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ID Date Author Type Category Subject Text Attachments
  6506   Sat Apr 7 01:56:05 2012 kiwamuUpdateLSCOSA signal in DRMI conditionIt wasn't a dream or illusion -- I was
locking the DRMI to the right condition last
Wednesday (#6489).
 OSA.png 
  6505   Sat Apr 7 01:45:02 2012 Mike J.UpdateComputersEven Better Hysteresis Model and Plots The new hysteresis model is slightly
based on the SHO equation, but with the force
being out of phase with the position by an
 hyst_v3.pnghyst_v_3.pnghyst_v_3-x(t).png 
  6504   Sat Apr 7 00:31:12 2012 keikoUpdateLSCRAM simulation for Full ifoI didn't
understand how CARM can be decreased 2 orderes
of magnitude and PRCL can be INCREASED by
 plot4a.pngplot4b.png 
  6503   Fri Apr 6 20:38:41 2012 Mike J.UpdateComputersSensoray Turns out that the "MPEG-4 VES"
video format is just bad for captured video. 
Everything except "MP4" and "MPEG-TS"
  
  6502   Fri Apr 6 20:24:31 2012 Mike J.UpdateComputersSensorayThe Sensoray device is currently viewing
Monitor 4 and plugged into Pianosa. 
The user interface is run at /home/controls/Downloads/sdk_2253_1.2.2_linux/python
  
  6501   Fri Apr 6 20:05:12 2012 JamieSummaryGeneralLaser Emergency ShutoffWe reset the interlock and restarted the
PSL.  The end AUX lasers seem to have
come back online fine.  PMC and mode
  
  6500   Fri Apr 6 19:40:57 2012 Mike J.SummaryGeneralLaser Emergency ShutoffI accidently shut off the laser at 19:34
with the emergency shutoff button while trying
to tap into a video line for the Sensoray
  
  6499   Fri Apr 6 19:04:35 2012 JenneUpdatePEMSTS releveled, GUR2 plugged in[Den, Jenne]
We were wondering why the STS-2 signal
was funny.  When I went to look at it,
  
  6498   Fri Apr 6 16:35:37 2012 DenUpdateComputersc1iooc1ioo computer can not connect to the framebuilder
and everything is red in the status for this
machine, C1:FEC-33_CPU_METER is not moving.
  
  6497   Fri Apr 6 16:22:15 2012 DenUpdateEnvironmentseism boxI've changed R2 resistor in the seism box
for the VERT 1 channel from 464 Ohm to 1051
Ohm to reduce the gain of this channel by
  
  6496   Fri Apr 6 15:06:05 2012 DenUpdateIOO1 Hz resonanceI think we can try to damp 1 Hz resonance
more. In September it was not seen because
of the digital noise. After we've figured
 psd_mcl.jpgmcl.jpg 
  6495   Fri Apr 6 14:39:21 2012 JamieUpdateComputersRAID array is rebuilding....The RAID (JetStor SATA 416S) is indeed
resyncing itself after a disk failure. 
There is a hot spare, so it's stable for
  
  6494   Fri Apr 6 11:32:09 2012 JenneUpdateComputersRAID array is rebuilding....Suresh reported to Den, who reported to
me (although no elogs were made.....) that
something was funny with the FB.  I
  
  6493   Fri Apr 6 11:14:34 2012 JenneUpdateAdaptive Filteringstatic and adaptive

    

       
            
  
  6492   Fri Apr 6 10:31:07 2012 DenUpdateAdaptive Filteringstatic and adaptiveI've run static and adaptive filters simultaneously.
AA32 filters rotate the phase of the witness
signals GUR1X and GUR1Y and now the performance
 static_oaf.pdf 
  6491   Fri Apr 6 09:57:24 2012 DenUpdateAdaptive Filteringstatic starts to workI made static filter to work to evaluate
the actuator TF.. Here is the result of static
filtering:
 7x 
  6490   Thu Apr 5 18:24:55 2012 DenConfigurationAdaptive Filteringoaf starts to workToday I tried to make the lms filter to
work online. I played around with the signals
(GUR1_X and MC_F) to pre-whiten them and
 oaf2.pdf 
  6489   Thu Apr 5 07:19:16 2012 kiwamuUpdateLSCDRMI locking I
tried locking the DRMI to the signal-extraction
condition with the new trigger by AS110.
 DRMI_2012Apr4_edit.png 
  6488   Thu Apr 5 06:27:51 2012 kiwamuUpdateLSCAS110 sideband monitor installed[Jenne / Kiwamu]

