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New entries since:Wed Dec 31 16:00:00 1969
ID Date Author Typedown Category Subject Text Attachments
  8853   Mon Jul 15 17:59:31 2013 gautamConfigurationendtable upgradeDAC at 1Y4- Power Spectrum -6.4kHz bandwidth

    

       
            
 DAC-6.4_kHz_BW_PSD.pdf 
  8857   Tue Jul 16 14:51:09 2013 gautamConfigurationendtable upgradeAI Board-D000186-Modified notches I tried shifting the notch frequencies
on the D000186-revision D board given to
me by Koji. The existing notches were at
 D000186_Frequency_Response.pdf 
  8859   Tue Jul 16 17:02:41 2013 Alex ColeConfigurationElectronicsAS Table Additions [Eric, Alex]
We added our reference photodetector
(Newport 1611, REF DET) to the southern edge
 photo_1_(1).JPGphoto_2_(2).JPG 
  8862   Wed Jul 17 11:13:36 2013 Alex ColeConfigurationElectronicsAS Table Additions[Eric, Alex]
For the RFPD frequency response project,
we routed the fiber that will connect our
 photo_(1).JPG 
  8863   Wed Jul 17 16:15:42 2013 Alex ColeConfigurationElectronicsAS Table Additions[Eric, Alex]
We decided that the POY Table would
be a better home for our REF DET (Newport
 photo_1_(3).JPGphoto_2_(3).JPGphoto_3.JPG 
  8873   Thu Jul 18 19:09:08 2013 gautamConfigurationendtable upgradeQPD Calibration for PZT CalibrationSummary 
I have been working on setting up
a QPD which can eventually be used to calibrate
 QPD-XCalib.pdfQPD-YCalib.pdfError_Function_Fitting.zip 
  8874   Thu Jul 18 20:20:52 2013 gautamConfigurationendtable upgradeFirst mirror glued to PZT and mounted in modified mounts 
 Yesterday,
I mounted the first PZT in one of the modified
 Piezo-mirror.jpg 
  8875   Thu Jul 18 21:12:58 2013 gautamConfigurationendtable upgradeAI Board-D000186-All channels modified 
 I carried some further modifications
and tests to the AI Board. Details and observations
 AI_Board_Output.jpg 
  8877   Thu Jul 18 23:34:40 2013 gautamConfigurationendtable upgradeCoarse adjustment of PZT axes orientation in mount I have
managed to orient the PZT in the mount such
that its axes are approximately aligned with
 PZT_out_waveform.jpg 
  8883   Fri Jul 19 22:51:40 2013 gautamConfigurationendtable upgradeSecond mirror glued to PZT and mounted  
I
 Piezo-mirror_2.JPG 
  8884   Fri Jul 19 23:35:31 2013 gautamConfigurationendtable upgradePreliminary Calibration of PZT I recalibrated
the QPD today as I had shifted its position
a little. I then identified the linear range
 QPD-XCalib.pdfQPD-YCalib.pdfPiezo_Yaw_Calib-in_QPD_linear_range-Pitch_tilt.pdfPiezo_Yaw_Calib-in_QPD_linear_range-Yaw_tilt.pdf 
  8912   Tue Jul 23 20:41:40 2013 gautamConfigurationendtable upgradeFull range calibration and installation of PZT-mounted mirrors Given
that the green beam is to be used as the
 M1_Pitch_calib.pdfM1_Yaw_calib.pdfM2_Pitch_calib.pdfM2_Yaw_calib.pdfPI_S330.20L.pdf 
  8932   Mon Jul 29 13:39:25 2013 gautamConfigurationendtable upgradePZT Driver Board-further changes 
 
I have
 D980323-C-modified.pdfD980323-C-modified-pg2.pdf 
  8935   Mon Jul 29 21:57:45 2013 gautamConfigurationendtable upgradeHardware installed at 1X9 The following hardware   
  8942   Tue Jul 30 19:40:47 2013 gautamConfigurationendtable upgradeDAC-PZT Driver Board Output Signal Chain Tested 
 [Alex, Gautam]
  
