCCharacterization of the Power Recycled MichelsonEDIT
by KI:
 contour_loss.pngcontour_MM.png 
  5848   Wed Nov 9 14:23:35 2011 JenneUpdateAdaptive FilteringOAF MC Delay MeasurementAs described in elog
2063 and the mevans
document, we need to measure the TF of
 OAF-MCL-Delay-9Nov2011.pdf 
  5847   Wed Nov 9 13:44:04 2011 MirkoUpdateComputersNDS1 missing channels in matlabThe Matlab NDS1 access seems to only work
for some channels. With other  channels it
just hangs 'Busy' and does nothing. 
  
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