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  40m Log, Page 248 of 344  Not logged in ELOG logo
ID Date Author Type Category Subjectup Text Attachments
  4434   Wed Mar 23 16:06:20 2011 Larisa ThorneUpdateElectronicsUpdate on cable laying [Steve, Suresh, Larisa]
The following cables were laid today:
ETMYT, ETMY, IFOPO, MC1, OMCR, AS Spare,
  
  13125   Wed Jul 19 08:37:21 2017 JamieUpdateCDSUpdate on front-end/DAQ rebuild After the catastrophic fb disk failure
last week we lost essentially the entire
front end system (not any of the userapp
  
  13127   Wed Jul 19 14:26:50 2017 JamieUpdateCDSUpdate on front-end/DAQ rebuild  




  
  13130   Fri Jul 21 18:03:17 2017 JamieUpdateCDSUpdate on front-end/DAQ rebuild Update:


front ends booting with
the new Debian jessie diskless root image
  
  14885   Mon Sep 16 20:22:19 2019 gautamSummaryCDSUpdate on the Acromag status
Jordan (new Engineer) and Chub
neatened out the cabling at 1Y2/1Y3 today.
After their work, I plugged in all the Dsubs
 acromagChecklist.pdf 
  4764   Wed May 25 19:03:59 2011 JamieConfigurationCDSUpdate rtcds checkout of cds_user_apps with new top-level directory names.The top-level subsystem subdirectories
in the cds_user_apps source repository were
renamed today to be all lower case. 
  
  5408   Wed Sep 14 20:04:05 2011 jamieUpdateCDSUpdate to frame builder wiper.pl script for GPS 1000000000I have updated the wiper.pl script (/opt/rtcds/caltech/c1/target/fb/wiper.pl)
that runs on the framebuilder (in crontab)
to delete old frames in case of file system
  
  3085   Fri Jun 18 13:42:52 2010 KojiHowToGeneralUpdate your workAll SURFs (and all others as always) are
supposed to post the update of your status
on the elog.
  
  6956   Wed Jul 11 09:48:24 2012 LizSummaryComputer Scripts / ProgramsUpdate/daily summary testingI have been
working on configuration of the Daily Summary
webpages and have been attempting to create
  
  5265   Thu Aug 18 22:24:08 2011 jamieOmnistructureVIDEOUpdated 'videoswitch' scriptI have updated the 'videoswitch' program
that controls the video MUX.  It now
includes the ability to query the video mux
  
  1205   Mon Dec 29 18:01:07 2008 AidanUpdateAuxiliary lockingUpdated 40m Upgrade Document T080074-00-R
Added a paragraph to the 40m Upgrade document
describing the fiber stabilization and frequency
  
  11115   Sat Mar 7 19:23:27 2015 JenneUpdateLSCUpdated ALSwatch scriptLast report on model change / screen work
from yesterday.

The ALSwatch script has always
  
  15738   Fri Dec 18 22:59:12 2020 JonConfigurationCDSUpdated CDS upgrade planAttached is the layout for the "intermediate"
CDS upgrade option, as was discussed on Wednesday.
Under this plan:
 CDS_2020_Dec.pdfCDS_2020_Dec.graffle 
  15742   Mon Dec 21 09:28:50 2020 JamieConfigurationCDSUpdated CDS upgrade plan


Quote:


  
  15746   Wed Dec 23 23:06:45 2020 gautamConfigurationCDSUpdated CDS upgrade plan
The diagram should clearly show
the host machines and the expansion chassis
and the interconnects between them.
We
  
  15771   Tue Jan 19 14:05:25 2021 JonConfigurationCDSUpdated CDS upgrade planI've produced updated diagrams of the
CDS layout, taking the comments in 15476 into
 40m_CDS_Network_-_Planned.pdf40m_CDS_Network_-_Current.pdf 
  15772   Tue Jan 19 15:43:24 2021 gautamConfigurationCDSUpdated CDS upgrade planNot sure if 1Y1 can accommodate both c1sus2
and c1bhd as well as the various electronics
chassis that will have to be installed. There
  
  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.
  
  913   Tue Sep 2 22:43:16 2008 YoichiConfigurationPSLUpdated FSS open loop TFSince the LO level of the FSS servo was too
low, I replaced the RF oscillator board with
a combination of
 OPLTF.png 
  14330   Tue Dec 4 10:38:12 2018 JonOmnistructureUpgradeUpdated Feedthrough List for Vacuum Acromag ChassisBased on new input from Chub, attached
is the revised list of signal cable
feedthroughs needed on the vacuum system
 acromag_chassis_feedthroughs.pdf 
  4808   Mon Jun 13 12:34:21 2011 Jamie, KojiUpdateLSCUpdated LSC model installedAfter a couple of hickups, I was able to
compile and install Koji's rework of the
LSC model.
  
  2610   Wed Feb 17 12:45:19 2010 josephbUpdateComputersUpdated Megatron and its firewallI updated the IP address on the Cisco Linksys
wireless N router, which we're using to keep
megatron separated from the rest of the network. 
  
  2392   Thu Dec 10 18:27:48 2009 MottUpdateGeneralUpdated R & T MeasurementsAttached are updated plots of the T&R
Measurements for a variety of mirrors, and
diagrams for the setup used to make the measurements.
 6x 
  17134   Wed Sep 7 14:32:15 2022 AnchalUpdateSUSUpdated SD coil gain to keep all coil actuation signals digitally same magnitudeThe coil driver actuation strength for
face coils was increased by 13 times in LO1,
LO2, SR2, AS1, AS4, PR2, and PR3.
  
