40m QIL Cryo_Lab CTN SUS_Lab TCS_Lab OMC_Lab CRIME_Lab FEA ENG_Labs OptContFac Mariner WBEEShop
  40m Log, Page 63 of 341  Not logged in ELOG logo
ID Date Author Type Categoryup Subject Text Attachments
  3536   Tue Sep 7 20:44:54 2010 YoichiHowToCOMSOL TipsCOMSOL example for calculating mechanical transfer functionsI added COMSOL example files to the 40m
svn to demonstrate how to make transfer function
measurements in COMSOL.
  
  8190   Wed Feb 27 19:27:29 2013 AnnalisaHowToCOMSOL TipsMirror support Eigenfrequency I studied the eigenfrequencies of
a mirror support using COMSOL.
 
 IronSupport.pngIronSupportEigenfreq.png 
  8226   Mon Mar 4 20:03:42 2013 AnnalisaHowToCOMSOL TipsStudy of mirror mount eigenfrequencies I studied the eigenfrequencies of
a mirror mount designed with COMSOL.
I imposed fixed constraints for the
 MirrorSupport1.pngMirrorSupportEig1.pngpedestal.pngBase2.png 
  8437   Wed Apr 10 15:49:22 2013 AnnalisaConfigurationCOMSOL TipsYend table eigenfrequency simulation with COMSOL I made a Simulation with COMSOL for
the Yend table. Mainly, I tried to see how
the lower eigenmode changes with the number
 Pics_end_table.pdf 
  15650   Thu Oct 29 09:50:12 2020 anchalSummaryCalibrationPreliminary calibration measurement takenI went to 40m yesterday at around 2:30
pm and Koji showed me how to acquire lock
in different arms and for different lasers.
 PreliminaryCalibrationData.pdf 
  16128   Mon May 10 10:57:54 2021 Anchal, PacoSummaryCalibrationUsing ALS beatnote for calibration, testTest details:


We
locked both arms and opened the shutter for
Yend green laser.
After toggling
 BeatY_ITMY_CalibrationAt57Hz.pdfBeatY_ITMY_CalibrationAt43Hz.pdfBeatY_ITMY_CalibrationAt77Hz.pdf 
  16315   Tue Sep 7 18:00:54 2021 TegaSummaryCalibrationSystem Identification via line injection[paco]

This morning, I spent some time
restoring the jupyter notebook server running
 raw_timeseries.pdfdemod_signals.pdfcal_noise_asd.pdf 
  16352   Tue Sep 21 11:13:01 2021 PacoSummaryCalibrationXARM calibration noiseHere are some plots from analyzing the
C1:LSC-XARM calibration. The experiment is
done with the XARM (POX) locked, a single
 XARM_signal_asd.pdfXARM_demod_timeseries.pdfXARM_demod_asds.pdfXARM_cal_0921_timeseries.pdf 
  16353   Wed Sep 22 11:43:04 2021 ranaSummaryCalibrationXARM calibration noiseI would expect to see some lower frequency
effects. i.e. we should look at the timeseries
of the demod with the excitation on and off.
  
  16363   Tue Sep 28 16:31:52 2021 PacoSummaryCalibrationXARM OLTF (calibration) at 55.511 Hz[anchal, paco]

Here is a demonstration of the
methods leading to the single (X)arm calibration
 OLTF_Calibration_Scheme.jpgXARM_POX_Lock_Model_TF.pdfXARM_OLTF_Total_Model.pdfXARM_OLTF_55p511_Hz_timeseries.pdfGmag_55p511_Hz_ASD.pdf 
  16369   Thu Sep 30 18:04:31 2021 PacoSummaryCalibrationXARM OLTF (calibration) with three lines[anchal, paco]

We repeated the same procedure
as before, but with 3 different lines at
 XARM_OLTF_Model_and_Meas.pdfGmag_ASD_nb_withTRX.pdf 
  16373   Mon Oct 4 15:50:31 2021 HangUpdateCalibrationFisher matrix estimation on XARM parameters[Anchal, Hang]

What: Anchal and I measured the
XARM OLTF last Thursday.
 tf_meas.pdffisher_est_vs_data.pdfPxx_evol.pdffisher_evol.pdf 
  16399   Wed Oct 13 15:36:38 2021 HangUpdateCalibrationXARM OLTFWe did a few quick XARM oltf measurements.
We excited C1:LSC-ETMX_EXC with a broadband
white noise upto 4 kHz. The timestamps for
 Screenshot_2021-10-13_15-32-16.png 
  16957   Tue Jun 28 17:07:47 2022 AnchalUpdateCalibrationAdded Beatnote channels in demodulation of c1calI added today demodulation of C1:LSC-BEATX/Y_FINE_I/Q
in the c1cal demodulation where different
degrees of freedom can be dithered. For McCal
  
