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ID Dateup Author Type Category Subject Text Attachments
  2268   Fri Nov 13 15:01:07 2009 JenneUpdateComputersUpdated wiki with RCG instructions/tips

    
        
  
  2269   Fri Nov 13 22:01:54 2009 KojiUpdateComputersUpdated wiki with RCG instructions/tipsI continued on the STAND ALONE
debugging of the megatron codes.
  
  2270   Sat Nov 14 06:46:48 2009 KojiUpdateComputersUpdated wiki with RCG instructions/tipsI am still working on the c1aaa code. Now
it seems that C1AAA is working reasonably
  
  2271   Sun Nov 15 18:42:10 2009 AlbertoUpdateLockingInterferometer fully locked for 3331 secondsThis afternoon, I tried to lock the interferometer
again after a few days.
After a couple of failed attempts,
  
  2272   Mon Nov 16 09:37:41 2009 steveUpdatePEMconstruction is getting noisier 
ATM1: Seismometers are saturating,
suspensions are OK
 4hces.pngP1050734.JPGP1050736.JPG 
  2273   Mon Nov 16 15:13:25 2009 josephbUpdateComputersezcaread updated to Yoichi style ezcawriteIn order to get the gige camera code running
robustly here at the 40m, I created a "Yoichi
style" ezcaread, which is now the default,
  
  2274   Mon Nov 16 15:18:10 2009 haixingUpdateSUSStable magnetic levitation without eddy-current damping


 mag_levi_new.jpgblock_diagram_new.png 
  2275   Mon Nov 16 15:58:02 2009 josephbConfigurationGeneralAdded Gige camera to AP table, added some screensI placed a GC750 gige camera looking at
a pickoff of the AS port, basically next
to the analog camera, on the AP table.
  
  2276   Mon Nov 16 17:24:28 2009 josephbConfigurationComputersCamera medm functionality improvedCurrently the Camera medm screen (now available
from the sitemap), includes a server and
client script buttons.  The server has
  
  2277   Mon Nov 16 17:35:59 2009 kiwamuUpdateLSCOMC-LSC timing get synchronized !An interesting thing was happened in the
OMC-LSC timing clock.
Right now the
 OMC-LSC.png 
  2278   Tue Nov 17 00:42:12 2009 KojiUpdateComputersUpdated wiki with RCG instructions/tipsDmass, Joe, Koji

A puzzle has been solved:
Dmass gave us a great tip
  
  2279   Tue Nov 17 10:09:57 2009 josephbUpdateEnvironmentFumesThe smell of diesel is particularly bad
this morning.  Its concentrated enough
to be causing me a headache.  I'm heading
  
  2280   Tue Nov 17 11:09:43 2009 KojiConfigurationSUSETMY suspension conencted to megatron ADC/DACI have connected ETMY sus electronics to
megatron ADC/DAC.
We continue this state until 15:00
  
  2281   Tue Nov 17 13:39:37 2009 KojiConfigurationSUSETMY suspension conencted to megatron ADC/DAC0) Now the connection for the ETMY suspension
was restored in a usual state. It damps
well.
  
  2282   Tue Nov 17 15:23:06 2009 KojiConfigurationSUSETMY suspension conencted to megatron ADC/DACOK.
Now, Timing/ADC/DAC are working. It's almost
there.
1) As a temporaly
  
  2283   Tue Nov 17 15:54:34 2009 ranaSummaryPEM40 days of weatherthe inside temperature is alarming at the
red level today - should check if the HIHI
value is set correctly
 Untitled.pdf 
  2284   Tue Nov 17 21:09:17 2009 Jenne, ranaUpdateGeneralLittle Thorlabs Photodiode[Rana, Jenne]
We opened up the little Thorlabs
battery operated PD to see what was inside. 
 ThorlabsPD.png 
  2285   Tue Nov 17 21:10:30 2009 KojiConfigurationSUSETMY suspension conencted to megatron ADC/DACKoji, Rana
The megatron DAC was temporaly connected
to the suspension electronics for the DAC
  
  2286   Tue Nov 17 21:10:35 2009 ranaSummaryElectronicsBusby Low Noise Box: Photos and Upgrades   IMG_0217.JPGbusby-noise.png 
  2287   Tue Nov 17 21:21:30 2009 robUpdateSUSETMY UL OSEMHad been disconnected for about two weeks. 
I found a partially seated 4-pin LEMO cable
coming from the OSEM PD interface board. 
  
  2288   Wed Nov 18 00:38:33 2009 ranaSummaryElectronicsVoltage Noise of the SR560's OUTPUTs (the back panel)I've
measured the voltage noise of the SR560's
lead acid battery outputs; they're not so
 sr560.png 
  2289   Wed Nov 18 01:12:15 2009 ranaUpdatePEMseismometers were not saturating during Halloween weekend   Untitled.png 
  2290   Wed Nov 18 11:27:33 2009 Koji, josephbConfigurationSUSETMY suspension conencted to megatron ADC/DAC

    
        
  
  2291   Wed Nov 18 12:33:30 2009 Koji, josephbConfigurationSUSETMY suspension conencted to megatron ADC/DACHurraaaah!
We've got the damping of the suspension.
The Oplev loops has also worked!
The
 Untitled.png 
  2292   Wed Nov 18 14:55:59 2009 kiwamuUpdateElectronicsmulti-resonant EOM --- circuit design ----The circuit design of multi-resonant EOM
have proceeded.
By using numerical
 whole_circuit.pngdesigned.pngmont.png 
  2293   Wed Nov 18 16:24:25 2009 peteConfigurationSUSETMY suspension conencted to megatron ADC/DAC/cvs/cds/caltech/target/fb/daqd -c daqdrc
This starts the FB.
Now the dataviewer and DTT work!
  
