40m QIL Cryo_Lab CTN SUS_Lab TCS_Lab OMC_Lab CRIME_Lab FEA ENG_Labs OptContFac Mariner WBEEShop
  40m Log, Page 186 of 339  Not logged in ELOG logo
ID Date Author Type Category Subject Text Attachments
  7727   Mon Nov 19 20:17:53 2012 JenneConfiguration40m UpgradingEndtable upgrade for auxiliary green laser : ETMX layout on new table 
For convenience, I would include
a steering mirror in front of the TRX PD. 
  
  7726   Mon Nov 19 20:03:53 2012 ManasaConfiguration40m UpgradingEndtable upgrade for auxiliary green laser : ETMX layout on new tableI have attached the possible layout of
the optics on the new ETMX endtable. More
optics have been added when compared to the
 ETMX_endtable_New_Model.pdf 
  7725   Mon Nov 19 15:58:02 2012 SteveUpdateSAFETYsafety trainingCharles Blakemore  our new undergrad
help received 40m specific safety training
today.
  
  7724   Mon Nov 19 15:15:22 2012 JenneUpdateSUSAll oplev gains turned on

    

       
            
  
  7723   Mon Nov 19 15:12:52 2012 JenneUpdateAlignmentYarm locked IR

    

       
            
  
  7722   Sat Nov 17 22:50:17 2012 KojiUpdateAlignmentred in armsYou have constraints for the IR beams (i.e.
one PZT and one BS for 8 dofs), so now you
need to align the arms for the input IR beams.
  
  7721   Sat Nov 17 18:02:14 2012 DenUpdateAlignmentred in arms

    

       
            
  
  7720   Sat Nov 17 03:30:13 2012 Den, AyakaUpdateAlignmentred in armsWe aligned accurately 00 green in yarm,
changed voltage on PZT2 to see red flashing
at TRY at the normalized level 0.2-0.3. The
  
  7719   Fri Nov 16 09:57:57 2012 JenneUpdateGreen Lockingxarm locked

    

       
            
  
  7718   Fri Nov 16 03:12:39 2012 Ayaka, DenUpdateGreen Lockingxarm lockedWe aligned and locked xarm for green.
 etmxf.png 
  7717   Fri Nov 16 00:08:36 2012 KojiUpdateSUSMC2 woesPeople complained about the MC instability:
If
we aligned the MC, it locked nicely for a
  
  7716   Thu Nov 15 21:52:48 2012 Den, AyakaUpdateGreen Lockingyarm lockedWe aligned and locked Y arm for green:

    installed camera on PSL
to monitor green transmission
    aligned
 yarm.pngetmyf.png 
  7715   Thu Nov 15 03:09:08 2012 JenneUpdateAlignmentNo good progress, many optionsI didn't make any concrete progress today.
AS and REFL cameras are in place, and Manasa
has put ND 0.5 filters on both. I used a
  
  7714   Thu Nov 15 02:18:24 2012 DenUpdateModern ControlBS oplevI've applied LQR feedback technique to
BS oplev in pitch. I think the most inconvenient
thing in using LQR controller is the amount
 lqr_cost.pngolpit_hg.png 
  7713   Wed Nov 14 21:59:09 2012 DenUpdateCDSdaq errorsI tried to add a test point to C1MCS model
and spent next two hours rebooting front-ends,
restarting models and realigning MC.
  
  7712   Wed Nov 14 13:58:18 2012 JenneUpdateIOOTurn off MCL path before doing MC spot measurement

    

       
            
  
  7711   Wed Nov 14 09:01:42 2012 Dumb statement catcherUpdateIOOTurn off MCL path before doing MC spot measurement

    

       
            
  
  7710   Wed Nov 14 00:56:19 2012 JenneUpdateIOOWFS on, PZT2 ~set, AS camera backWFS
are back on, and working nicely. 
Den and I had seen a problem (which I had
  
  7709   Tue Nov 13 22:12:15 2012 JenneUpdateIOOTurn off MCL path before doing MC spot measurement[Jenne, Den]
We have discovered that the MCL loop
squishes the length fluctuations that result
  
  7708   Tue Nov 13 21:05:35 2012 DenUpdateAdaptive Filteringonline and simulationFor a last few days I've been working on
oaf and simulink model to simulate it. First
I did online subtraction from MC when MC_L
 8x 
  7707   Tue Nov 13 21:05:22 2012 AyakaUpdateWienerFilteringAcoustic noise cancellation with MC In order to perform acoustic noise
cancellation with MCL signal, I am trying
to find sweet spots for microphones.
 9x 
  7706   Tue Nov 13 20:13:07 2012 KojiConfiguration40m UpgradingEndtable upgrade for auxiliary green laser : Circularize the 1W NPRO beam profileThese fs are too short.