 We
  
  6487   Thu Apr 5 01:07:08 2012 Mike J.UpdateComputersHysteresis PlotsHere are the hysteresis plots from the
most recent
model, which uses a modified harmonic
 SHO_hyst_plot.png 
  6486   Wed Apr 4 23:57:35 2012 keikoUpdateLSCRAM simulation for Full ifo I'm still wondering whether iteration
version or simple version is closer approximation
to the real situation. Sorry for few explanations
  
  6485   Wed Apr 4 21:43:16 2012 Mike J.UpdateComputersBetter Hysteresis ModelA better hysteresis model based on the
simple harmonic oscillator equation. Useless
variables have been removed and output can
 SHO_hyst.png 
  6484   Wed Apr 4 13:25:29 2012 jamieConfigurationPEMPEM_SLOW (i.e. seismic RMS) channels aquiring

    

       
            
 2012-04-04-132346_1182x914_scrot.png 
  6483   Tue Apr 3 22:50:37 2012 keikoUpdateLSCRAM simulation for Full ifoKoji and
Jamie suggested me to include the coupling
between DoFs when I calculate the last matrix.
  
  6482   Tue Apr 3 15:50:58 2012 keikoUpdateLSCRAM simulation for Full ifoOops,
Yesterday's results for DARM was wrong!
  
  6481   Tue Apr 3 14:17:18 2012 keikoUpdateLSCRAM simulation for Full ifoI add a flow-chart drawing what the scripts
do and how the scripts calculate the LSC
matrix.
 flowchart.png 
  6480   Tue Apr 3 14:11:33 2012 keikoUpdateLSCRAM simulation for Full ifo

    

       
            
  
  6479   Tue Apr 3 12:42:19 2012 Mike J.UpdateComputersHysteresis ModelHere's my first hysteresis model in Simulink.
It's based on the equation y=Amplitude*sin(frequency*t+phase)+(hysteresis/frequency2)
as a solution to y''+frequency2*y+hysteresis=0.
 hysteresis1.mdl 
  6478   Tue Apr 3 01:52:15 2012 ZachUpdateLSCRAM simulation for Full ifo

    

       
            
  
  6477   Mon Apr 2 23:06:38 2012 SureshUpdateIOOBeam Profile measurement: IPPOS beam: Mystery deepens
 40mOpticsLocations.pdfBeam-Profile_IPPOS_wError.pdfBeam-Profile_PRM_1_wError.pdf 
  6476   Mon Apr 2 18:58:32 2012 JenneUpdateIOOBeam Profile measurement: IPPOS beamSuresh noted that I never wrote down the
waist positions of the beam propagated through
the MMT (based on where we think it is from
 NonOptimized_propagatedWaistPlotted_LowRes.png 
  6475   Mon Apr 2 18:24:34 2012 keikoUpdateLSCRAM simulation for Full ifo I extended my RAM script from DRMI
(3DoF) to the full IFO (5DoF).
Again, it calculates the operation
  
  6474   Sat Mar 31 08:01:07 2012 kiwamuUpdateLSCDRMI measurementI have measured the sensing matrix of the
DRMI although the lock still doesn't stay
for a long time.
  
