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ID Date Author Type Category Subjectdown Text Attachments
  7814   Wed Dec 12 11:49:05 2012 AyakaUpdateLSCAcoustic noise in POX and AS error signal[Koji, Ayaka]
Last night, I injected acoustic noise
at POX table and AS table with oplev controls
 POX_noise4.pdfAScontXARM_acoustic.pdf 
  7707   Tue Nov 13 21:05:22 2012 AyakaUpdateWienerFilteringAcoustic noise cancellation with MC In order to perform acoustic noise
cancellation with MCL signal, I am trying
to find sweet spots for microphones.
 9x 
  12442   Thu Aug 25 19:03:56 2016 PrafulUpdateElectronicsAcoustic Tab and Amp SuspensionMy box has been suspended in the PSL using
surgical tubing, and it has been connected
to C1:PEM-MIC_1 (C17) with a BNC. I made
  
  12460   Thu Sep 1 15:28:01 2016 ranaUpdateElectronicsAcoustic Tab and Amp Suspension
add photo of installation
no
more secret personal pages! put channels
into the actual pages that we look at
make
  
  12463   Thu Sep 1 17:25:02 2016 PrafulUpdateElectronicsAcoustic Tab and Amp SuspensionI'll add a picture of the installation
when I get back to campus and finish hooking
up the power cable. I haven't added this
  
  12614   Mon Nov 14 19:15:57 2016 JohannesUpdateGeneralAchievable armloss measurement accuracyLooking back at elog
12528, the uncertainty in the armloss
number from the individual quantities in
  
  12618   Tue Nov 15 20:35:19 2016 JohannesUpdateGeneralAchievable armloss measurement accuracyI had a mistake in my script that reported
the wrong error after averaging several datapoints,
and because I hadn't looked at the individual
  
  12624   Thu Nov 17 21:54:11 2016 JohannesUpdateGeneralAchievable armloss measurement accuracyI don't like AS110 or AS55.
Neither of them are designed for DC and so
the DC readout chain is hokey. How
  
  8580   Wed May 15 17:17:05 2013 JamieSummaryCDSAccounting of ADC/DAC channel availabilityWe need ADC and DAC channels for a couple
of things:

    POP QPD: 3x ADC
  
  8583   Wed May 15 19:32:04 2013 ranaSummaryCDSAccounting of ADC/DAC channel availability
    
  
  8585   Wed May 15 22:47:11 2013 JamieSummaryCDSAccounting of ADC/DAC channel availability

    

       
            
  
  9429   Wed Nov 27 16:29:21 2013 JenneUpdateCDSAccidentally turned off SUS IO chassis[Jenne, Koji]
I was trying to lock the Yarm, and
saw that I was not getting signals to go
  
  830   Tue Aug 12 21:38:19 2008 JohnUpdateLSCAccidental higher order mode resonances in the armsRecently we had been having some trouble locking
the full IFO in the [COLOR=green][I][FONT=Verdana]spring[/FONT][/I][/COLOR]
configuration (SRC on [COLOR=blue]+166[/COLOR]).
 HOMresonances.pngHOMarms2.m 
  5289   Tue Aug 23 16:23:33 2011 JenneUpdateVACAccess connector in place[Steve, Bob, Jamie, Kiwamu, Valera, Jenne]
The access connector is now in place,
in preparation for pump-down.  Tomorrow
  
  1692   Tue Jun 23 23:14:36 2009 ClaraConfigurationPEMAccelerometers relocatedBoth accelerometers have been moved in
an attempt to optimize their positions. The
MC1 accelerometer was moved from one green
  
  2078   Fri Oct 9 17:41:04 2009 JenneUpdatePEMAccelerometers relocated[Sanjit, Jenne]
The set of 6 accelerometers which
were semi-randomly placed underneath the
  
