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  40m Log, Page 124 of 355  Not logged in ELOG logo
ID Date Author Typeup Category Subject Text Attachments
  3608   Sat Sep 25 19:01:13 2010 KojiUpdateElectronicstesting TTFSSHow much current do you need for each voltages?
GE-82 was the only PNP transister
I could find in the lab. It's too old but
  
  3609   Sun Sep 26 18:29:23 2010 rana, JohnUpdateCDSModified front end medm screensIssues
 megamind-poster3.jpg 
  3610   Mon Sep 27 00:33:50 2010 ranaUpdatePSLHigh Voltage Driver added to TTFSS -> NPROWe added the Thorlabs HV Driver in
between the FSS and the NPRO today.
The FSS is locking with it, but we
  
  3612   Mon Sep 27 17:35:13 2010 josephbUpdateCDSUpdated Suspension screens/Megatron now c1ioo/Further work on fbThe medm screens have been updated further,
with the hidden matrices added in bright
colors.  An example screen shot is attached.
 MC1_Example_Screen.png 
  3613   Mon Sep 27 21:57:59 2010 ZachUpdateelogelog restarted took two runs of the script as usual   
  3615   Tue Sep 28 10:07:29 2010 josephbUpdateCDSUpdated Suspension screens/Megatron now c1ioo/Further work on fb

    
        
  
  3616   Tue Sep 28 14:12:14 2010 steveUpdateGeneralvertex crane drive is out of orderThe vertex crane drive is overheating,
it stopped functioning. Service man will
be here tomorrow morning.
  
  3617   Tue Sep 28 21:11:52 2010 koji, taraUpdateElectronicsFixing the new TTFSSWe
found a small PCB defect which is an excess
copper shorting circuit on the daughter board,
 before.jpgafter.jpgbefore.jpgafter.jpg 
  3618   Wed Sep 29 01:53:44 2010 ranaUpdatePSLpaths broken and VCO turned offI found that several linux libraries have
been moved around and disabled today. In
particular, I see a bunch of new stuff in
  
  3619   Wed Sep 29 11:18:36 2010 josephbUpdateCDSApps code changesAfter asking Alex specifically what he
did yesterday after I left, he indicated
he copied  a bunch of stuff from Hanford,
  
  3621   Wed Sep 29 15:34:46 2010 kiwamuUpdateGeneralfixing vertex crane
    

       
            
  
  3622   Wed Sep 29 16:56:36 2010 yutaUpdateVAC2 doors opened(Steve, Koji, Joe, Kiwamu, Yuta)
Background:
 The vent was started on Monday,
  
  3623   Wed Sep 29 18:28:32 2010 yutaUpdateComputersaldabella connects to the wireless networkBackground:
 We need laptops that connect
to the wireless network to use them in the
  
  3624   Thu Sep 30 09:34:58 2010 steveUpdateGeneralvertex crane trolly drive fixed


   
        
            
 P1060891.JPGP1060887.JPGP1060889.JPGP1060893.JPG 
  3625   Thu Sep 30 11:07:20 2010 josephb, alexUpdateCDStest points starting to workThe centos 5.5 compiled gds code is currently
living on rosalba in the /opt/app directory
(this is local to Rosalba only).  It
  
  3626   Thu Sep 30 13:43:29 2010 steveUpdateSAFETYpropane gas smell in control roomThe control room's north west corner smelled
like propane gas  yesterday around 16:30
We all agreed that the smell was
  
  3627   Thu Sep 30 14:09:33 2010 yutaUpdateComputersmariabella connects to the wireless networkBackground:
 We need laptops that connect
to the wireless network to use them in the
  
  3628   Thu Sep 30 16:29:35 2010 josephb, alexUpdateCDSfb updateThere currently seems to be a timing issue
with  the frame builder.  We switched
over to using a symmetricom card to get an
  
  3629   Thu Sep 30 17:11:01 2010 alex iUpdateCDSDAQ system updateThe frame builder is timed from the Symmetricom
GPS card now, which is getting the IRIGB
timecode from the freq. distribution amplifier
  
  3630   Thu Sep 30 18:51:50 2010 yutaUpdateComputerssetting up aldabella and mariabella(Kiwamu, Yuta)

Background:
  
  3631   Thu Sep 30 21:55:31 2010 ranaUpdateCDSDAQ sys updateIts pretty exciting to see that Joe got
Alex to actually use the ELOG. Its a proof
that even rare events occur if you are patient
 Untitled.png 
  3632   Fri Oct 1 10:56:30 2010 josephb,alexUpdateCDSfb work continuedAlex fixed the time issue with the IRIG-B
signal being far off, apparently their IRIG-B
signal in downs seems to be different. 
  
  3635   Fri Oct 1 14:13:29 2010 josephb, alexUpdateCDSfb work that still needs to be done1) Need to check 1 PPS signal alignment

2) Figure out why 1PPS and ADC/DAC
  
  3636   Fri Oct 1 16:34:06 2010 josephbUpdateCDSc1sus not booting due to fb dhcp server not runningFor some reason, the dhcp server running
on the fb machine which assigns the IP address
to c1sus (since its running a diskless boot)
  
  3638   Fri Oct 1 18:19:24 2010 josephb, kiwamuUpdateCDSc1sus workThe c1sus model was split into 2, so that
c1sus controls BS, PRM, SRM, ITMX, ITMY,
while c1mcs controls MC1, MC2, MC3. 
  