  2294   Wed Nov 18 16:58:36 2009 kiwamuUpdateElectronicsmulti-resonant EOM --- EOM characterization ---In designing the whole circuit it is better
to know the characteristic of the EOM.
I made impedance measurement with
 EOM_impedance.png 
  2295   Wed Nov 18 22:38:17 2009 KojiUpdateElectronicsmulti-resonant EOM --- EOM characterization ---How can I get those values from the figure?

  
  2296   Thu Nov 19 08:53:12 2009 peteFrogsEnvironmentdiesel fumes Instead of doing RCG stuff, I went
to Millikan to work on data analysis as I
couldn't stand the fumes from the construction.
  
  2297   Thu Nov 19 09:25:19 2009 steveUpdateMOPAwater was added to the laser chillerI added ~500 cc of distilled water to the
laser chiller yesterday.
 htempwtr.png 
  2298   Thu Nov 19 09:48:54 2009 steveUpdatePEMconstruction effect8 days plot: Thurdsay, Friday, Sat and
Sun without construction
 varseism.png 
  2299   Thu Nov 19 09:55:41 2009 josephbUpdateComputersTrying to get testpoints on megatronThis is a continuation from last night,
where Peter, Koji, and I were trying to get
test point channels working on megatron and
  
  2300   Thu Nov 19 10:19:04 2009 josephbUpdateComputersMegatron tst statusI did a full make clean and make uninstall-daq-tst,
then rebuilt it.  I copied a good version
of filters to C1TST.txt in /cvs/cds/caltech/chans/
  
  2301   Thu Nov 19 11:33:15 2009 josephbConfigurationComputersMegatron I tried rebooting megatron, to see if that
might help, but everything still acts the
same. 
  
  2302   Thu Nov 19 16:04:48 2009 AlbertoConfigurationelogElog debugging output - Down time programmed today to make changesWe want the elog process to run in verbose
mode so that we can see what's going. The
idea is to track the events that trigger
  
  2303   Thu Nov 19 18:49:55 2009 AlbertoConfigurationelogElog debugging output - Down time programmed today to make changes

    
        
  
  2304   Fri Nov 20 00:18:45 2009 ranaSummaryCamerasVideo MUX Selection Wiki pageSteve is summarizing the Video Matrix
choices into this Wiki page:
http://lhocds.ligo-wa.caltech.edu:8000/40m/Electronics/VideoMUX
  
  2305   Fri Nov 20 11:01:58 2009 josephb, alexConfigurationComputersWhere to find RFM offsetsAlex checked out the old rts (which he
is no longer sure how to compile) from CVS
to megatron, to the directory:
  
  2306   Fri Nov 20 11:14:22 2009 josephb, alexConfigurationComputerstest points working on megatron and we may have filters with switch outputs built inAlex tooked at the channel definitions
(can be seen in tpchn_C1.par), and noticed
the rmid was 0. 
  
  2307   Fri Nov 20 11:32:48 2009 HaixingUpdateSUSMagnetic levitationI added an integrator to increase
the gain at low frequencies (below 5 Hz).
In addition, I increased
 IntDiff.PNGS8007340.jpgS8007333.jpg 
  2308   Fri Nov 20 13:54:45 2009 AlbertoOmnistructureEnvironmentNew Paper and Cardboard Recycling Bins Introduced to the 40mThe 40m produces a large amount of paper
and cardboard waste. It would be worth it
if we disposed those kind of garbages for
 DSC_1030.JPGDSC_1031.JPG 
  2309   Fri Nov 20 16:18:56 2009 robConfigurationSUSwatchdog rampdownI've changed the watchdog rampdown script
so it brings the SUS watchdogs to 220, instead
of the 150 it previously targeted. 
  
  2310   Fri Nov 20 17:44:38 2009 JenneUpdateAdaptive FilteringSome svn shenanigans[Sanjit, Jenne]
Sanjit and I are trying to put names
to some signals which exist in SimuLink land,
  
  2311   Mon Nov 23 00:46:09 2009 rana, robUpdatePSLISS RIN: Its too high by 10xThis plot shows the RIN as measured
by the ISS. Its ~2 x 10^-7, whereas its supposed
to be more like 3 x 10^-8.
 Untitled.png 
  2312   Mon Nov 23 10:11:03 2009 steveUpdatePEMlong term temp fluctuation of the 40m lab

    
        
 7ytemp.jpg 
  2313   Mon Nov 23 11:03:00 2009 steveUpdateSUSjackhammer special well under control


   
        
            
 dig10d.pngP1050740.JPG 
  2314   Mon Nov 23 16:28:12 2009 steveSummaryCamerasVideo swicher options


   
        
            
  
  2315   Mon Nov 23 17:53:08 2009 JenneUpdateComputers40m frame builder backup acting funnyAs part of the fb40m restart procedure
(Sanjit and I were restarting it to add some
new channels so they can be read by the OAF
  
  2316   Mon Nov 23 19:36:28 2009 JenneUpdateAdaptive FilteringHow to add ASS channels, so that they're saved to frames[Jenne, Sanjit]
We would like several channels from
the OAF/ASS screen to be saved to frames,
  
  2317   Mon Nov 23 21:30:29 2009 JenneUpdateLSCMeasured MC lengthWith Koji's help, I measured the length
of the Mode Cleaner.
The new modulation frequencies (as
  
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