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  40m Log, Page 190 of 341  Not logged in ELOG logo
ID Date Author Type Category Subject Text Attachments
  7618   Thu Oct 25 06:49:49 2012 KojiUpdate my assesment of the folding mirror (passive tip-tilt) situation

    

       
            
  
  7617   Thu Oct 25 02:10:22 2012 KojiUpdate my assesment of the folding mirror (passive tip-tilt) situationThe thinner wire has a history that it
did not improve the hysteresis (ask Jenne).
Nevertheless, it's worth to try.
  
  7616   Thu Oct 25 02:01:15 2012 KojiUpdateComputer Scripts / ProgramsPhase map summary of LaserOptik mirrorsPrevious phasemap data and analysis for
the new 40m COC are summarized on the following
page
  
  7615   Wed Oct 24 22:48:46 2012 janoschUpdateComputer Scripts / ProgramsPhase map summary of LaserOptik mirrors
  
  7614   Wed Oct 24 22:20:24 2012 DenUpdateAdaptive Filteringmicrophone noise

    

       
            
 mic_64k.pdf 
  7613   Wed Oct 24 20:09:41 2012 jamieUpdate installing the new dirchoic mirros in PR3/SR3When installing the dichroics we need to
pay attention to the wedge angle.  I
didn't, so the ghost beam is currently point
  
  7612   Wed Oct 24 19:55:06 2012 jamieUpdate my assesment of the folding mirror (passive tip-tilt) situationWe removed all the folding mirrors ({P,S}R{2,3})
from the IFO and took them into the bake
lab clean room.  The idea was that at
  
  7611   Wed Oct 24 18:42:39 2012 ManasaUpdateComputer Scripts / ProgramsPhase map summary of LaserOptik mirrors

    

       
            
 12x 
  7610   Wed Oct 24 17:02:01 2012 JenneUpdateAdaptive Filteringmicrophone noise

    

       
            
  
  7609   Wed Oct 24 15:29:52 2012 ranaUpdateAdaptive Filteringmicrophone noise  We have to change the sample
rate and AA filter for the mic channels before
going too far with the circuit design.
  
  7608   Wed Oct 24 14:19:01 2012 JenneUpdateAlignmentPhase map summary of LaserOptik mirrors

    

       
            
  
  7607   Wed Oct 24 14:15:34 2012 AyakaUpdateAdaptive Filteringmicrophone noisePrevious results
I am measuring the noise level of
the microphones. The circuit does not seems
 mic_open.pngmic_noise.png 
  7606   Wed Oct 24 11:49:07 2012 JenneUpdateAlignmentGame plan for the dayJamie has arranged for phase map measurements
this afternoon, so I will take the 6 dichroic
LaserOptik optics over to Downs at 1:15 this
  
  7605   Wed Oct 24 09:15:12 2012 SteveUpdateVACvacuum rack 24V ps was current limited

    

       
            
 currentlimited24V.jpg 
  7604   Wed Oct 24 01:02:10 2012 KojiUpdateSUS PITCH damping neededWow... This is even more complicated than
the original "Y" design...
  
  7603   Tue Oct 23 18:21:21 2012 JenneUpdateAlignmentPower supply at OMC removed

    

       
            
  
  7602   Tue Oct 23 18:18:29 2012 JenneUpdateSUS PITCH damping needed

    

       
            
  
  7601   Tue Oct 23 18:12:18 2012 JenneUpdateAlignmentTip tilt wires - the truth

    

       
            
  
  7600   Tue Oct 23 17:41:20 2012 ManasaUpdateAlignmentPower supply at OMC removed

    

       
            
  
  7599   Tue Oct 23 17:30:33 2012 jamie, nic, jenne, raji, manasaUpdateAlignmentInitial attempts to fix IFO alignmentWe went into the vertex today to see about
fixing the alignment.  The in-air access
connector is in place, and we took heavy
  
  7598   Tue Oct 23 17:12:30 2012 DenUpdateSUS PITCH damping needed Koji and Steve pointed out that previous
design  of a damping bracket was
a bit complicated to manufacture. So I made
 simple_drawing.PDF 
  7597   Tue Oct 23 16:18:03 2012 SteveUpdateVACRoughing pumps on for oil change

    

       
            
 oilchange.jpg 
  7596   Tue Oct 23 10:24:42 2012 AyakaUpdateAdaptive Filteringmicrophone noise

    

       
            
  
  7595   Tue Oct 23 09:37:33 2012 SteveUpdateSUS passive TT adjustment correction

    

       
            