  2079   Sun Oct 11 04:12:44 2009 ranaUpdatePEMAccelerometers relocatedSome of these channels are not like the
others.
 Untitled.png 
  11389   Wed Jul 1 16:16:46 2015 IgnacioUpdateGeneralAccelerometers reinstalled for future huddle testToday, I installed the Wilcoxon accelerometers
in the table near the end of the mode cleaner.
I only set three of them up instead of all
 9x 
  11359   Mon Jun 15 16:55:39 2015 ericqUpdatePEMAccelerometers installedThe accelerometers have been installed
at MC1 and MC2. MC2 data is live, I haven't
yet run the cables from the MC1 set to the
 MC2.jpgMC1.jpgmc2accspectra.png 
  11362   Wed Jun 17 15:31:50 2015 ericqUpdatePEMAccelerometers fully installedMC1 accelerometer has been plugged in.
The modecleaner locking has been intermittent
today, but I looked at a 15 minute lock in
 IMCcoherence_Jun172015.xml.zipIMCcoherence.png 
  172   Wed Dec 5 23:19:03 2007 AndreyConfigurationPEMAccelerometers are turned on
All accelerometers have been turned on, as
Alan asked during Wednesday meeting.
 7x 
  151   Fri Nov 30 20:17:26 2007 AndreyConfigurationPEMAccelerometers and alum.plates for themAll 6 accelerometers which were located near
the ITMX are turned off and disconnected
from the power cords.
 Scheme_Aluminum_Piece-inches.pdf 
  853   Tue Aug 19 14:25:38 2008 SharonUpdatePEMAccelerometer's calibration - update[COLOR=blue][B]Goal[/B][/COLOR] - Make sure
the accelerometers are calibrated among themselves
(have the same power spectrum when they are
 acccalibafter.pngacccalibbefore.png 
  882   Mon Aug 25 17:45:34 2008 rana, josephb, robHowToPEMAccelerometer rangeJoe shows us by jumping up ~15" in the control
rom that the accelerometers are set with
not enough gain.
 Screenshot-4.png 
  7262   Thu Aug 23 21:53:18 2012 YaakovUpdatePEMAccelerometer locationThe MC1 accelerometer cube (3 accelerometers
arranged in x,y,z) is under the PSL table,
as I found it at the beginning of the summer.
  
  3355   Wed Aug 4 01:44:56 2010 KojiConfigurationPEMAccelerometer located on and below the PSL table[Jenne and Koji] 
In order to characterize the seismic vibration
 IMG_2675.jpgIMG_2678.jpgIMG_2682.jpg 
  3395   Tue Aug 10 22:40:55 2010 KojiSummaryPEMAccelerometer located on and below the PSL tableResult
of the accelerometer measurement
Introduction

We wanted to characterize
 PEM_100809.pdf 
  930   Thu Sep 4 18:02:34 2008 rana, josephbConfigurationPEMAccelerometer gains increased by 10[COLOR=chocolate][SIZE=3]We increased the
Accelerometer gains by 10 by modifying the
C1ADCU_PEM.ini file.[/SIZE][/COLOR]
 acc.png 
  673   Tue Jul 15 11:47:56 2008 JenneDAQPEMAccelerometer channels in ASS Adapt MEDM screenJenne, Sharon

We have traced which accelerometers correspond
  
  368   Tue Mar 11 23:14:01 2008 ranaConfigurationPEMAccelerometer and Seismometer movementsSteve and Matt moved the accelerometers and
seismometers today. 
The accelerometers are now placed around
 Acc.pdf 
  369   Wed Mar 12 00:36:52 2008 ranaConfigurationPEMAccelerometer and Seismometer movementsI used the MISO FIR Wiener matlab code to
see how well we might do in principle.
 finished.pdf 
  370   Wed Mar 12 00:40:35 2008 ranaConfigurationPEMAccelerometer and Seismometer movementsSame as above but with 2048 taps and a 128
Hz sample rate. Does much better at the 16
Hz bounce mode.
 mc2048-128.pdf 
  371   Wed Mar 12 00:47:26 2008 ranaConfigurationPEMAccelerometer and Seismometer movementsAnd this is a [COLOR=blue]cool snapshot[/COLOR]
showing how this operation used [B][COLOR=red]16
cores[/COLOR][/B] on [SIZE=5][B][COLOR=purple]menkar
 Screenshot.png 
  283   Mon Jan 28 19:35:55 2008 ranaSummaryPEMAccelerometer and Seismometer Coherences[FONT=Arial][COLOR=purple]The attached PDF
shows that there is some strange behavior
at low frequencies.[/COLOR][/FONT]
 Acc.pdf 
  330   Fri Feb 22 02:51:20 2008 AndreyUpdatePEMAccelerometer ITMX seems to be broken
As people probably know,
 Accelerom-EYMX-Feb22.jpgAccelerom-ITMX-Feb22.jpg 
  2859   Wed Apr 28 16:15:02 2010 KevinUpdatePSLAccelerometer CalibrationKoji, Steve, and Kevin looked into calibrating
the Wilcoxon accelerometers. Once calibrated,
the accelerometers will be used to monitor
  
