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  40m Log, Page 124 of 341  Not logged in ELOG logo
ID Date Author Typeup Category Subject Text Attachments
  3931   Tue Nov 16 10:47:45 2010 AidanUpdateGreen LockingRebooted c1psl - added new GRNBEAT_FREQ channelI restored C1:PSL-126MOPA_126MON to its
original settings (EGUF = -410, EGUL = 410)
and added a new calc channel called C1:LSC-EX_GRNBEAT_FREQ
  
  3932   Tue Nov 16 12:47:30 2010 AidanUpdateGreen LockingPID loop but no greenThe PID loop is ready to be run on the
green beat note but, since the tanks are
open, there is no green transmission from
 Screenshot-C1LSC_EX_GRN_SLOW.adl.png 
  3933   Tue Nov 16 15:32:18 2010 valeraUpdateElectronicsOSEM noise at the output of the satellite box I measured the SRM OSEM (no magnets
at the moment) noise out of the satellite
box with a SRS785 spectrum analyzer. I inserted
 osemnoise.pdf 
  3934   Tue Nov 16 16:00:26 2010 AidanUpdateGreen LockingPID loop but no green

    

       
            
  
  3935   Tue Nov 16 21:42:31 2010 ranaUpdateCDSScreen Time FixI learned today that the following python
code will do a find/replace to fix the TIME
string on any MEDM screen which has a whited
  
  3936   Tue Nov 16 23:36:29 2010 Suresh, JenneUpdateSUSAssembly of ETMs[Jenne,
Suresh]
 
 StatusTable.png 
  3937   Wed Nov 17 02:53:41 2010 yutaUpdateIOOplaced new PRM to BS table(Kiwamu, Yuta)

Background:
  
  3938   Wed Nov 17 10:39:20 2010 josephbUpdateCDSScreen Time FixAn improved python code to apply a replacement
to all *.adl files in a directory would be:
import
  
  3939   Wed Nov 17 15:49:53 2010 ranaUpdateDAQOle Channel NamesThe following channels should be named
as below to keep in line with their names
pre-upgrade rather than use _DAQ in the name.
  
  3940   Wed Nov 17 16:02:30 2010 josephbUpdateCDSModified feCodeGen.pl to fix filtMuxMatrix name generationProblem:
Sometime in the last 3 weeks, probably
when Alex brought his latest changes from
  
  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 
  3943   Thu Nov 18 00:40:31 2010 yutaUpdateIOOPRM reflected beam reached AP table(Kiwamu, Yuta)

Summary:
  
  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
  
  3945   Thu Nov 18 11:06:20 2010 josephbUpdateCDSc1sus and ADCsProblem:
ADCs are timing out on c1sus when
we have more than 3.
  
  3946   Thu Nov 18 14:05:06 2010 josephb, yutaUpdateCDSc1sus is alive!Problem:
We broke c1sus by moving ADC cards
around.
  
  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,
  
  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
  
  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 
  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
  
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