  6473   Fri Mar 30 17:37:09 2012 steveUpdateGeneralcutting green welding glass for beam dumps

    

       
            
 IMG_0096.JPG 
  6472   Fri Mar 30 10:24:14 2012 steveUpdateSUSnew OSEM locking plunger

    

       
            
 new_OSEM_locker_screw.jpgIMG_0109.JPGIMG_0111.JPG 
  6471   Fri Mar 30 10:20:51 2012 kiwamuUpdateLSClocking last nightI was trying to make the DRMI lock more
robust.
Increasing the gains of the oplev
  
  6470   Fri Mar 30 09:37:13 2012 steveUpdateSAFETYsafety audit 2012 CORRECTIONS

    

       
            
  
  6469   Fri Mar 30 08:58:37 2012 steveUpdateSAFETYSafety glasses checkedBob cleaned all safety glasses in 10 %
Liquinox soap in water solution first. 
The  transmittance of glasses were checked
 safety_glasses_checked.jpg 
  6468   Thu Mar 29 20:13:21 2012 jamieConfigurationPEMPEM_SLOW (i.e. seismic RMS) channels added to fb masterI've added the PEM_SLOW.ini file to the
fb master file, which should give us the
slow seismic RMS channels when the framebuilder
  
  6467   Thu Mar 29 19:13:56 2012 JamieOmnistructureComputersWireless router for GCI retrieved the newly "secured"
router from Junaid.  It had apparently
been hooked up to the GC network via it's
  
  6466   Thu Mar 29 18:42:11 2012 keikoUpdateLSCPOP22/POP110 amplifiresAdding two amplifiers on POP22/110,
I checked the signals going to the dmod board
of 22 and 110.
 P3290004.JPGP3290005.JPG 
  6465   Thu Mar 29 13:23:05 2012 JenneOmnistructureComputersWireless router for GC

    

       
            
 IMG_0079.JPG 
  6464   Thu Mar 29 11:29:27 2012 keikoUpdateLSCPOP22/POP110 amplifiresYesterday I and Kiwamu connected two amplifiers
(mini-circuit, ZFL-1000LNB+) for POP22/110.
Dataviewer can see some signals. I'll test
  
  6463   Wed Mar 28 21:15:53 2012 ranaOmnistructureComputersWireless router for GCI installed a NETGEAR Wireless Router (WPN824N)
today on the 131 network. The admin password
for it as well as the wireless access password
  
  6462   Wed Mar 28 20:54:02 2012 JenneUpdateIOOBeam Profile measurement: IPPOS beamI fitzed by hand with the numbers for the
incident angles on MMT1 and MMT2, and then
let the code optimize the position of MMT1
 MMT_moved_by_1pt3meters_MMT1th_25_MMT2th_12_LowRes.pngMMT_moved_by_1pt3meters_MMT1th_25_MMT2th_12_LowRes.png 
  6461   Wed Mar 28 18:26:47 2012 JenneUpdateIOOBeam Profile measurement: IPPOS beamMore calculations....
Game Plan:  Using MC
waist measured beam as the starting point
 OptimizedMMT_halfMeterChange_IPPOSviewLowRes.pngOptimizedMMT_halfMeterChange_IFOviewLowRes.pngOptimizedMMT_pt2cMeterChange_IPPOSviewLowRes.pngOptimizedMMT_pt2cMeterChange_IFOviewLowRes.png 
  6460   Wed Mar 28 01:17:29 2012 JenneUpdateIOOBeam Profile measurement: IPPOS beamAs I was a little dissatisfied with the
inaccuracy in the distance numbers in Kiwamu's
sketch, I went back to the 18 Dec 2010 table
 BetterDistances_IPPOSLowRes.pngBetterDistances_MainIFO_PRMnormalLowRes.pngBetterDistances_MainIFO_PRMflippedLowRes.png 
  6459   Tue Mar 27 23:37:35 2012 SureshUpdateIOOBeam Profile measurement: IPPOS beam

    

       
            
 Beam-Profile_IPPOS_wError.png 
  6458   Tue Mar 27 21:37:51 2012 keikoConfigurationIOOBeam Profile measurement: IPPOS beam From the mode measurement I and Suresh
have done yesterday, I calculated what beam
size we expect at ETM ((1) upper Fig.1)  and
 9x 
  6457   Tue Mar 27 21:20:32 2012 JenneUpdateIOOBeam Profile measurement: IPPOS beam

    

       
            
 BeamProp_usingMeas2012MMTnumbersLowRes.png 
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