 IMG_1745.JPG 
  7594   Tue Oct 23 08:45:00 2012 SteveUpdateVACvent day 3

    

       
            
 ventd4.pngIMG_1743.JPG 
  7593   Tue Oct 23 01:46:53 2012 DenUpdateSUS PITCH damping needed

    

       
            
 Mirror_Holder_ECD_NEW_DRAWING.PDFTT_DAMPING_DRAWING.PDF 
  7592   Tue Oct 23 00:51:41 2012 JamieUpdateAdaptive Filteringmicrophone noise

    

       
            
  
  7591   Tue Oct 23 00:41:55 2012 JenneUpdateAlignmentMC locked, spots centered[Jenne, Raji]
We replaced the MC Refl path BS with
the Y1, as usual, so that the full ~100mW
 Screenshot-Figure_1.png 
  7590   Mon Oct 22 21:20:36 2012 JenneUpdatePSLBeam attenuation optics in place[Jenne, Raji (before dinner)]
We put the beam attenuation optics
in place.  Before putting any optics
  
  7589   Mon Oct 22 20:44:49 2012 AyakaUpdateAdaptive Filteringmicrophone noiseI will do some experiments on acoustic
noise canceling during my stay.
Now I am planning to cancel acoustic
 mic_noise2.png 
  7588   Mon Oct 22 11:26:12 2012 ranaUpdateSUS PITCH damping needed 
Too bad - I thought it would at least
give a little damping. Since we want the
  
  7587   Mon Oct 22 09:10:07 2012 SteveUpdateVAC@750Torr

    

       
            
 ventOct222012.png 
  7586   Sat Oct 20 20:37:55 2012 DenUpdateSUS PITCH damping needed

    

       
            
 DSC_4778.JPGpitch.JPGyaw.JPGDSC_4776.JPG 
  7585   Sat Oct 20 01:23:56 2012 DenUpdateSUS PITCH damping needed

    

       
            
 P1010059.jpgP1010058.jpgP1010060.jpg 
  7584   Fri Oct 19 19:26:42 2012 JenneUpdateVACvent has started

    

       
            
  
  7583   Fri Oct 19 18:30:07 2012 DenUpdateSUS PITCH damping needed

    

       
            
 damp.pngpitch.png 
  7582   Fri Oct 19 16:45:39 2012 SteveUpdateVACvent has started

    

       
            
  
  7581   Fri Oct 19 16:24:39 2012 ranaUpdateLockingAlignment is really bad?? 
 VENT
  
  7580   Fri Oct 19 12:45:12 2012 DenUpdateCDSc1lsc is up after reboot    
  7579   Fri Oct 19 01:21:42 2012 EvanUpdateLockingAligning PZTs, PRM[Evan, Jenne]
Tonight we made an attempt at getting
the PRM + ITMY aligned with correct input
  
  7578   Fri Oct 19 01:11:18 2012 JenneUpdateIOOMCL, WFS triggers

    

       
            
  
  7577   Fri Oct 19 00:55:35 2012 JenneUpdateComputersc1lsc is down (at least all of the models)When Evan and I were dithering the BS and
ITMY (see his elog), I noticed that c1lsc
was acting weird.  the IOP was the only
  
  7576   Thu Oct 18 15:36:57 2012 SteveUpdateCamerasWatec cameras & Tamron lensesI purchased 3x  1/2"
ccd cameras and 3x  F  50
mm lenses for the lab.
 10181201.PDF 
  7575   Thu Oct 18 12:02:32 2012 DenUpdateIOOMCL, WFS triggers

    

       
            
  
  7574   Thu Oct 18 08:00:40 2012 jamieUpdateComputersRe: Lots of new White :(

    

       
            
  
  7573   Thu Oct 18 03:57:20 2012 JenneUpdateLockingAlignment is really bad??The goal of the night was to lock the Y
arm.  (Since that didn't happen, I moved
on to fixing the WFS since they were hurting
  
  7572   Thu Oct 18 03:45:56 2012 JenneUpdateIOOMCL, WFS triggers

    

       
            
  
  7571   Thu Oct 18 02:42:38 2012 DenUpdateSUS PITCH damping needed

    

       
            
 7x 
  7570   Wed Oct 17 19:35:58 2012 KojiUpdateComputersRe: Lots of new White :(Solved. The power code of c1iscaux was
loose. 
  
  7569   Wed Oct 17 18:41:27 2012 JenneUpdateCamerasCamera looking at ETMY baffleThe camera titled "watec_mobile"
is looking at the front of the black glass
baffle (i.e. the side facing the ITM) on
  
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