  3612   Mon Sep 27 17:35:13 2010 josephbUpdateCDSUpdated Suspension screens/Megatron now c1ioo/Further work on fbThe medm screens have been updated further,
with the hidden matrices added in bright
colors.  An example screen shot is attached.
 MC1_Example_Screen.png 
  3615   Tue Sep 28 10:07:29 2010 josephbUpdateCDSUpdated Suspension screens/Megatron now c1ioo/Further work on fb

    
        
  
  13004   Mon May 22 15:01:41 2017 jigyasaUpdatetelescope designUpdated Telescope design with 1'' eye pieceI examined
the use of a single lens system for the available
range of focal lengths, for the required
 1incep.pdf 
  11395   Wed Jul 8 17:46:20 2015 JessicaSummaryGeneralUpdated Time Delay PlotsI re-measured the transfer function for
Cable B, because the residuals in my previous
post for cable B indicated a bad fit. 
 resid_CableA.pngresid_CableB.png 
  17122   Wed Aug 31 11:39:48 2022 YehonathanUpdateLSCUpdated XARM noise budget{Radhika, Paco, Yehonathan}

For educational purposes we update
the XARM noise budget and add the POX11 calibrated
 Screenshot_2022-08-31_11-38-46.png 
  3978   Tue Nov 23 16:55:14 2010 josephbUpdateCDSUpdated appsUpdated
Apps:
I created a new setup script for
  
  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'
  
  2844   Mon Apr 26 11:29:37 2010 josephbUpdateComputersUpdated bitwise.pm in RCG SVN plus other fixesTo fix a problem one of the models was
having, I checked the CVS version of the
Bitwise.pm file into the SVN (located in
  
  16037   Thu Apr 15 17:24:08 2021 JonUpdateCDSUpdated c1auxey wiring planI've updated the c1auxey wiring
plan for compatibility with the new suspension
electronics. Specifically it is based on
 C1AUXEY_Chassis_Feedthroughs_-_By_Connector.pdf 
  16052   Mon Apr 19 21:54:55 2021 YehonathanUpdateCDSUpdated c1auxey wiring planExcept for the feed-throughs that require
a DB9-M connector I finished wiring and labeling
the Acromag, following Jon's updated
  
  16092   Wed Apr 28 18:56:57 2021 Yehonathan, JonUpdateCDSUpdated c1auxey wiring planWe took a Supermicro from the lab (along
with a keyboard, a mouse, and a screen taken
from a table on the Y arm) and placed it
  
  16098   Thu Apr 29 16:35:51 2021 YehonathanUpdateCDSUpdated c1auxey wiring planI installed the EPICs base, asyn and modbus
modules according to Jon's
instructions.
  
  16103   Thu Apr 29 19:55:45 2021 YehonathanUpdateCDSUpdated c1auxey wiring planWe received a stock of DB9 male feed-through
connectors. That allowed me to complete the
remaining wiring on the c1auxey Acromag chassis.
  
  16107   Fri Apr 30 19:18:51 2021 Yehonathan, JonUpdateCDSUpdated c1auxey wiring planWe finished the installation procedure
on the c1auxey1 host machine. There were
some adjustments that had to be made for
  
  16114   Mon May 3 20:36:46 2021 Yehonathan, JonUpdateCDSUpdated c1auxey wiring planIt seemed like the BIO channels were not
working, both the inputs and the outputs.
The inputs were working on the windows machine
  
  4200   Tue Jan 25 15:20:38 2011 josephbUpdateCDSUpdated c1rfm model plus new naming convention for RFM/DolphinAfter
sitting down for 5 minutes and thinking about
it, I realized the names I had been using
  
  4265   Wed Feb 9 15:26:22 2011 josephbUpdateCDSUpdated c1scx with lockin, c1gcv for green transmission pdUpdated
the c1scx model to have two Lockin demodulators
(C1:SUS-ETMX_LOCKIN1 and C1:SUS-ETMX_LOCKIN2). 
  
  3715   Thu Oct 14 10:59:10 2010 josephbUpdateComputersUpdated cshrc.40m and Computer Restart ProceduresI started modifying the cshrc.40m file
in /cvs/cds/caltech/ so that it starts pointing
at the new directories.
  
  6161   Tue Jan 3 17:46:38 2012 Updated Stewart platform design requirementsUpdateGeneralUpdated design requirements for a Stewart platformI updated the design requirements for the
Stewart platform.  I weighed the unloaded
"dirty" SOS that was sitting on
 stewart.pdf 
  10383   Thu Aug 14 14:58:03 2014 JenneUpdateGeneralUpdated game plan   2014_Aug_14.pdf 
  10385   Thu Aug 14 15:42:29 2014 KojiUpdateGeneralUpdated game plan - ALS
End PDH UGF improvement / post mixer
LPF investigation (with in 2 weeks)
  
  10386   Thu Aug 14 15:51:37 2014 JenneUpdateGeneralUpdated game plan

    

       
            
  
  10387   Thu Aug 14 18:02:11 2014 KojiUpdateGeneralUpdated game planGot the idea of ASC.
- Oplevs for PR2, PR3 => PR2 seems
OK. PR3 almost impossible. well
  
  10388   Thu Aug 14 18:05:05 2014 JenneUpdateGeneralUpdated game plan

    

       
            
  
  10423   Fri Aug 22 13:51:00 2014 JenneUpdateGeneralUpdated game plan   40mToDoList.pdf 
  4212   Thu Jan 27 15:16:43 2011 josephbUpdateCDSUpdated generate_master_screens.pyI modified
the generate_master_screens.py script in
/opt/rtcds/caltech/c1/medm/master/ to handle
  
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