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  40m Log, Page 124 of 339  Not logged in ELOG logo
ID Date Author Typeup Category Subject Text Attachments
  3954   Fri Nov 19 12:53:50 2010 josephbUpdateCDSTestpoints on c1iscex now workingProblem:
c1iscex did not have test points
working last night.
  
  3955   Fri Nov 19 15:51:50 2010 KojiUpdateElectronicsREFL55 CharacterizationsRF Transimpedance of 200Ohm means the residual
impedance at the resonance (R_res) of 40,
  
  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 
  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 
  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 
  3960   Sat Nov 20 02:25:30 2010 yutaUpdateCDS2 LOCKINs for suspension models(Suresh, Koji, Yuta)

Background:
 LockinRoll.png 
  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.
  
  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.
  
  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
  
  3966   Mon Nov 22 18:39:53 2010 JenneUpdateSUSETMU07: magnets glued to optic. ETMU05: magnets removed[Suresh, Jenne]
A
 StatusTable.png 
  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 
  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
  
  3972   Tue Nov 23 01:45:47 2010 kiwamuUpdateGreen Lockingnoise curve of wideband RFPD

    

       
            
 noise_RFPD.png 
  3973   Tue Nov 23 10:48:31 2010 KojiUpdateIOOthe plan of the day[Kiwamu/Koji]
- The tanks are open
Plan
  
  3974   Tue Nov 23 10:53:20 2010 josephbUpdateCDStiming issuesProblem:
Front ends seem
to be experiencing a timing issue. 
  
  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
  
  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
  
  3978   Tue Nov 23 16:55:14 2010 josephbUpdateCDSUpdated appsUpdated
Apps:
I created a new setup script for
  
  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 
  3980   Tue Nov 23 22:01:49 2010 kiwamuUpdateIOOimmigration plan for in-vac PZT mirrors  [Suresh, Kiwamu]

 Untitled.png 
  3981   Tue Nov 23 22:45:59 2010 kiwamuUpdateComputersAltiumI installed
and activated Altium, a PCB design software,
  
  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'
  
  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 
  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
  
  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 
  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 
  3988   Mon Nov 29 11:51:41 2010 kiwamuUpdateIOOswaped in-vac PZT mirrors This morning
I opened the chambers and started some in-vac
  
  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
  
  3991   Mon Nov 29 22:50:07 2010 SureshUpdateSUSETMU05 Side Magnets glued back [Suresh, Jenne]
ETMU05
: Gluing Side magnets back on to the optic.
  
  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
  
  3993   Tue Nov 30 11:44:36 2010 ZachUpdateelogelog restarted -- SCRIPT adapted for 2.8.0 I have created an updated version
of the "start-elog-nodus"
script and put it in .../elog/elog-2.8.0.
  
  3994   Tue Nov 30 12:10:44 2010 josephbUpdateelogElog restarted againThe elog
seemed to be down at around 12:05pm. 
I waited a few minutes to see if the browser
  
  3995   Tue Nov 30 12:25:08 2010 josephbUpdateCDSLSC computer to chassis cable deadProblem:
We
seemed to have a broken fiber link for use
  
  3997   Tue Nov 30 12:45:36 2010 kiwamuUpdateSUSfound a loose connection : ITMX damping Last
night I found that the response of ITMX against
the angle offsets were strage.
  
  3998   Tue Nov 30 14:21:21 2010 ZachUpdateelogScript unnecessaryI didn't realize that the script in .../elog
was configured to start 2.8.0 already. I
will revert the instructions on the wiki
  
  3999   Tue Nov 30 16:02:18 2010 josephbUpdateCDSstatusIssues:
1) Turns out the /opt/rtcds/caltech/c1/target/gds/param/testpoint.par
file had been emptied or deleted at one point,
  
  4000   Tue Nov 30 18:15:52 2010 JenneUpdateSUSETMX ready to be installed. ETMY ready for winching[Jenne, Kiwamu]
We put ETMX back in its tower, and
confirmed its balance.  It might be
 StatusTable.png 
  4001   Tue Nov 30 19:35:09 2010 ZachUpdateelogrestarted again Restarted the elog again, this time
using .../elog/start-elog.csh,
which Joe pointed out works just fine. I
  
  4002   Wed Dec 1 02:39:00 2010 SureshUpdateSUSInstallation of ETMU07 as ETMX[Kiwamu, Jenne, Koji, Suresh]
The following steps in this process
were completed.
  
  4003   Wed Dec 1 12:02:49 2010 josephb, alexUpdateCDSRebuilding frame builder with latest codeProblem:
The front ends seem to have different
gps timestamps on the data than the frame
  
  4004   Wed Dec 1 13:41:21 2010 josephb, alex, rolfUpdateCDSTiming is backProblem:
We had
timing problems across the front ends.
Solution:
Noticing
  
  4006   Thu Dec 2 02:50:12 2010 kiwamuUpdateSUSETMX installed [Suresh, Kiwamu]
 We
  
  4007   Fri Dec 3 05:21:11 2010 kiwamuUpdateGreen Lockinglocked the laser to the cavityI succeeded
in locking the end green laser to X arm with
  
  4008   Fri Dec 3 14:34:23 2010 ranaUpdateCDSfooling around in the FB rackThis morning (~0100) I started to redo
some of the wiring in the rack with the FB
in it. This was in an effort to activate
  
  4009   Fri Dec 3 15:37:10 2010 josephbUpdateCDSfb, front ends fixed - tested RFM between c1ioo and c1iscexProblem:
The front ends
and fb computers were unresponsive this morning.
  
  4014   Mon Dec 6 11:59:41 2010 josephbUpdateCDSNew c1lsc computer moved to lsc rackComputer
moved:
The c1lsc computer has been moved
  
  4015   Mon Dec 6 16:49:43 2010 josephbUpdateCDSc1lsc halfway to workingC1LSC
Status:
The c1lsc computer is running Gentoo
  
  4016   Mon Dec 6 22:18:39 2010 kiwamuUpdateGreen Lockingaligned the beam axis [Suresh and Kiwamu]
We
  
  4018   Mon Dec 6 23:33:15 2010 JenneUpdateSUSETMU05 winched, balanced, glued!!!!!![Suresh, Jenne]
 StatusTable.png 
  4019   Tue Dec 7 12:12:40 2010 kiwamuUpdateCDSadded some more DAQ channels[Joe and Kiwamu]
We
added some more DAQ channels on c1sus.
  
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