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ID Date Author Type Category Subjectup Text Attachments
  7886   Wed Jan 9 18:59:01 2013 JenneUpdateAlignmentTT2 installed, PRM oplev layout changed[Jenne, Manasa]
PZT2 was removed from the BS table,
and packed away in a foil-lined plastic box.
  
  7890   Thu Jan 10 15:30:33 2013 JenneUpdateAlignmentTT2 pins swapped, ITMX door open 
[Bob, Manasa, Jenne]
We opened the ITMX heavy door. 
  
  4777   Wed Jun 1 13:33:22 2011 koji, taraUpdateElectronicsTTFSS #7 We replaced GE81 by PZT2907A (PNP transistor)
in TTFSS #7, it's working fine.
  Last time I broke Q4 transistor,
 q4.png 
  7492   Fri Oct 5 14:53:29 2012 JenneUpdatePSLTTFSS board not fully seated![Den, Jenne]
Den noticed that the -15V LED on
the TTFSS board was not illuminated. 
  
  3812   Thu Oct 28 19:10:26 2010 taraUpdateElectronicsTTFSS for 40mI keep a set of new TTFSS for 40m in electronic
cabinet along the North arm.
The set number is #6. It is working
  
  4512   Mon Apr 11 20:03:05 2011 taraUpdateElectronicsTTFSS for 40mI brought TTFSS set #7 to 40m and kept
it in the electronic cabinet.
note that Q4 transistor has not been
  
  7783   Tue Dec 4 18:06:35 2012 DenUpdateSUSTTs are ready Using instructions from Bram and
Suresh, I was able to plug in connectors
to BOSEMs. Today I've tested electronics,
 IMG_0105.JPGIMG_0108.JPG 
  7785   Tue Dec 4 20:13:55 2012 KojiUpdateSUSTTs are readyPlease
leave here what was the instruction by Bran
  
  7787   Tue Dec 4 21:57:04 2012 DenUpdateSUSTTs are ready

    

       
            
  
  3447   Fri Aug 20 15:22:09 2010 JenneUpdateSUSTTs done!!![Yoichi, Jenne]
Hooray!!!
  
  8282   Wed Mar 13 03:12:47 2013 Manasa, JenneUpdateLockingTWO arms TWO colors[Jenne, Manasa]

  
  8283   Wed Mar 13 08:34:33 2013 yutaUpdateLockingTWO arms TWO colors- I took the shutter from AS table to use
it for the PSL green. It was sitting near
MC REFL path unused (elog
  
  8289   Wed Mar 13 16:29:25 2013 ManasaUpdateLockingTWO arms TWO colors

    

       
            
  
  2419   Tue Dec 15 17:16:22 2009 KojiUpdateGeneralTable distance measurementsDuring the vent we have tried to measure
the distances of the optical tables for BS-ITMX
and BS-ITMY.
 Table_distance_by_metal_scale.pdfTable_distance_by_chambers.pdf 
  13926   Thu Jun 7 14:35:26 2018 keerthanaUpdateelogTable- useful for doing the scanning.I think this table will help us to fix
the scanning range of the Marconi frequency.
This will also help in predicting the position
  
  869   Fri Aug 22 10:39:41 2008 JenneUpdateSUSTaking Free Swinging spectra of PRM, SRM, ITMX, BSI'm taking free swinging spectra of PRM, SRM,
ITMX and BS, so I've turned off their watchdogs
for now. I should be done around 11:15am,
  
  13077   Fri Jun 23 02:43:43 2017 KaustubhHowToComputer Scripts / ProgramsTaking Measurements From AG4395ASummary:

I have written a code(a basic one
which needs a lot of improvements, but still
 Test_Files_and_Code.zipBode_Plot_with_Error_Bands.pdf 
  14049   Tue Jul 10 16:59:12 2018 Izabella PastranaHowToComputer Scripts / ProgramsTaking Remote TF Measurements with the Agilent 4395AI copied the netgpibdata folder
onto rossa (under the directory ~/Agilent/),
which contains all the necessary scripts
  
