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ID Date Author Type Categoryup Subject Text Attachments
  16355   Wed Sep 22 14:22:35 2021 Ian MacMillanSummaryComputersQuantization Noise Calculation SummaryNow that we have a model of how the SS
and IIR filters work we can get to the problem
of how to measure the quantization noise
 IIR64-bitnoisespectrum.pdf 
  16360   Mon Sep 27 12:12:15 2021 Ian MacMillanSummaryComputersQuantization Noise Calculation SummaryI have not been able to figure out a way
to make the system that Aaron and I talked
about. I'm not even sure it is possible
  
  16361   Mon Sep 27 16:03:15 2021 Ian MacMillanSummaryComputersQuantization Noise Calculation SummaryI have coded up the procedure in the previous
post: The result does not look like what
I would expect. 
 DeltaNoiseSpectrum.pdf 
  16362   Mon Sep 27 17:04:43 2021 ranaSummaryComputersQuantization Noise Calculation SummaryI suggest that you


change the corner frequency
to 10 Hz as I suggested last week. This filter,
  
  16366   Thu Sep 30 11:46:33 2021 Ian MacMillanSummaryComputersQuantization Noise Calculation SummaryFirst and foremost I have the updated bode
plot with the mode moved to 10 Hz. See Attachment
1. Note that the comparison measurement is
 SS-IIR-Bode.pdfPSD_32bit.pdfPSD_64bit.pdf 
  16481   Wed Nov 24 11:02:23 2021 Ian MacMillanSummaryComputersQuantization Noise Calculation SummaryI added mpmath
to the quantization noise code. mpmath allows
me to specify the precision that I am using
 PSD_IIR_all.pdf 
  16482   Wed Nov 24 13:44:19 2021 ranaSummaryComputersQuantization Noise Calculation SummaryThis looks great. I think what we want
to see mainly is just the noise in the 32
bit IIR filtering subtracted from the 64
  
  16492   Tue Dec 7 10:55:25 2021 Ian MacMillanSummaryComputersQuantization Noise Calculation Summary[Ian, Tega]

Tega and I have gone through the
IIR
 DF2_TS.pdfBIQ_TS.pdfScreen_Shot_2021-12-07_at_11.47.57_AM.pngPSD_COMP_BIQ_DF2.pdfPSD_COMP_SS_DF2.pdf 
  16498   Fri Dec 10 13:02:47 2021 Ian MacMillanSummaryComputersQuantization Noise Calculation SummaryI am trying to replicate the simulation
done by Matt Evans in his
presentation  (see Attachment
 G0900928-v1_(dragged).pdfPSD_COMP_BIQ_DF2.pdfInput_PSD.pdfInput_Filter.pdfQuantizationN.zip 
  16507   Wed Dec 15 13:57:59 2021 PacoUpdateComputersupgraded ubuntu on zita[Paco]

Upgraded zita's ubuntu and
restarted the striptool script.
  
  16650   Mon Feb 7 16:14:37 2022 TegaUpdateComputersrealtime system reboot problemI was looking into plotting temperature
sensor data trend and why we currently do
not have frame data written to file (on /frames)
  
  16656   Thu Feb 10 14:39:31 2022 KojiSummaryComputersNetwork security issue resolved[Mike P / Koji / Tega / Anchal]

IMSS/LIGO IT notified us that "ILOM
ports" of one of our hosts on the "114"
 PXL_20220210_220816955.jpgPXL_20220210_220827167.jpg 
  16836   Mon May 9 15:32:14 2022 Ian MacMillanSummaryComputersQuantization Noise Calculation SummaryI made the first pass at a tool to measure
the quantization noise of specific filters
in the 40m system. The code for which can
 SUS-ETMX_SUSYAW3_0.0.pdfLowNoiseBiquad2.pdfquant_noise_floor.pdf 
  16881   Fri May 27 17:46:48 2022 PacoSummaryComputersCDS upgrade visit, downfall and rise of c1lsc models[Paco, Anchal-remote, Yuta, JC]

Sometime around noon today, right
after cds upgrade planning tour, c1lsc FE
  
  16991   Tue Jul 12 13:59:12 2022 ranaSummaryComputersprocess monitoring: MonitI've installed Monit
on megatron and nodus just now, and will
set it up to monitor some of our common processes.
  
