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ID Date Authorup Type Category Subject Text Attachments
  5145   Mon Aug 8 22:12:58 2011 NicoleSummarySUSDaily SummaryToday I balanced the mirror, finished putting
together the second photosensor, and finished
my photosensor circuit box! 
 frontview.jpgfrontview.jpg 
  5154   Tue Aug 9 13:34:40 2011 NicoleSummarySUSNew Calibration Plots for PhotosensorsHere are the new calibration plots for
my photosensors. These calibrations were
done using a translation stage.
 ps1.jpgps2.jpg 
  5160   Tue Aug 9 19:53:56 2011 NicoleSummarySUSWeekly SummaryThis week, I have finished assembling everything
I need to begin shaking. I built an intermediary
mounting stage to mount the TT suspension
 entiresetup.jpg 
  5169   Wed Aug 10 12:32:09 2011 NicoleSummarySUSWeekly Summary UpdateLast night, I attached a metal plate to
the Vout faceplate of my photosensor circuit
box because the BNC connection terminals
  
  5178   Wed Aug 10 19:18:26 2011 NicoleSummarySUSFixed Reflective Photosensors; Recalibrated Photosensor 2Thanks to Koji's help, the second photosensor,
which was not working, has been fixed. I
have re-calibrated the photosensor after
 ps2.jpg 
  5183   Thu Aug 11 06:45:14 2011 NicoleSummarySUSShaking TestingKoji and I have finished shaking the table for the
first round of measurements (horizontal shaking).
  
  5188   Thu Aug 11 12:31:39 2011 NicoleSummarySUSPhotosensor Head Calibration Curve for TT FrameI have re-calibrated the photosensor I
used to measure the displacements of the
TT frame (what I call "Photosensor 2").
 ps2frame.jpg 
  5191   Thu Aug 11 14:22:00 2011 NicoleSummarySUSPhotosensor Head Calibration Curve for TT Frame

    

       
            
  
  5195   Thu Aug 11 16:09:05 2011 NicoleSummarySUSBode Plot for TT SuspensionAll of my plots have already taken into
account the calibration of the photosensor
(V/mm ratio)
 6x 
  5205   Fri Aug 12 11:07:50 2011 NicoleSummarySUSMore TT Shaking Completed This MorningThis morning (about 10am to 11am), I have
collected additional transfer function measurements
for the T.T. suspension. I have finished
  
  5206   Fri Aug 12 14:15:07 2011 NicoleSummarySUSBode Plot for TT SuspensionHere is my bode plot comparing the flexibly-supported
and rigidly-supported EDCs (both with no
bar)
 EXPrigidvsflex.jpg 
  5208   Fri Aug 12 15:34:16 2011 NicoleSummarySUSBode Plot for TT Suspension

    

       
            
 RIGIDexp_model.jpgflexmodcomp.jpg 
  5222   Sat Aug 13 15:40:38 2011 NicoleSummarySUSTT Shaking Today and Hopefully More?As reported in my  previous
entry of TT supsension bode plots, I
found that my experimental data had what
 emnoise_and_flex.jpg 
  5223   Sat Aug 13 15:47:47 2011 NicoleSummarySUSTT Optimization CurvesUsing my Matlab model of the flexibly-supported
eddy current damping system, I have changed
parameters to see if/how the TTs can be optimized
 magstrength1.jpgdampermass.jpgresfreq.jpg 
  5225   Sat Aug 13 21:15:47 2011 NicoleSummarySUSTT Optimization Curves


   
        
            
  
  5227   Sun Aug 14 00:26:51 2011 NicoleSummarySUSTT Optimization Curves

    
        
  
  5229   Sun Aug 14 13:57:52 2011 NicoleSummarySUSTT Optimization Curves

    

       
            
 FLEX_exp_mod_comp.jpg 
  5231   Sun Aug 14 17:47:39 2011 NicoleSummarySUSTT Shaking Today and Hopefully More?

    

       
            
 noisetest.jpg 
  4956   Fri Jul 8 09:53:49 2011 Nicole SummarySUSSummer Progress Report 1A copy of my summer
progress report 1 has been uploaded to ligodcc
  
  12047   Fri Mar 25 19:17:28 2016 NikhilUpdatePEMGuralp SeismometersCalibration
of Guralp Seismometers 

Objective
 16x 
  9106   Wed Sep 4 21:44:54 2013 Not JenneUpdateElectronicsRF distribution box: ReinstalledTemporary fix for the switch: give a bit
of oil to the button
Permanent fix: buy better switches.
  
  1349   Tue Mar 3 11:39:50 2009 OsamuDAQComputers2 PCs in Martian Kiwamu and I brought 2 SUPER MICRO
PCs from Willson house into 40m.
Both PCs are hooked up into Martian
  
  1381   Mon Mar 9 23:55:38 2009 OsamuDAQComputersbscteststand and kami1 outside martianThis morning there was a confliction of
tpman running on fb40m and kami1. Alex fixed
it temporary but Rana suggested it was better
  
  1407   Mon Mar 16 15:19:52 2009 OsamuDAQElectronicsSR785I borrowed SR785 to measure AA, AI noise
and TF.
  
  4032   Thu Dec 9 00:34:53 2010 OsamuUpdateSUSITMX oplev Pitch OLTFWe measured Open loop TF for oplev pitch
on ITMX.
 2010128_01_ITMX_oplev_pit_oltf_fine.pdf2010128_01_ITMX_oplev_pit_oltf_fine.jpg 
  4033   Thu Dec 9 01:14:42 2010 OsamuUpdateSUS After Kiwamu had set the free swinging
mode for ITMX and ETMX, I found a big jump
of ITMX pitch and yaw. This jump is shown
 20101208_ITMX_jump2.png 
  4035   Thu Dec 9 11:13:37 2010 OsamuUpdateSUS 