  3007   Fri May 28 11:35:33 2010 josephbUpdateCDSTaking a step backwards to get stuff runningI've modified the lsc.mdl and lsp.mdl files
back to an older configuration, where we
do not use an IO processor.  This seems
 working_lsc_lsp.png 
  660   Fri Jul 11 20:16:01 2008 EricDAQCamerasTaking data from the GC 750 CameraMafalda has been set up with a background
process to constantly take data from the
GC 750 camera (at the end of the x-arm) for
  
  17112   Mon Aug 29 18:25:12 2022 CiciUpdateGeneralTaking finer measurements of the actuator transfer functionTook finer measurements of the x-arm aux
laser actuator tranfer function (10 kHz -
1 MHz, 1024 pts/decade) using the Moku.
 PZT_TF_fine.pngPZT_TF_fine_mag_stdev.pngATF_fine.zip 
  5274   Sat Aug 20 23:01:39 2011 JennyUpdatePSLTaking temperature step-response data: successes and tribulationsAfter finishing my last elog entry, I monitored
the digital loop's error signal (the control
signal for the fast loop) and the output
 5hourwbigimpulse.jpg5hourwbigimpulse2.jpg23hoursbefore920pm.jpg23hoursbefore920pm2.jpg 
  4088   Wed Dec 22 15:47:22 2010 KojiUpdateVACTank closing procedure[Jenne Kiwamu Joe Osamu Steve Koji]
Yesterday (21st), we closed the BSC
and the four testmass chambers.
  
  2639   Thu Feb 25 11:21:06 2010 KojiUpdateGeneralTanks opened[Steve, Bob, Joe, Zach, Alberto, Kiwamu,
Koji]
We opened the OMC-IMC access connector,
  
  14485   Mon Mar 18 18:10:14 2019 KojiSummaryGeneralTask items and priority[Gautam/Chub/Koji] ~ Mini discussion

Maintenance / Upgrade Items

(Priority high to low)
  
  13569   Tue Jan 23 01:56:18 2018 gautamUpdateElectronicsTeledyne AP1053I have acquired 5 pieces of the Teledyne
AP1053 from Koji - these are now at the
40m. I will determine an appropriate location
 DSC00022.JPG 
  15551   Tue Sep 1 01:49:49 2020 KojiUpdateElectronicsTeledyne AP1053 etc were transportedTeledyne AP1053 etc were transported from
Rich's office to the 40m. The box is
placed on the shelf at the entrance.
 20200831203756_IMG_9931.jpg20200831203826_IMG_9932.jpg20200831205126_IMG_9934.jpg 
  6081   Wed Dec 7 09:56:14 2011 rana imitation of steveOmnistructureEnvironmentTelephone Map This is the fone
storree 
  
  14644   Fri May 31 01:38:21 2019 KruthiUpdateCamerasTelescope[Kruthi, Milind]

Yesterday, we were able to
capture some images of objects at a
 telescope_mug_image.pdf 
  14646   Mon Jun 3 16:40:48 2019 ranaUpdateCamerasTelescopeno BMP files    
  12998   Thu May 18 15:20:29 2017 jigyasaSummarytelescope designTelescope Design for the Gig-E camerasWith the objective of designing a telescope
system for the Gig-E, a system of two lenses
is implemented. A rough schematic of
 6x 
  10185   Fri Jul 11 15:29:26 2014 HarryUpdateGeneralTelescope With Collimator I used a la mode to make a design
for the coupling telescope with a 3.3um target
waist, that included the collimator in the
 telescope_2.ziptelescopeWCollimator.png 
  13868   Fri May 18 20:03:14 2018 PoojaUpdateCamerasTelescopic lens solution for GigEAim: To find telescopic lens solution to
image test mass onto the sensor of GigE camera.

