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IDup Date Author Type Category Subject Text Attachments
  1465   Thu Apr 9 23:11:27 2009 robSummaryLockingLaser PM to PO-DC transfer functions at multiple CARM offsetsI've plotted some transfer functions showing
the response at POB DC to laser frequency
(phase) noise.  There are transfer functions
 CARMoffs1.pngCARMoffs2.pngCARMcarpet.png 
  1466   Thu Apr 9 23:20:35 2009 robSummaryLockingLaser PM to REFL-DC transfer functions at multiple CARM offsets


   
        
            
 CARMoffs1_r.pngCARMoffs2_r.pngCARMcarpet_r.png 
  1467   Fri Apr 10 01:24:08 2009 ranaUpdateComputersallegra update (sort of)I
tried to play an .avi file on allegra. In
a normal universe this would be easy, but
  
  1468   Fri Apr 10 03:10:08 2009 ranaSummaryLockingLaser PM to REFL-DC transfer functions at multiple CARM offsetsI hereby award the previous rainbow transfer
functions the plot innovation of the month
award for its use of optical frequency to
  
  1469   Fri Apr 10 04:54:24 2009 YoichiUpdateLockingREFL_DC for CARMSuggested by Rob and Rana's simulation works,
I tried to use REFL_DC for the CARM error
signal.
 AO-loop-gain-CARM-REFL_DC.png 
  1470   Fri Apr 10 18:11:18 2009 JenneUpdatePSLISS has a bad cable?[Rob, Jenne]
I noticed that the ISS Mean Value
and CS Saturation were both 
  
  1471   Fri Apr 10 19:09:48 2009 JenneUpdatePSLPMC LO CalibrationI measured the RF LO output level from the
PMC's LO board which goes directly into the
LO input on the PMC Servo board.  This goes
 RFSliderAdjustCalib.pngRFSliderAdjustCalibWithOsc.png 
  1472   Fri Apr 10 19:10:53 2009 JenneUpdateGeneralXarm locked?I don't know who left the X arm locked,
but I just ran the Align Full IFO script,
so everything is good in case Yoichi/someone
  
  1473   Sat Apr 11 00:45:41 2009 YoichiUpdatePSLPMC LO Calibration[quote]
I then changed the RF Output Adjust slider
in increments of 0.5, and measured the peak-to-peak
  
  1474   Sun Apr 12 01:19:30 2009 YoichiConfigurationComputersNew FE codes for suspensions not successfulAlex recompiled the suspension FE codes for
c1susvme1 and c1susvme2 to fix the denormalization
problem.
  
  1475   Sun Apr 12 19:27:20 2009 ranaUpdatePSLPMC LO Calibration[quote]
3.8Vpp is about 16dBm. 
The mixer for the PMC demodulator is level
  
  1476   Sun Apr 12 19:31:43 2009 ranaSummaryElectronicsAmphony 2500 HeadphonesWe bought the Amphony 2500 Digital Wireless
headphones recently. The other cheapo headphones
we have are OK for control room use, but
  
  1477   Mon Apr 13 08:59:57 2009 steveUpdatePSLmixers on order[quote][quote]
I then changed the RF Output Adjust slider
in increments of 0.5, and measured the peak-to-peak
  
  1478   Mon Apr 13 17:55:37 2009 JenneUpdatePSLPMC LO Mon CalibrationI have calibrated the PMC LO Mon (C1:PSL-PMC_LODET)
on the PMC's EPICS screen, by inputting different
RF LO levels into the LO input of the PMC
 LOmonCalibration.png 
  1479   Mon Apr 13 18:57:03 2009 AlbertoFrogsComputersGPIB/ETH Interface TroublesI really don't understand why my programs
that I used to use to get data from the HP
Spectrum Analyzer and the Marconi frequency
 sweepfrequencyPRC.pyHP8590PRC.py 
  1480   Tue Apr 14 02:59:02 2009 YoichiUpdateLockingPower up until 26Yoichi, Peter,

With careful adjustments of the common mode
  
  1481   Tue Apr 14 12:10:11 2009 AlbertoFrogsComputersGPIB/ETH Interface Troubles


   
        
            
  
  1482   Tue Apr 14 17:20:36 2009 YoichiUpdateComputer Scripts / ProgramsParallel OptickleI wrote a parallel version of tickle() function
for Optickle.
The attached ptickle.m, which provides ptickle()
 ptickle.m 
  1483   Wed Apr 15 02:18:42 2009 ranaConfigurationComputersnodus vfstab changed for rigelnodus was hanging because it was trying
to mount the 
  
  1484   Wed Apr 15 02:20:46 2009 rana, yoichiUpdateDMFDMF now working copyWe found that DMF/ was not an SVN working
copy, so I wiped out the SVN version, imported
the on-disk copy, moved it to DMFold/ and
  
  1485   Wed Apr 15 03:52:27 2009 ranaUpdateDMFNDS client32 updated for DMF Since   
  1486   Wed Apr 15 11:25:21 2009 steveConfigurationVAC RGA cal completed

    
        
 rga-090415-bg-d7-cald2.png 
  1487   Wed Apr 15 17:11:37 2009 JenneUpdatePSLEdited c1psl.db to calibrate PMC's LO mon


Following the method in Peter's
Elog, 

I edited c1psl.db to include
the following: 


grecord(calc, "C1:PSL-PMC_LOCALC")
{
  
  1488   Thu Apr 16 11:17:56 2009 JenneUpdatePSLEdited c1psl.db to calibrate PMC's LO mon


   
        
            
  
  1489   Thu Apr 16 16:26:57 2009 peteUpdateLockingWed. night lockingyoichi, pete

We installed the watchLockLoss script in
  
  1490   Thu Apr 16 16:37:42 2009 AlbertoUpdateAuxiliary lockingthe zipper It takes 18 months to double the computational
power of microprocessors but it took man
thousands of years to invent the zipper.
 19_3f_Current_40m_plots_SUCCESS.pdf 
  1491   Thu Apr 16 17:19:44 2009 AlbertoUpdateAuxiliary lockingthe zipper


   
        
            
 04_3f_Current_40m_plots.pdf11_3f_40mUpgrade_plots.pdf 
  1492   Thu Apr 16 17:48:00 2009 YoichiConfigurationComputer Scripts / ProgramsAutoDTTAs Peter mentioned in his entry on the last
night's locking, I imported AutoDTT from
Hanford.
  