  8943   Tue Jul 30 19:44:05 2013 gautamConfigurationendtable upgradeSecond mirror glued to PZT and mounted  
 I have
  
  8967   Mon Aug 5 18:48:44 2013 gautamConfigurationendtable upgradeFull range calibration of PZT mounted mirrors for Y-endtable I
had prepared two more PZT mounted mirrors
for the Y-end some time back. These are:
 2-inch-CVI-Yawcalib.pdf2-inch-CVI-Pitchcalib.pdf1-inch-Laseroptik-Yawcalib.pdf1-inch-Laseroptik-Pitchcalib.pdf 
  8971   Tue Aug 6 12:43:23 2013 Alex ColeConfigurationElectronicsAS Table and Rack 1Y1 AdditionsFor the photodetector frequency response
project, I finished the construction of our
baluns chassis and mounted it in rack 1Y1
 photo_1_(5).JPGphoto_2_(5).JPG 
  8979   Wed Aug 7 15:51:53 2013 Alex ColeConfigurationElectronicsRF Switch ChangeFor the photodetector frequency response
project, our new RF Switch Chassis (NI pxie-1071)
arrived today. I took the switches out of
 photo_(2).JPG 
  9006   Tue Aug 13 13:30:41 2013 Alex ColeConfigurationElectronicsCable Routing I routed cables (RG405 SMA-SMA) from
several demodulator boards in rack 1Y2 to
the RF Switch in rack 1Y1 using the overhead
 photo_(6).JPG 
  9062   Mon Aug 26 18:55:18 2013 JenneConfigurationElectronicsputting together a 110 MHz LSC demod board for ASI have modified one of the spare demod
boards that was sitting above the electronics
bench (the one which was unlabeled - the
 AS110_demod_board_modifications.pdf 
  9067   Mon Aug 26 20:13:17 2013 ranaConfigurationElectronicsputting together a 110 MHz LSC demod board for AS

    

       
            
  
  9069   Tue Aug 27 15:31:48 2013 JenneConfigurationElectronicsputting together a 110 MHz LSC demod board for AS

    

       
            
  
  9071   Tue Aug 27 17:32:52 2013 JenneConfigurationElectronicsputting together a 110 MHz LSC demod board for ASI measured the phase split between the
I and Q signals of my AS110 board. 
To do so, I plugged the board into an empty
  
  9072   Tue Aug 27 18:21:35 2013 JenneConfigurationElectronics110 MHz LO optionsAs I see it, we have a few options for
getting the 110 MHz LO to both the POP110
and AS110 demod boards.  
  
  9073   Tue Aug 27 18:58:52 2013 KojiConfigurationElectronics110 MHz LO options- Do we have an appropriate amplifier?
- True challenge could be to find
a feedthrough for the new port. (or to find
  
  9074   Tue Aug 27 19:34:36 2013 JamieConfigurationCDSfront end IPC configurationSo the IPC situation on the front end network
is not so great right now.  For various
no-longer-valid reasons, c1lsc had no RFM
 hosts.png 
  9075   Tue Aug 27 19:50:06 2013 JamieConfigurationComputer Scripts / Programscdsutils checked out into /opt/rtcdsI have checked out the new cdsutils
repository at:

/opt/rtcds/cdsutils/release

This
  
  9076   Tue Aug 27 20:43:34 2013 KojiConfigurationCDSfront end IPC configurationThe reason we had the PCIe/RFM system was
to test this mixed configuration in prior
to the actual implementation at the sites.
  