I wrote a python code to find an
 8x 
  8058   Mon Feb 11 16:29:33 2013 JenneUpdateLockingTemp oplev for PR2; ITMX temporarily has no oplev[Yuta, Jenne]
In an effort to see what is going
on with the beam spot motion, and to investigate
  
  1599   Mon May 18 10:06:56 2009 carynUpdatePEMTemp sensor[quote]To see if Caryn's data dropouts were
happening, I looked at a trend of all of
our temperature channels. Looks OK now.
 datadropout.pngcoolerpic1.jpgcoolerpic2.jpg 
  1600   Mon May 18 15:31:11 2009 ranaUpdatePEMTemp sensor[quote]Picture of cooler for posterity is
attached[/quote]
 Untitled.png 
  1942   Tue Aug 25 11:02:39 2009 ranaSummaryPSLTemperature BoxThe PSL Temperature Box (D980400-B-C, what
kind of numbering scheme is that?) modified
at LHO/LLO ~8 years ago to have better resolution
 D980400-B.pdf 
  3071   Sat Jun 12 18:03:00 2010 sharmilaUpdateelogTemperature ControllerKiwamu and I setup a serial port terminal
for receiving data from TC200 via a RS-232
USB interface. It was done using a Python
  
  4260   Tue Feb 8 13:26:11 2011 AidanSummaryGreen LockingTemperature dependence of phase change of green on reflection I did a quick back of the envelope
calculation of the expected green phase change
on reflection from the aLIGO ITM.
  
  4635   Thu May 5 13:12:06 2011 JenneUpdatePSLTemperature drift, trying to shield PMC with foileeek.  I've been running around
all day, so this is an incomplete elog. 
I'll fill in more stuff in the next hour
 PSL_Temp_drift_5May2011.pngP5050092small.jpg 
  12317   Thu Jul 21 05:22:26 2016 AakashUpdateGeneralTemperature measurements across the enclosure | SURF 2016I have measured the transfer function of
temperature fluctuations inside the enclosure
to that of the temperature fluctuations outside.
 script21jul2016.mfig1.pdffig2.pdffig3.pdf 
  12323   Thu Jul 21 21:38:44 2016 AakashUpdateGeneralTemperature measurements across the enclosure | SURF 2016I have made the changes as suggested by
Gautam.
  
  12326   Fri Jul 22 05:20:26 2016 AakashUpdateGeneralTemperature measurements across the enclosure | SURF 2016Please find the new attached plots and
the new script.
 coherence.pdftransferfunc.pdftransferfuncdB.pdfscript22jul2016.m 
  6647   Wed May 16 14:06:49 2012 steveUpdateSUSTemperature rulesGuralp 1  is on the south side of
IOO chamber
 temprules.png 
  2843   Mon Apr 26 11:14:04 2010 KojiUpdateGreen LockingTemperature scan for PPKTPI scanned the temperature of the crystal
oven on Friday night in order that we can
find the optimal temperature of the crystal
 SHG_pow.png 
  16214   Fri Jun 18 14:53:37 2021 AnchalSummaryPEMTemperature sensor network proposalI propose we set up a temperature sensor
network as described in attachment 1.

Here there are two types of units:
 40mTempSensors.pdf 
  16338   Thu Sep 16 12:06:17 2021 TegaUpdateComputer Scripts / ProgramsTemperature sensors added to the summary pagesWe can now view the minute trend of the
temperature sensors under the PEM tab
of the summary pages. See attachment 1 for
 TempPlot_2021-09-16_12.04.19PM.png 
  15272   Thu Mar 12 16:13:16 2020 gautamUpdatePSLTemperature sensors connected to Acromag[jordan,
gautam]
 P_20200317_153736_vHDR_On_2.jpg 
  5228   Sun Aug 14 04:12:37 2011 JennyUpdatePSLTemperature steps and slow actuator railingBelow are some plots from dataviewer of
temperature-step data taken over the past
32 hours. (They show minute trends). I am
 Picture_6.pngPicture_7.png 
  5230   Sun Aug 14 15:37:39 2011 JennyUpdatePSLTemperature steps and slow actuator railing


   
        
            
  
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