  3639   Fri Oct 1 18:53:33 2010 josephb, kiwamuUpdateCDSThings needing to be done next weekWe realized we cannot build code with the
current RCG compiler on c1ioo or c1iscex,
since these are not Gentoo machines. 
  
  3640   Fri Oct 1 21:34:14 2010 rana, taraUpdatePSLHigh Voltage Driver added to TTFSS -> NPRO

    
        
 NPROTF.png2010_10_01.png 
  3641   Mon Oct 4 06:47:46 2010 rana, taraUpdatePSLHigh Voltage Driver added to TTFSS -> NPROInside the FSS box, the FAST path has a
~10 Hz pole made up from the 15k resistor
and the 1 uF cap before the output connector.
  
  3642   Mon Oct 4 11:20:45 2010 josephbUpdateCDSFixed Suspension binary output list and sus modelI've updated the CDS wiki page listing
the wiring of the 40m suspensions with the
correct binary output channels.  I previously
  
  3644   Mon Oct 4 15:28:10 2010 josephbUpdateCDSTrying to get c1ioo booting as Gentoo.I modified the dhcpd.conf file in /etc/dhcp
on the fb machine.  I added a entry
for c1ioo, listing its MAC address and ip
  
  3645   Mon Oct 4 19:48:00 2010 yutaUpdateVACseveral mirrors installed to ITMX/BS chamber(Koji, Kiwamu, Yuta)
Lots of progress
 P1060901.JPGP1060904.JPG 
  3648   Tue Oct 5 13:46:26 2010 josephb, alexUpdateCDSRestarted fb trendingFb is now once again actually recording
trends.
A section of the daqdrc file (located
  
  3649   Tue Oct 5 13:52:15 2010 ranaUpdateCDSproof of trend   Untitled.png 
  3651   Tue Oct 5 14:11:09 2010 josephb, alexUpdateCDSGoing to from rtlinux to Gentoo requires front end code clean outApparently when updating front end codes
from rtlinux to the patched Gentoo, certain
files don't get deleted when running make
  
  3653   Tue Oct 5 16:58:41 2010 josephb, yutaUpdateCDSc1sus front end statusWe moved the filters for the mode cleaner
optics over from the C1SUS.txt file in /opt/rtcds/caltech/c1/chans/
to the C1MCS.txt file, and placed SUS_ on
  
  3656   Tue Oct 5 21:22:46 2010 yutaUpdateVACgreen beam reached PSL tableY  IMG_3627.jpg 
  3659   Wed Oct 6 12:00:23 2010 josephb, yuta, kiwamuUpdateCDSFound and fixed filter sampling rate problem with suspensionsWhile we looking using dtt and going over
the basics of its operation, we discovered
that the filter sample rates for the suspensions
  
  3662   Wed Oct 6 16:16:48 2010 josephb, yutaUpdateCDSc1sus statusAt the moment, c1sus and c1mcs on the c1sus
machine seem to be dead in the water. 
At this point, it is unclear to me why.
  
  3663   Wed Oct 6 22:46:36 2010 kiwamuUpdateGreen LockingSHG at PSL table I
put some optics to get the green SHG on the
  
  3665   Thu Oct 7 10:37:42 2010 josephbUpdateCDSc1sus with flaky sshCurrently trying to understand why the
ssh connections to c1sus  are flaky. 
This morning, every time I tried to make
  
  3666   Thu Oct 7 10:48:41 2010 josephb, yutaUpdateCDSc1sus statusThis
problem has been resolved.
Apparently during one of Alex's debugging
  
  3667   Thu Oct 7 14:39:50 2010 yutaUpdatePSLmeasured PMC's laser power-output relation(Rana, Yuta)

Motivation:
 PMCreflect.png 
  3668   Thu Oct 7 14:57:52 2010 josephb, yutaUpdateCDSc1sus statusAround noon, Yuta and I were trying to
figure out why we were getting no signal
out to the mode cleaner coils.  It turns
  
  3669   Thu Oct 7 15:05:46 2010 KojiUpdatePSLmeasured PMC's laser power-output relationIt was a bit difficult to comprehend the
result.
Is it good? or bad? Have you seen
  
  3670   Thu Oct 7 15:21:51 2010 steveUpdatePSLRF filter for PMCWe got two small RF filter for the PMC
from Valera  They are made by http://www.larkengineering.com/  
"MC35.5-3-AB" sma, 29300-01
 35.5MHZ.pdf 
  3672   Thu Oct 7 16:34:06 2010 yutaUpdatePSLmeasured PMC's laser power-output relationResult2:
 Attached is the visibility vs
incident power(assuming output of the PD
 PMCvis.png 
  3673   Thu Oct 7 17:19:55 2010 josephb, alex, rolfUpdateCDSc1sus statusAs noted by Koji, Alex and Rolf stopped
by.
We discussed the feasibility of getting
  
  3674   Thu Oct 7 17:53:07 2010 yutaUpdateComputersFarfalla with Firefox, fixed(Kiwamu, Yuta)

Symptom:
  
  3675   Thu Oct 7 23:24:44 2010 yutaUpdateCDSchecking MC1 suspension dampingBackground:
 The new CDS is currently being
set up.
  
  3678   Fri Oct 8 12:21:11 2010 josephbUpdateCDSchecking MC1 suspension damping Upon investigation, it appears that the
c1mcs model was (and still is) timing out
after a random amount of time.  Or in other
  
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