  1493   Fri Apr 17 11:05:22 2009 YoichiUpdateLockingThursday night locking statusThe last night, it was sort of robust to go
up until arm power = 26.
The REFL_DC gain seems to change a lot around
  
  1494   Fri Apr 17 11:37:32 2009 YoichiConfigurationComputer Scripts / ProgramsAutoDTTIn order to get test point data with AutoDTT,
you have to pre-trigger test points you want
to use.
  
  1495   Sun Apr 19 03:34:05 2009 YoichiUpdateLockingSaturday night lockTonight I was able to go up to arm power =
33, by mainly tweaking the DARM gain. A small
progress.
  
  1496   Sun Apr 19 11:34:33 2009 josephbHowToCamerasUSB Frame Grabber - How toTo use the Sensoray 2250 USB frame grabber:
Ensure you have the following packages
installed: build-essential, libusb-dev
  
  1497   Sun Apr 19 11:51:05 2009 josephbUpdateCamerasMafalda may need an updateI tried installing libusb-dev on mafalda
in order to try getting the usb frame grabber
to work on it, but could not as it could
  
  1498   Mon Apr 20 05:18:42 2009 YoichiConfigurationLockingFM6 and FM10 of LSC-MC were restoredDuring tonight's locking work, I realized
that FM6 and FM10 (both resonant gains around
20Hz) were actually activated by cm_step.
  
  1499   Mon Apr 20 11:57:27 2009 robUpdateCamerasMafalda may need an update


   
        
            
  
  1500   Mon Apr 20 18:17:44 2009 robSummaryLockingCARM offset/Power rubricPlotted assuming the average arm power
goes up to ~80.  No DARM offset.
 ARMpowersCARM.png 
  1501   Mon Apr 20 18:36:37 2009 ranaUpdateCamerasMafalda may need an updateSadly, the sensoray crap doesn't seem to build
on CentOS. I too would prefer a homogenous
solution, 
  
  1502   Mon Apr 20 19:51:51 2009 JenneConfigurationPSLPMC has new Level 13 Mixer installedThe new Level 13 mixer on the PMC servo
board is installed (minicircuits SRA-3MH).  
Since the RF output of the LO board was ~16dBm,
 PMColg20Apr2009.png 
  1503   Mon Apr 20 20:00:44 2009 ranaConfigurationIOOMcWFS gains re-allocatedSince it looks like the night time people
have been running with a WFS gain of 0.05
and I like the slider
  
  1504   Mon Apr 20 20:45:25 2009 ranaConfigurationGeneralSVN: project area addedI added the [B]/cvs/cds/project/[/B] directory
to the SVN. I've noticed that we've been
using target/ for code which is not
  
  1505   Mon Apr 20 23:27:59 2009 ranaSummaryVACc1vac2 rebooted: non-functional for several monthsWe found several problems with the framebuilder
tonight. The first symptom was that it was
totally out of
  
  1506   Tue Apr 21 18:18:27 2009 steveUpdateVACmaglev failedOur Osaka TG360MB maglev failed with CSB
error message. This means that the dry emergency
landing bearing has to be replaced.
 nopumping10h.jpg 
  1507   Wed Apr 22 11:16:26 2009 steveConfigurationVACCryo pump is ON and the Maglev is deadThe
CRYO pump cooled down and VC1 was opened.
This
 cryoOn.jpg 
  1508   Thu Apr 23 13:55:43 2009 josephb, peterUpdateComputersRCG example We successfully compiled and installed
the Real time Code Generator "Hello
World" example (which is a skeleton
  
  1509   Thu Apr 23 16:27:24 2009 YoichiUpdateLockingLocking with the cryo-pumpThe last night, the IFO was unstabler than
usual and the locking script often failed
before reaching the power up stage.
  
  1510   Thu Apr 23 16:35:23 2009 YoichiSummaryComputer Scripts / ProgramsrestoreWatchdog scriptWhen the IFO loses lock during the lock acquisition
steps, it often kicks the MC2 (through the
CM servo) and trips the watchdog.
  
  1511   Thu Apr 23 16:38:33 2009 steveUpdateVACvac valve relay box is shortingBen and I found this vacuum valve relay
box intermittently shorthing yesterday.
It effects V4, V5, VA6 and VM1........
 vacrel.png 
  1512   Thu Apr 23 18:09:11 2009 YoichiUpdateEnvironmentEffect of cryopumpThe attached is the trend plot of the MC1
accelerometer for 3 days.
It is evident that the seismic level increased
 SeisTrend.pdf 
  1513   Thu Apr 23 21:13:37 2009 YoichiSummaryEnvironmentMag. 4 earthquake in LA tripped the watchdogs of the most optics So far, no damage is noticeable.
restoreWatchdog script was useful :-)
  
  1514   Fri Apr 24 03:57:30 2009 YoichiUpdateLockingDARM demod phaseTonight, I was able to go up to arm power
= 40 by tweaking the DARM demodulation phase.
I think the DARM loop became unstable because
  
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