  17058   Thu Aug 4 19:01:59 2022 TegaUpdateComputersFront-end machine in supermicro boxesKoji and JC looked around the lab today
and found some supermicro boxes which I was
told to look into to see if they have any
 IMG_20220804_184444473.jpgIMG_20220804_191658206.jpgIMG_20220804_185336240.jpgIMG_20220804_185023002.jpg 
  17066   Mon Aug 8 17:16:51 2022 TegaUpdateComputersFront-end machine setupAdded 3 FE machines - c1ioo, c1lsc, c1sus
-  to the teststand following the instructions
in elog15947.
 IMG_20220808_170349717.jpg 
  17074   Wed Aug 10 20:51:14 2022 TegaUpdateComputersCDS upgrade Front-end machine setupHere is a summary of what needs doing following
the chat with Jamie today.

 
 IMG_20220810_171002928.jpgIMG_20220810_171019633.jpg 
  17083   Tue Aug 16 18:22:59 2022 TegaUpdateComputersc1teststand rack mounting for CDS upgrade[Tega, Yuta]

I keep getting confused about the
purpose of the teststand. The view I am adopting
 IMG_20220816_180157132.jpgIMG_20220816_175125874.jpg 
  17088   Wed Aug 17 11:10:51 2022 ranaUpdateComputersc1teststand rack mounting for CDS upgradewe want to be able to run SimPlant on the
teststand, test our new controls algorithms,
test watchdogs, and any other software upgrades.
  
  17098   Mon Aug 22 19:02:15 2022 TegaUpdateComputersc1teststand rack mounting for CDS upgrade II[Tega, JC]

Moved the rack to the location
of the test stand just behind 1X7 and plan
 IMG_20220822_185437763.jpgIMG_20220822_131340214.jpgc1bhd.jpegc1lsc.jpeg 
  17100   Tue Aug 23 22:30:24 2022 TegaUpdateComputersc1teststand OS upgrade - I[JC, Tega, Chris]

After moving the test stand front-ends,
chiara (name server) and fb1 (boot server)
  
  17108   Fri Aug 26 14:05:09 2022 TegaUpdateComputersrack reshuffle proposal for CDS upgrade[Tega, Jamie]

Here is a proposal for what we
would like to do in terms of reshuffling
 6x 
  17109   Sun Aug 28 23:14:22 2022 JamieUpdateComputersrack reshuffle proposal for CDS upgrade@tega This looks great, thank you for putting
this together.  The rack drawing in
particular is great.  Two notes:
  
  17111   Mon Aug 29 15:15:46 2022 TegaUpdateComputers3 FEs from LLO got delivered today[JC, Tega]

We got the 3 front-ends from LLO
today. The contents of each box are:
 IMG_20220829_145533452.jpgIMG_20220829_144801365.jpg 
  17113   Tue Aug 30 15:21:27 2022 TegaUpdateComputers3 FEs from LHO got delivered today[Tega, JC]

We received the remaining 3 front-ends
from LHO today. They each have a timing card
 IMG_20220830_144925325.jpgIMG_20220830_142307495.jpgIMG_20220830_143059443.jpg 
  17127   Fri Sep 2 13:30:25 2022 Ian MacMillanSummaryComputersQuantization Noise Calculation SummaryP.
P. Vaidyanathan wrote a chapter in the
book "Handbook
 averagefiltering.pdfAveragingFilter.py.zip 
  17144   Mon Sep 19 20:21:06 2022 TegaUpdateComputers1X7 and 1X6 work[Tega, Paco, JC]


We moved the GPS network time server
 IMG_20220919_204013819.jpgIMG_20220919_203541114.jpgIMG_20220919_203458952.jpg 
  17148   Tue Sep 20 23:06:23 2022 TegaUpdateComputersSetup the 6 new front-ends to boot off the FB1 clone[Tega, Radhika, JC]

We wired the front-ends for power,
DAQ and martian network connections. Then
 IMG_20220921_084220465.jpgdolphin_err_init_state.pngdolphin_final_state.png 
  17151   Wed Sep 21 17:16:14 2022 TegaUpdateComputersSetup the 6 new front-ends to boot off the FB1 clone[Tega, JC]

We laid 4 out of 6 fiber cables
today. The remaining 2 cables are for the
  
  17153   Thu Sep 22 20:57:16 2022 TegaUpdateComputersbuild, install and start 40m models on teststand [Tega, Chris]

We built, installed and started
all the 40m models on the teststand today.
 dolphin_state_plus_c1shimmer.pngFE_status_overview.png 
  17158   Fri Sep 23 19:07:03 2022 TegaUpdateComputersWork to improve stability of 40m models running on teststand [Chris, Tega]

