40m QIL Cryo_Lab CTN SUS_Lab TCS_Lab OMC_Lab CRIME_Lab FEA ENG_Labs OptContFac Mariner WBEEShop
  40m Log, Page 288 of 341  Not logged in ELOG logo
ID Date Author Type Categoryup Subject Text Attachments
  4596   Mon May 2 13:30:13 2011 kiwamuUpdateSUSPRMI locking prep: PRM oplevI had a quick look at PRM optical lever.
The He-Ne beam is still successfully
coming out from the chamber and I could guide
  
  4599   Mon May 2 17:10:55 2011 steveUpdateSUSPRM oplevThe returning spot diameter on the qpd
~10 mm. In order to reduce the spot size
I moved the f 1145 mm lens toward the PRM
  
  4611   Tue May 3 13:22:13 2011 LeoUpdateSUSRe: DRMI prep : suspension diagnosticHere are the free-swinging spectra for
the BS, ETMX, ETMY, ITMX, ITMY, MC1, MC2,
MC3, and PRM chambers.  Kiwamu left
 10x 
  4613   Tue May 3 15:04:20 2011 kiwamuUpdateSUSRe: DRMI prep : suspension diagnosticJenne went through all the suspension racks
and pushed all the connectors.
After pushing them, we had a quick
  
  4616   Tue May 3 16:20:13 2011 steveUpdateSUSPRM & BS oplevs are ready

    

       
            
 P1070630.JPGP1070632.JPG 
  4626   Wed May 4 13:57:04 2011 kiwamuUpdateSUSmechanical resonances updated[Leo  w/ a little help from Kiwamu]
Leo
summarized the mechanical resonances of all
  
  4646   Thu May 5 17:19:21 2011 Leo SingerConfigurationSUSTuning notch filters for bounce mode suspensionsI am tuning the notch filters for the bounce
modes in the suspensions, starting with the
ITMs and ETMs.  I'll do the MCs, the
 itmx-before.pdfitmx-before.pdfitmx-withbounceroll.pdftimx-nobounceroll.pdf 
  4652   Fri May 6 14:59:36 2011 Leo SingerConfigurationSUSTuning ITMY bandstopI tuned the ITMY bandstops -- 'before'
and 'after' spectra attached.  Note
that the after the tuning, the bounce mode
 itmy-before.pdfitmy-after.pdfitmy-nobounceroll.pdf 
  4655   Fri May 6 17:11:55 2011 steveUpdateSUSSRM-oplev cable The SRM qpd cable was removed from the
BS-table. It's path was changed from 1x4
to ITMY-table following the inner cable tray.
  
  4682   Tue May 10 22:56:17 2011 kiwamuUpdateSUSf2p filters installed on ETMYNew f2p filters
were installed on ETMY.  
 f2p_etmy.png 
  4683   Tue May 10 23:14:01 2011 kiwamuUpdateSUSETMX_OPLEV : He-Ne laser dead ?I
found that a He-Ne laser which has been used
for ETMX_OPLEV was NOT giving the light.
  
  4686   Wed May 11 11:05:45 2011 steveUpdateSUSETMX_OPLEV : He-Ne replaced

    

       
            
 P1070672.JPG 
  4687   Wed May 11 11:24:59 2011 steveUpdateSUSSRM-oplev qpd is back

    

       
            
 srm-prm_oplevs.jpg 
  4688   Wed May 11 11:44:52 2011 kiwamuUpdateSUSf2p filters installed on ITMYNew f2p
filters were installed on 
 f2p_itmy.png 
  4693   Wed May 11 21:58:30 2011 ranaUpdateSUSETMX_OPLEV : He-Ne replaced

    
        
  
  4713   Fri May 13 17:20:48 2011 Leo SingerConfigurationSUSTuned bounce and roll mode of ETMY suspensionI tuned the bounce and roll mode bandstops
for ETMY, although it was difficult for me
to tell if there was improvement with the
  
  4719   Sun May 15 12:42:29 2011 kiwamuUpdateSUSf2p ratio adjutment done for all the suspensionsThe f2p adjustment
for all the suspensions are done
 f2p_summary.pdf 
  4731   Tue May 17 16:53:22 2011 kiwamuUpdateSUSoplev sign was wrong on ETMYLast
night I found that the sign of the oplev
control of PITCH on ETMY was wrong.
  
  4734   Tue May 17 19:38:32 2011 kiwamuUpdateSUSwrong connection on 1X5Today Steve was working around the 1X5
rack to strain relief the cable jungles and
the
 wrong.pngcorrect.png 
  4752   Fri May 20 01:02:50 2011 loose connection hunterUpdateSUSloose connection on ETMY rackThe
UL signal of the shadow sensor on ETMY went
to zero this evening. 
 ETMY_loose.png 
  4775   Tue May 31 17:30:42 2011 steveUpdateSUSETMY damping restoredETMY's watch dogs were found tripped. They
were restored.
  