    
        
 jump_oplev_offset.png 
  4041   Fri Dec 10 11:04:03 2010 OsamuUpdateSUSETM oplev mufunctioning   20101208_ETMX_oplev_sum.png 
  4042   Fri Dec 10 11:51:20 2010 OsamuUpdateSUSITM seems bad   20101209_ITMX_drift.png20101209_ITMX_2stages.png 
  4087   Wed Dec 22 15:30:47 2010 OsamuUpdateASCETMY oplev fixedAccording to c1scy.mdl, OL signals should
be connected to adc_0_24 to adc_0_27 but
they were connected to adc_0_16 to adc_0_19
  
  4124   Fri Jan 7 12:01:39 2011 OsamuUpdateComputersc1lsc runningI got a new adapter board for expansion
chassis from CDS and exchanged the existing
adapter board which was laid on the floor
  
  4158   Fri Jan 14 17:58:50 2011 OsamuConfigurationGeneralStandalone RT setup I'll be gone to Hanford site next
week and come back to Caltech on 24th's week.
I setup a standalone RT system at
  
  4201   Tue Jan 25 20:42:46 2011 OsamuUpdateGreen LockingSlow servo for green laserI implemented a slow servo for green laser
thermal control on c1scx.mdl. Ch6,7 of ADC
and ch6 of DAC are assigned for this servo
  
  4214   Thu Jan 27 21:10:47 2011 OsamuUpdate40m UpgradingCalibrated noise of greenI calibrated noise spectrum of green lock.
1. Measurement of conversion factor
of ADC input from V to ct:
 20110127_Calibrated_grrennoise.pdf20110127_Calibrated_grrennoise.jpg20110127_TF_ETMXSUSEXC_to_PZTOUT.pdf 
  12469   Mon Sep 5 19:57:24 2016 OsamuUpdateSUSOSEM adjustmentsHi 40m people,

As Rana is saying, the bounce mode
does not matter, or we cannot do anything. Generally
  
  4985   Mon Jul 18 21:06:32 2011 PSL Table GuardianOmnistructurePSLDon't leave the PSL table open, unattended!!!!!!!!!!!!11111I found the
PSL table left open, and unattended again. 
  
  15693   Wed Dec 2 12:35:31 2020 PacoSummaryComputer Scripts / ProgramsTC200 python driver Given the similarities between the MDT694B
(single channel piezo controller) and TC200
(temperature controller) serial interfaces,
  
  15957   Wed Mar 24 09:23:49 2021 PacoUpdateSUSMC3 new Input Matrix[Paco]


Found IMC locked upon arrival
Loaded
newest MC3 Input Matrix coefficients using
  
  16152   Fri May 21 12:12:11 2021 PacoUpdateNoiseBudgetAUX PDH loop identification[Anchal, Paco]

We went into 40m to identify where
XARM PDH loop control elements are. We didn't
  
  16156   Mon May 24 10:19:54 2021 PacoUpdateGeneralZita IOO stripUpdated IOO.strip on Zita to show WFS2
pitch and yaw trends (C1:IOO-WFS2_PIY_OUT16
 Screenshot_from_2021-05-24_18-09-37.png24and25_05_2021_PEM_BS_10_30.png 
  16176   Wed Jun 2 17:50:50 2021 PacoUpdateEquipment loanBorrow red cartI borrowed the little red cart 🛒
to help clear the path for new optical tables
in B252 West Bridge. Will return once I am
 IMG_20210602_172858.jpg 
  16180   Thu Jun 3 17:49:46 2021 PacoUpdateEquipment loanBorrow red cartReturned today.




  
  16219   Tue Jun 22 16:52:28 2021 PacoUpdateSUSADC/Slow channels issuesAfter sliding the alignment bias around
and browsing through elog while searching
for "stuck" we concluded the ITMX
 shake_and_damp.png 
  16234   Thu Jul 1 11:37:50 2021 PacoUpdateGeneralrestarted c0rgaPhysically rebooted c0rga workstation after
failing to ssh into it (even as it was able
to ping into it...) the RGA seems to be off
  
  16248   Thu Jul 15 14:25:48 2021 PacoUpdateLSCCM board[gautam, paco]

We tested the CM board by implementing
the high bandwidth IR lock (single arm).
 high_BW_TFs.pdf 
  16254   Thu Jul 22 16:06:10 2021 PacoUpdateLoss MeasurementLoss measurement[yehonathan, anchal, paco, gautam]

We concluded estimating the XARM
and YARM losses. The hardware configuration
  
  16257   Mon Jul 26 17:34:23 2021 PacoUpdateLoss MeasurementLoss measurement[gautam, yehonathan, paco]

We went back to the loss data from
last week and more carefully estimated the
 LossMeasurement_RawData.pdfYARM_loss_stats.pdfXARM_loss_stats.pdf 
  16266   Thu Jul 29 14:51:39 2021 PacoUpdateOptical LeversRecenter OpLevs[yehonathan, anchal, paco]

Yesterday around 9:30 pm, we centered
the BS, ITMY, ETMY, ITMX and ETMX oplevs
  
  16267   Mon Aug 2 16:18:23 2021 PacoUpdateASCAS WFS MICH commissioning[anchal, paco]

We picked up AS WFS comissioning
for daytime work as suggested by gautam.
  
  16272   Fri Aug 6 17:10:19 2021 PacoUpdateIMCMC rollercoaster[anchal, yehonatan, paco]

For whatever reason (i.e. we don't
really know) the MC unlocked into a weird
 MC2_trans_sum_2021-08-06_17-18-54.png 
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