  11460   Wed Jul 29 17:51:56 2015 IgnacioUpdatePEMAccelerators moved back to MC1 and MC2We are done taking accelerator huddle test
data. So I moved back all six accelerometers
and cables to MC1 and MC2. I also relabel
 FullSizeRender.jpgFullSizeRender_2.jpg 
  2889   Thu May 6 18:25:20 2010 JenneUpdatePEMAcc power supply turned onThe accelerometer power supply / preamp
board has been OFF because of exciting new
accelerometer measurements.  It's now
  
  5100   Wed Aug 3 01:30:04 2011 JenneUpdateLSCAbsolute length of Xarm and Yarm measuredSo far, this is just preliminary, because   
  1115   Wed Nov 5 12:41:36 2008 AlbertoUpdateLSCAbsolute Length and g-factor measurements conclusions[SIZE=4][B][COLOR=green]Absolute Length and
g-Factor Measurement for the 40m Arm Cavities,
Summary of Results[/COLOR][/B][/SIZE]
 2008-11-04_file_02-05.pngHOM_resonances_Xarm.pngHOM_resonances_Yarm.png 
  2053   Mon Oct 5 14:37:29 2009 AlbertoUpdateABSLAbsolute Length Meaasurement NPRO is onIn the revival of the experiement length
measurement for the recycling cavities, I
turned the auxiliary NPRO back on. The shutter
  
  2422   Wed Dec 16 11:46:25 2009 AlbertoUpdateABSLAbsl PLL Open Loop GainYesterday I measured the Open Loop Gain
of the PLL in the absolute length experiment.
The servo I used was that of the old Universal
 OldBoxOLTF.png 
  2337   Wed Nov 25 20:14:58 2009 AlbertoUpdateABSLAbsL PLL not able to lock: problem fixed

    
        
  
  2328   Wed Nov 25 10:20:47 2009 AlbertoUpdateABSLAbsL PLL not able to lockLast night something happened on the
beat between the PSL beam and the auxiliary
NPRO beam, that spoiled the quality of the
  
  2329   Wed Nov 25 11:02:54 2009 AlbertoUpdateABSLAbsL PLL not able to lock

    
        
  
  838   Thu Aug 14 21:52:51 2008 KojiSummaryGeneralAbs. Len. Meas. ~ summary of my SummerI have made the summary of the absolute length
measurement.
It is attached here. The file is a bit big
 mode_spacing_measurement_080816_v2.pdf 
  802   Wed Aug 6 11:43:52 2008 KojiUpdateGeneralAbs. Len. Meas. ~ analysis of the TEM01 scan[B]Analysis of the data on August 3th ~ Part
2[/B]
 TEM01fit.png 
  801   Wed Aug 6 11:10:34 2008 KojiUpdateGeneralAbs. Len. Meas. ~ analysis of the TEM00 scan[B]Analysis of the data on August 3th ~ Part
1[/B]
 TEM00fit.pngTEM00FSRfit.png 
  794   Mon Aug 4 22:31:10 2008 KojiUpdateGeneralAbs. Len. Meas. ~ Simple Test for TEM01/10 split[B]Work log on August 3rd - Part3[/B]

[B]Question:[/B]
 TEM01_10.png 
  793   Mon Aug 4 21:48:24 2008 KojiUpdateGeneralAbs. Len. Meas. ~ Scan for TEM00/01/10[B]Work log on August 3rd  - Part2[/B]

o I tried to measure the frequency of the
 TEM00.pngTEM01.pngknife_edge.png 
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