  4780   Thu Jun 2 16:23:42 2011 JamieUpdateSUSSUS control models updated to use new sus_single_control library partA new library part was made for the single
suspension controller (it was originally
made from the c1scx controller), using the
  
  4791   Mon Jun 6 22:41:22 2011 ranaUpdateSUSSwitching problem in SUS modelsSome
weeks ago, Joe, Jamie, and I reworked the
ETMY controls.
 a.pdf 
  4792   Mon Jun 6 23:56:16 2011 rana, valeraConfigurationSUSETMX/ETMY OSEM whitening We measured the OSEM PD whitening
transfer function of the ETMX OSEM UL whitening
stage (
  
  4793   Tue Jun 7 11:39:27 2011 JamieUpdateSUSNo binary output module in ETMY
    

       
            
  
  4802   Thu Jun 9 20:10:38 2011 kiwamuUpdateSUSETMY whitening filter : all offI checked
the state of the whitening filters for the
 ETMY_WF2.png 
  4827   Thu Jun 16 00:43:36 2011 KojiUpdateSUSVertex SUS Binary Output Boxes were turned off / need investigation- I was investigating the SUS whitening
issue.
- I could not find any suspension
  
  4828   Thu Jun 16 08:45:14 2011 steveUpdateSUSVertex SUS Binary Output Boxes removed

    

       
            
 P1070894.JPG 
  4829   Thu Jun 16 23:19:09 2011 KojiUpdateSUSVertex SUS Binary Output Boxes removed[Jamie, Koji]
- We found the reason why some
of the LEDs had no light. It was because
  
  4831   Fri Jun 17 08:03:48 2011 steveUpdateSUSITMY sus damping restoredITMY sus damping restored.
 
  
  4833   Fri Jun 17 17:02:15 2011 JamieUpdateSUSETMX/ETMY binary output modules (re)installed, not yet testedI have installed a new binary output module
in ETMY, where there was none previously. 
It is installed, powered (with working LEDs),
  
  4836   Mon Jun 20 09:04:13 2011 steveUpdateSUSETMX damping restoredETMX sus damping restored   
  4839   Mon Jun 20 11:04:03 2011 NicoleUpdateSUSWork Plan for Week 2Here is my work plan for this week:
Current Week Plan (Week 2)
  
  4844   Mon Jun 20 18:12:20 2011 NicoleUpdateSUSSmall Table Cleaned and Levelled    P6220198.JPGP6220199.JPG 
  4853   Wed Jun 22 12:24:44 2011 NicoleSummarySUSMidweek 2 Work SummaryI
have made my transfer function model
 P6220200.JPG 
  4858   Wed Jun 22 18:41:23 2011 NicoleSummarySUSBROKEN bread board circuit box and L9337 LED Current Versus Voltage CurveNOTE: The potentiometers on the  LED_I_vs_V_exp_plot.png 
  4868   Thu Jun 23 21:35:46 2011 Jamie, Rana, KiwamuUpdateSUSFix calibration for sus sensorsWe have fixed the counts-to-micron (cts2um)
calibration for the suspension sensor filters.
 Each suspension sensor filter bank (e.g.
  
  4869   Thu Jun 23 22:00:22 2011 JamieUpdateSUSburt snapshotI recorded a burt snapshot of these settings:
/opt/rtcds/caltech/c1/burt/autoburt/snapshots/2011/Jun/23/21:40
  
  4875   Fri Jun 24 01:05:32 2011 NicoleSummarySUSTransfer Function Model Analysis Summary and New Posted LED V vs. I CurveI have updated   
  4876   Fri Jun 24 07:40:23 2011 steveUpdateSUSPRM damping restoredThe PRM sus damping restored. C1:SUS-PRM_SDPD_VAR
is still 20-30mV and going up.  Side
gain  turned on. This pulled it down
  
  4879   Fri Jun 24 17:04:25 2011 NicoleUpdateSUSBasic Laser Safety Training; Moved TT Mirror; Horizontal Displacement Mech PlanToday Ishwita,
Sonali, and I completed basic laser safety
 CompiledParts.JPGHorizontalDispMount.JPG 
  4887   Sun Jun 26 18:35:16 2011 ranaHowToSUSfree swing all opticsI used scripts/SUS/freeswing-all.csh to
give the optics a kick and then turn off
their watchdogs and collect the free swinging
 ringdown.png 
  4892   Tue Jun 28 01:18:53 2011 ranaHowToSUSfree swing all opticsChris Wipf tells me that the EPICS Mutex
Jumbo Mumbo can be overcome by upgrading
our EPICS. We should get one of Jamie's assistants
  
  4902   Tue Jun 28 21:05:05 2011 JamieUpdateSUSSUS control model updatedI have updated the sus_single_control model,
adjusting/cleaning up/simplifying the LSC/POS
input signals, and routing new signals to
  
  4904   Tue Jun 28 22:36:04 2011 JamieUpdateSUSChecking binary switching of SUS whitening filterI have been checking the binary output
switching for the SUS whitening filters.
It appears that the whitening switching is
 botest.py 
  4906   Wed Jun 29 01:23:21 2011 haixingUpdateSUSissues in the current quad maglev systemHere I show several issues that we have
encountered in the quad magnetic levitation
system. It would be great if you can give
 config_2.png 
  4907   Wed Jun 29 11:13:13 2011 JenneUpdateSUSissues in the current quad maglev system


   
        
            
  
  4908   Wed Jun 29 11:25:07 2011 NicoleSummarySUSWeekly Summary of WorkUpdate of Week
3 Work:
  
  4913   Wed Jun 29 22:35:06 2011 NicoleSummarySUSCompleted Quad photodiode Box Circuit DiagramsI have finished
drawing the circ
 summingcircuit.jpgQPDYcircuit.jpgQPDX_2circuit.jpg 
  4916   Thu Jun 30 01:50:02 2011 JenneUpdateSUSITMX whitening, ETMX left free swingingWhile closing up the whitening shop for
the night, I noticed that the ITMX whitening
state (Whitening "On") is opposite
  
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