  9086   Wed Aug 28 19:47:28 2013 jamieConfigurationCDSfront end IPC configuration

    

       
            
  
  9087   Wed Aug 28 23:09:55 2013 jamieConfigurationCDScode to generate host IPC graph   hosts.png40m-ipcs-graph.py 
  9100   Tue Sep 3 21:10:36 2013 JenneConfigurationElectronicsputting together a 110 MHz LSC demod board for AS

    

       
            
  
  9132   Mon Sep 16 15:29:50 2013 JamieConfigurationComputer Scripts / Programscdsutils checked out into /opt/rtcdsWe now have a proper install of cdsutils:

 controls@rossa:~ 0$ cdsutils
 usage:
cdsutils <cmd> <args>

 Advanced
  
  9133   Mon Sep 16 19:41:01 2013 ranaConfigurationComputer Scripts / Programscdsutils checked out into /opt/rtcds controls@rosalba:~
0$ cdsutils
  
  9135   Tue Sep 17 17:55:42 2013 Jamie.ConfigurationComputer Scripts / Programspyepics configured

    

       
            
  
  9150   Sun Sep 22 21:03:15 2013 ranaConfigurationSUSTuned bounce and roll mode of ETMY suspension Today I noticed that there was a
lot of noise at the Bounce and Roll eigenfrequencies
for ETMY. I found that the bandstop filter
 etmy-error.pngnotches.pdf 
  9211   Sun Oct 6 23:50:14 2013 ranaConfigurationSUSMC filters adjusted
    Found the low pass filters OFF
in a couple of the MC SUS damping loops.
This allows injection of OSEM noise all the
  
  9309   Tue Oct 29 18:14:52 2013 JamieConfigurationComputer Scripts / Programsfixing python-matplotlib from LSCSOFTJenne just discovered an issue with the
python-matplotlib package that I knew was
coming but forgot about.
  
  9310   Tue Oct 29 18:54:36 2013 JamieConfigurationComputer Scripts / Programsfixing python-matplotlib from LSCSOFT

    

       
            
  
  9328   Fri Nov 1 18:59:41 2013 EvanConfigurationISSAOM cabling[Rana, Nic, Evan]
We did some work today on getting
the AOM back up and running so that we can
 aom.jpgaom_driver.jpgaom_driver_power.jpg20131101_170120.jpg 
  9329   Fri Nov 1 19:09:01 2013 rana, evanConfigurationPSLPMC reflected beam nonsense While looking at the PMC REFL beam
for the AOM diffracted beam, we noticed that
although only one beam exists between the
  
  9377   Wed Nov 13 18:37:19 2013 ranaConfigurationElectronicsDAC available in c1lsc IO chassis for DAFI    
  9381   Thu Nov 14 00:33:37 2013 ranaConfigurationPSLPMC LO is dying...Back in 2009, Jenne replaced the PMC board
mixer with a Level 13 one. Today I noticed
that the LO level on the PMC screen was showing
 Untitled.png 
  9497   Thu Dec 19 21:16:16 2013 KojiConfigurationGeneralnetgpibdata is working again nowNow
netgpibdata is working again.
Usage:
  
  9502   Fri Dec 20 10:08:43 2013 JamieConfigurationGeneralnetgpibdata is working again now


   
        
            
  
  9509   Sat Dec 21 01:54:04 2013 KojiConfigurationLSCLSC Whitening for the DCPDs/CM servo replacedThe previous LSC whitening filters for
the DCPDs were in an unknown state (although
the transfer functions were actually measured
  
  9564   Wed Jan 22 09:05:42 2014 GabrieleConfigurationLSCREFL11 back Yesterday night I plugged back the
REFL11 RF cable into the corresponding demodulation
board.
  
  9761   Fri Mar 28 23:28:13 2014 KojiConfigurationGeneralNTP setting on nodus[Koji Rana]
We are looking at NTP settings. I
looked at nodus.
  
  9762   Sat Mar 29 00:11:39 2014 KojiConfigurationGeneralNTP setting on nodusFB: /etc/ntp.conf was updated as
below such that it refers nodus and also
caltech server when nodus is not available
  
  9808   Mon Apr 14 17:59:05 2014 JenneConfigurationPEMNew T-240 cableAs payment for borrowing 2 of our seismometers,
Zach has made us a new Trillium cable, to
go from the granite station to the readout
  
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