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  40m Log, Page 265 of 344  Not logged in ELOG logo
ID Datedown Author Type Category Subject Text Attachments
  3992   Tue Nov 30 04:22:52 2010 kiwamuUpdateIOOswaped in-vac PZT mirrors As a result
of the vacuum work, now the IR beam is hitting
  
  3991   Mon Nov 29 22:50:07 2010 SureshUpdateSUSETMU05 Side Magnets glued back [Suresh, Jenne]
ETMU05
: Gluing Side magnets back on to the optic.
  
  3990   Mon Nov 29 18:05:17 2010 Leo SingerConfigurationComputersinstalled graphviz on RosalbaI installed the following packages on Graphviz
in order to support visualization of GStreamer
pipeline graphs:
  
  3989   Mon Nov 29 17:45:28 2010 ZachUpdateelogrestarted elog The elog was down so I restarted
it. The instructions on the wiki do not work
as the process has some complicated name
  
  3988   Mon Nov 29 11:51:41 2010 kiwamuUpdateIOOswaped in-vac PZT mirrors This morning
I opened the chambers and started some in-vac
  
  3987   Fri Nov 26 16:37:29 2010 kiwamuUpdatePhotospictures on PIcasa I uploaded some pictures taken in
the last and this week. They are on the Picasa
web albums.
 DSC_2657_ss.jpg 
  3986   Thu Nov 25 02:49:39 2010 kiwamuUpdateCDSinstallation of C1LSC: still going on [Joe, Kiwamu]
 We tried installing C1LSC but it's not
 DSC_2723_ss.jpgDSC_2724_ss.jpgDSC_2727_ss.jpg 
  3985   Wed Nov 24 18:11:26 2010 JenneUpdatePEMSome progress on getting PEM channelsI have made a little bit of progress on
the PEM channels.  I have begun writing
up detailed instructions in the
  
  3984   Wed Nov 24 17:57:24 2010 JenneUpdateSUSETMU07: Baking. ETMU05: Needs side magnets reglued[Jenne, Koji]
We removed ETMU07 from the suspension
tower, after confirming that the balance
 StatusTable.png 
  3983   Tue Nov 23 23:52:49 2010 ranaUpdateCDSUpdated appsWow. I typed DTT on rossa and it
actually worked! No complaints about testpoints,
etc. I was also able to use its new 'NDS2'
  
  3982   Tue Nov 23 23:13:40 2010 kiwamuSummaryCDSplan: we will install C1LSC [Joe, Suresh, Kiwamu]
 We
  
  3981   Tue Nov 23 22:45:59 2010 kiwamuUpdateComputersAltiumI installed
and activated Altium, a PCB design software,
  
  3980   Tue Nov 23 22:01:49 2010 kiwamuUpdateIOOimmigration plan for in-vac PZT mirrors  [Suresh, Kiwamu]

 Untitled.png 
  3979   Tue Nov 23 18:08:28 2010 JenneUpdateSUSETMU07: Balanced, standoff glued. ETMU05: Magnets glued to optic[Koji, Jenne]
ETMU07 had its wire winched to the
correct height, was balanced, standoff glued. 
 StatusTable.png 
  3978   Tue Nov 23 16:55:14 2010 josephbUpdateCDSUpdated appsUpdated
Apps:
I created a new setup script for
  
  3977   Tue Nov 23 14:52:28 2010 JenneUpdatePEMPEM Model StartedJoe showed me what was what with adding
DAQ channels, and I have begun building a simulink
  
  3976   Tue Nov 23 11:32:03 2010 JoonhoSummaryElectronicsRF distribution unit.The last time(Friday) I made an arrangement
for RF distribution unit.
I am making RF distribution unit
 Frequency_Distribution_Unit_Arrangement.jpg 
  3975   Tue Nov 23 11:20:30 2010 josephbUpdateCDSCleaning up old target directoryWinter Cleaning:
I cleaned up the /cvs/cds/caltech/target/
directory of all the random models we had
  
  3974   Tue Nov 23 10:53:20 2010 josephbUpdateCDStiming issuesProblem:
Front ends seem
to be experiencing a timing issue. 
  
  3973   Tue Nov 23 10:48:31 2010 KojiUpdateIOOthe plan of the day[Kiwamu/Koji]
- The tanks are open
Plan
  
  3972   Tue Nov 23 01:45:47 2010 kiwamuUpdateGreen Lockingnoise curve of wideband RFPD

    

       
            
 noise_RFPD.png 
  3971   Tue Nov 23 01:27:33 2010 KevinUpdateElectronicsPOX CharacterizationsI measured the RF transimpedance of the
POX photodiode by measuring the optical transfer
function with the AM laser and by measuring
  
  3970   Mon Nov 22 20:31:58 2010 kiwamuUpdateGreen Lockingsearching for unknown loss in green PD path As I said in the past entry (see
this entry), there was unknown loss of
about 20dB in the beat detection path.
 RFPDresponse.png 
  3969   Mon Nov 22 20:01:56 2010 kiwamuConfigurationComputersGPIB box : took it out from HP3563A and connect it to AG4395A I disconnected the yellow GPIB box
from the backside of 
  
  3966   Mon Nov 22 18:39:53 2010 JenneUpdateSUSETMU07: magnets glued to optic. ETMU05: magnets removed[Suresh, Jenne]
A
 StatusTable.png 
  3965   Mon Nov 22 17:48:11 2010 josephbUpdateCDSc1iscex is not seeing its Binary Output cardProblem:
c1iscex does not even see its 32
channel Binary output card.  This means
  
  3964   Mon Nov 22 16:16:04 2010 josephbUpdateCDSDid an SVN update on the CDS codeProblem:
The CDS oscillator part doesn't
work inside subsystems.
  