Timing glitch investigation:


Moved dolphin
 dolphin_state_all_green.pngdolphin_state_IPC_glitch.png 
  309   Mon Feb 11 22:44:29 2008 robConfigurationDAQChange in channel trending on C1SUS2
I removed the MC2 optical lever related channels
from trends, and the SRM POUT and YOUT (as
 srm_sync.png 
  422   Wed Apr 16 21:11:12 2008 ranaSummaryDAQAA/AI Filters for the DAQ & FE systemsI used Foton to make up some new filters which
will be used all over the project in order
to downsample/upsample.
 DAQ_filters_080416.pdf 
  691   Thu Jul 17 16:39:58 2008 Max JonesUpdateDAQMagnetometer InstalledToday I installed the magnetometer near the
beam splitter chamber. It is located on the
BSC chamber at head height on the inner part
  
  857   Tue Aug 19 19:14:17 2008 YoichiConfigurationDAQFixed C1:IOO-MC_RFAMPDDCYoichi, Rob

C1:IOO-MC_RFAMPDDC, which is a PD at the
  
  1184   Sun Dec 7 16:12:53 2008 ranaUpdateDAQbooted awg[SIZE=3]because it was [COLOR=red]red[/COLOR][/SIZE]   
  1292   Wed Feb 11 10:52:22 2009 YoichiConfigurationDAQC1:PEM-OSA_APTEMP and C1:PEM-OSA_SPTEMP disconnectedDuring the cleanup of the lab. Steve found
a box with two BNCs going to the ICS DAQ
interface and an unconnected D-SUB on the
  
  1769   Tue Jul 21 17:01:18 2009 peteDAQDAQtemp channel PEM-PETER_FEI added a temporary channel, to input 9
on the PEM ADCU.    Beware
the 30, 31, and 32 inputs.  I tried
  
  1973   Tue Sep 8 15:14:26 2009 rana, alexConfigurationDAQRAID update to Framebuilder: directories added + lookback increased Alex
logged in around 10:30 this morning and,
  
  2073   Fri Oct 9 01:31:56 2009 ranaConfigurationDAQtpchn mysteryDoes anyone know if this master
file is the real thing that's in use now?
  
  2075   Fri Oct 9 14:23:53 2009 Alex IvanovConfigurationDAQtpchn mystery"Yes. This master file is used."

  
  3216   Wed Jul 14 11:54:33 2010 josephbUpdateDAQDebugging Guralp and rebootsThis is regards to zero signal being reported
by the channels C1:PEM-SEIS_GUR1_X, C1:PEM-SEIS_GUR1_Y,
and C1:PEM-SEIS_GUR1_Z.
  
  3220   Wed Jul 14 16:39:06 2010 JenneUpdateDAQDebugging Guralp and reboots[Joe, Jenne]
Joe got on the phone with Alex, and
Alex's magic Alex intuition told him to ask
  
  3247   Mon Jul 19 21:47:36 2010 ranaSummaryDAQDAQ timing testSince we now have a good measurement of
the phase noise of the Rb clock
Marconi locked to the Rb clock, I wanted
  
  3299   Tue Jul 27 16:03:36 2010 ranaSummaryDAQDAQ timing test

    
        
 Untitled.png 
  3657   Wed Oct 6 00:32:01 2010 ranaSummaryDAQNDS2This is the link to the NDS2 webpage:
https://www.lsc-group.phys.uwm.edu/daswg/wiki/NetworkDataServer2
We should install this so that we
  
  3702   Tue Oct 12 23:45:55 2010 ranaConfigurationDAQNDS2I installed the NDS2 Client onto the workstations
today using the instructions that Zach put
onto the Wiki with a couple of modifications.
 cerberus.jpg 
  3939   Wed Nov 17 15:49:53 2010 ranaUpdateDAQOle Channel NamesThe following channels should be named
as below to keep in line with their names
pre-upgrade rather than use _DAQ in the name.
  
  4109   Wed Jan 5 00:23:30 2011 ranaSummaryDAQFrameBuilder fails in a new waySince Leo was trying to demo his LIGO Data
Listener code, he noticed that there was
and NDS2 issue. The NDS2 guy (JZ) noticed
  
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