  
  7705   Tue Nov 13 16:18:51 2012 ManasaConfiguration40m UpgradingEndtable upgrade for auxiliary green laser : Circularize the 1W NPRO beam profileWith reference to measurements made earlier: elog, 
Beam parameters for Innolight 1W
  
  7704   Tue Nov 13 11:30:54 2012 ManasaConfiguration40m UpgradingEndtable upgrade for auxiliary green laserI'm set on the mission to get the new bigger endtables setup  ETMX_sch.png 
  7703   Tue Nov 13 08:34:11 2012 SteveSummaryVACpumpdown after 24days at atmosphere 
 
 pd74d1.png24datm.pngpdd1.png 
  7702   Tue Nov 13 00:28:10 2012 AyakaUpdateIOOMC locked, spots centered[Rana, Ayaka, Jenne]
We aligned the REFL beam to the center
of PD.
 spot1112.pngDSC_4902.JPGDSC_4904.JPG 
  7701   Tue Nov 13 00:27:50 2012 JenneUpdateElectronicsEthernet Illuminator Control

    

       
            
  
  7700   Tue Nov 13 00:19:51 2012 JenneUpdateCamerasITMX is just fine

    

       
            
  
  7699   Tue Nov 13 00:15:08 2012 JenneUpdateIOOInput and Output PZTs turned onI turned on the power supplies for the
output PZTs and pitch and yaw for PZT2. 
This is back to the condition that we had
  
  7698   Mon Nov 12 23:38:50 2012 CharlesUpdateElectronicsEthernet Illuminator Control

    

       
            
  
  7697   Mon Nov 12 16:52:03 2012 SteveUpdateVACpumpdown has completed The pressure is CC1 3e-4 Torr at
8 hours of pumping.  Status: vacuum
normal
 pd74.pngpd74at8h.png 
  7696   Mon Nov 12 09:21:10 2012 SteveUpdateVACpumpdown has startedI'm looking for IOO steering mirror power
supplies. I found two so far: one at 1Y3
as Kepco  + 75V and one at OMC_North
 beforepd.pngIMG_1800.JPGIMG_1801.JPG 
  7695   Fri Nov 9 18:28:23 2012 CharlesUpdateSummary PagesCalendarThe calendar tab now displays calendars
with weeks that run from Sunday to Saturday
(as opposed to Monday to Sunday). However,
  
  7694   Fri Nov 9 17:15:05 2012 Manasa, Steve, AyakaUpdateGeneralWe're closed! Pumping down monday morning

    

       
            
  
  7693   Fri Nov 9 11:38:38 2012 jamieUpdateGeneralwe're closing upAfter a brief look this morning, I called
it and declared that we were ok to close
up.  The access connector is almost
  
  7692   Fri Nov 9 08:11:57 2012 SteveUpdateAlignmentnothing moved - all good Oplevs and IP ANG are still centered.
Why  do the SRM and PRM move 5X 
more ?  I could not check the sensing
 opsingGOOD.pngop8h.png8amF.pngkeepfailing.png 
  7691   Thu Nov 8 22:04:43 2012 CharlesUpdateElectronicsEthernet Illuminator ControlConfigured ethernet controlled power strips
to have static IP addresses: 192.168.113.110,
192.168.113.111 and 192.168.113.112.
  
  7690   Thu Nov 8 20:54:08 2012 Manasa, AyakaUpdateAlignmentReconfirming on IPPOS, IPANG and oplevs centering

    

       
            
  
  7689   Thu Nov 8 20:11:54 2012 JenneUpdateAlignmentAS steering moved out of POY's way, 2 green beams onto PSL table[Jenne, Jamie, Manasa, Ayaka]
 
Flipped mount of OM2, moved OM2 behind
 AS_8Nov2012.pngREFL_8Nov2012.png 
  7688   Thu Nov 8 10:11:58 2012 AyakaUpdateWienerFilteringPlay with wiener filteringI will attach a document which describes
how the noise affect the wiener filter and
the noise cancellation ratio.
 document.pdfestimate.pngR_model.png 
  7687   Thu Nov 8 09:04:45 2012 SteveUpdateCamerasCanon T3i purchasedCanon
EOS Rebel T3i has been purchased. See
rating
 BH_409130400.pdf 
  7686   Wed Nov 7 23:22:45 2012 ranaUpdateAlignmentJamie's tip tilt proposal With Picos, we lose the ability to
dither the input beam as well as align the
beam with the IFO locked. And the active
  
  7685   Wed Nov 7 19:07:45 2012 JenneUpdateCamerasNo beam seen on external camera viewsI have written some scripts which collect
photos, then average them together, and subtract
out an averaged background (as Rana described
 BS_PRM_7Nov2012_SpotImage_pixelsTimes3.pngETMXF_7Nov2012_SpotImage_pixelsTimes3.pngETMYF_7Nov2012_SpotImage_pixelsTimes3.pngITMYF_7Nov2012_SpotImage_pixelsTimes3.pngMC2F_7Nov2012_SpotImage_pixelsTimes3.png 
  7684   Wed Nov 7 17:20:01 2012 jamieUpdateAlignmentJamie's tip tilt proposal

    

       
            
  
  7683   Wed Nov 7 15:51:44 2012 JenneUpdateAlignmentJamie's tip tilt proposalSteve's elog
7682 is in response to the conversation
we had at group meeting re: Jamie's proposed
  
  7682   Wed Nov 7 15:17:15 2012 SteveUpdateAlignmentsteering option with pico motor?We have two ready for vacuum 1.5" mirror mounts
with pico motors in our hands. 
 IMG_1795.JPG 
  7681   Wed Nov 7 14:59:35 2012 SteveUpdatePEMhigh particle count ALART & oplevs

    

       
            
 oplevs.png 
  7680   Wed Nov 7 11:43:29 2012 SteveUpdatePEMhigh particle count ALARTThe BS camber is open only. We should close
ASAP
Outside air quality is 1.7- 2.2 
 highpartcount.png 
  7679   Wed Nov 7 09:09:02 2012 SteveUpdateAlignmentAlignment-PRM and SRM  OSEM LL 1.5V are they misaligned?  9amNov7w.png 
  7678   Wed Nov 7 07:11:10 2012 ranaUpdateAlignmentAlignment- POY and oplevs. photos.The way to usually do image subtraction
is to:
1) Turn off the room lights.
  
ELOG V3.1.3-