  3963   Mon Nov 22 13:16:52 2010 josephbSummaryCDSCDS Plan for the weekCDS Objectives for the Week:
Monday/Tuesday:
1) Investigate ETMX SD sensor problems
2) Fully check out the ETMX suspension
  
  3962   Mon Nov 22 12:00:18 2010 josephbUpdateCDSUpdated Computer Restart Procedures for FBI've updated the  Computer
Restart Procedures  page in the
wiki with the latest fb restart procedure.
  
  3961   Sat Nov 20 03:37:11 2010 yutaSummaryCDSCDS time delay measurement - the ripple(Koji, Joe, Yuta)

Motivation:
 c1tst16Kdelay.png 
  3960   Sat Nov 20 02:25:30 2010 yutaUpdateCDS2 LOCKINs for suspension models(Suresh, Koji, Yuta)

Background:
 LockinRoll.png 
  3959   Sat Nov 20 01:58:56 2010 yutaHowToCDSeditting RT models and MEDM screens(Suresh, Yuta)

If you come up with a good idea and
  
  3958   Fri Nov 19 18:20:59 2010 SureshUpdateSUSGlue dynamics!I examined
the magnet-dumbbell joints under the microscope
to see whether the glue that I applied yesterday
 Too_much_glue_1.jpgToo_much_glue_2.jpgToo_much_glue_2.jpgToo_much_glue_3.jpg 
  3957   Fri Nov 19 17:12:22 2010 yutaUpdateCDSETMX damped, but with weird TO_COIL matrixBackground:
  c1iscex machine is currently
being setup and RT model c1scx is running.
 ETMXdamping.png 
  3956   Fri Nov 19 16:13:09 2010 JenneUpdateSUSETMU05: magnets glued to optic[Jenne, Suresh]
Suresh
and I glued the intact-from-the-first-round
 StatusTable.png 
  3955   Fri Nov 19 15:51:50 2010 KojiUpdateElectronicsREFL55 CharacterizationsRF Transimpedance of 200Ohm means the residual
impedance at the resonance (R_res) of 40,
  
  3954   Fri Nov 19 12:53:50 2010 josephbUpdateCDSTestpoints on c1iscex now workingProblem:
c1iscex did not have test points
working last night.
  
  3953   Fri Nov 19 04:23:12 2010 SureshUpdateSUSCleaned and stuck magnets to dumbbellsTo clean
the glue off the magnets and dumbbells I soaked them
 7x 
  3952   Fri Nov 19 03:43:33 2010 KevinUpdateElectronicsREFL55 Characterizations[Koji, Rana, and Kevin]
I have been trying to measure the
shot noise of REFL55 by shining a light bulb
  
  3951   Thu Nov 18 23:45:18 2010 ranaConfigurationPSLPMC Refl CamValera
and Haixing and I installed a PMC REFL camera
 mc2_simulink.png 
  3950   Thu Nov 18 17:42:20 2010 Joonho LeeSummaryElectronicsCCD cables.I finished
the direct measurement of cable impedances.
Moreover,
 Upgrade_plan_(Nov18).pdf 
  3949   Thu Nov 18 16:42:29 2010 Joonho LeeConfigurationElectronicsQuad Video for PMCT, RCT, RCR fixed.The far
right monitor in the control room is now
displaying IMCR, PMCT, RCR, RCT.
  
  3948   Thu Nov 18 16:32:21 2010 yutaSummaryCDScurrent damping status for all optics c1sus handlesSummary:
   I set Q-values for each
ringdown of PRM, BS, ITMX, ITMY, MC1, MC2,
 c1susdampings.png 
  3947   Thu Nov 18 14:19:01 2010 josephbUpdateCDSSwapped c1auxex and c1auxey codesProblem:
We had not switched
the c1aux crates when we renamed the arms,
  
  3946   Thu Nov 18 14:05:06 2010 josephb, yutaUpdateCDSc1sus is alive!Problem:
We broke c1sus by moving ADC cards
around.
  
  3945   Thu Nov 18 11:06:20 2010 josephbUpdateCDSc1sus and ADCsProblem:
ADCs are timing out on c1sus when
we have more than 3.
  
  3944   Thu Nov 18 01:52:58 2010 KevinUpdateElectronicsREFL55 Transfer FunctionsI measured the optical and electrical transfer
functions for REFL55 and calculated the RF
transimpedance. To measure the optical transfer
  
  3943   Thu Nov 18 00:40:31 2010 yutaUpdateIOOPRM reflected beam reached AP table(Kiwamu, Yuta)

Summary:
  
  3942   Wed Nov 17 23:45:20 2010 JenneUpdateSUSA bad day for suspensions[Jenne, Suresh]
Today has been a downright miserable
day in the world of suspension work. Thumbs
 StatusTable.png 
  3941   Wed Nov 17 20:44:59 2010 yutaSummaryCDSno QPD channels on c1sus machine today(Joe, Suresh, Yuta)

  
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