  17010   Mon Jul 18 04:42:54 2022 AnchalUpdateCalibrationError propagation to astrophysical parameters from detector calibration uncertaintyWe can calculate how much detector calibration
uncertainty affects the estimation of astrophysical
parameters using the following method:
 BNSparamsErrorwrtfdError-merged.pdfBBHparamsErrorwrtfdError-merged.pdfBNSparamsEPSwrtCalError.pdfBBHparamsEPSwrtCalError.pdf 
  17011   Mon Jul 18 15:17:51 2022 HangUpdateCalibrationError propagation to astrophysical parameters from detector calibration uncertainty1. In the error propogation equation, it
should be \Delta \Theta = -H^{-1} M \Delta
\Lambda, instead of the fractional error. 
  
  17017   Tue Jul 19 07:34:46 2022 AnchalUpdateCalibrationError propagation to astrophysical parameters from detector calibration uncertaintyAddressing the comments as numbered:


Yeah, that's correct,
that equation normally 
 BNSparamsErrorwrtfdError.pdfBBHparamsErrorwrtfdError.pdfBNSparamsEPSwrtCalError.pdfBBHparamsEPSwrtCalError.pdf 
  17029   Sun Jul 24 08:56:01 2022 HangUpdateCalibrationError propagation to astrophysical parameters from detector calibration uncertaintySorry I forgot to put tc & phic in
the example. 

I modified astroFisherLib.py
  
  10436   Thu Aug 28 11:02:53 2014 SteveUpdateCalibration-RepairSR785 repairSN 46,795 of 2003 is back.  08281401.PDF 
  11641   Thu Sep 24 17:06:14 2015 ericqUpdateCalibration-RepairC1CAL LockinsJust a quick note for now: I've repopulated
C1CAL with a limited set of lockin oscillators/demodulators,
informed by the aLIGO common LSC model. Screens
  
  12040   Mon Mar 21 14:29:32 2016 SteveUpdateCalibration-Repair1W Innolight laser repair diagnoses 




  
  12045   Thu Mar 24 07:56:09 2016 SteveUpdateCalibration-RepairNO Noise Eater for 1W Innolight1W Innolight is NOT getting Noise Eater
as it was decided yesterday at the 40m meeting.
Corrected 3-25-2016
  
  12070   Mon Apr 11 17:03:41 2016 SteveUpdateCalibration-Repair1W Innolight repair completedThe laser is back. Test report is in the
40m wiki as New Pump Diode Mephisto 1000
  
  13456   Tue Nov 28 17:27:57 2017 awadeBureaucracyCalibration-RepairSR560 return, still not chargingI brought a bunch of SR560s over for repair
from Bridge labs. This unit, picture attached
(SN 49698), appears to still not be
 96B6ABE6-CC5C-4636-902A-2E5DF553653D.jpegimage.jpg 
  14759   Mon Jul 15 03:30:47 2019 KruthiUpdateCalibration-RepairWhite paper as a Lambertian scattererI made some rough measurements, using the
setup I had used for CCD calibration, to
get an idea of how good of a Lambertian scatterer
 BRDF_paper.png 
  14804   Wed Jul 24 04:20:35 2019 KruthiUpdateCalibration-RepairMC2 pitch and yaw calibrationSummary:  I calibrated MC2
pitch and yaw offsets to spot position in
mm. Here's what I did:
 Pitchyaw_calibration.png 
  15510   Sat Aug 8 07:36:52 2020 Sanika KhadkikarConfigurationCalibration-RepairBS Seismometer - Multi-channel calibrationSummary : 

I have been working on analyzing
 BS_X-EY_X.pngBS_Y-EY_Y.pngBS_Z-EY_Z.pngtimeseries.png 
  227   Tue Jan 8 15:20:17 2008 PkpUpdateCamerasGigE update[Tobin , Pinkesh]

Finally we got the camera doing something
  
  234   Thu Jan 10 13:45:52 2008 PkpUpdateCamerasGLIBC ErrorSo, I have tried to compile the camera files
which are in /cvs/cds/caltech/target/Prosilica/examples
for the past 2 days now and have been unable
  
  236   Fri Jan 11 17:01:51 2008 pkpUpdateCamerasGigE again So, here I detail all the efforts on the GigE
so far 
  
  245   Thu Jan 17 15:11:13 2008 josephbUpdateCamerasWorking on Malfalda1) I can statically compile the ListCamera
code (which basically just goes out and finds
what cameras are connected to the network)
  
  266   Fri Jan 25 11:38:16 2008 josephbConfigurationCamerasWorking GiGE video on Linux - sort of1)I have been able to compile the SampleViewer
program which can stream the video from the
Prosilica 750C camera.  This was accomplished
 snap.tiff 
  267   Fri Jan 25 13:36:13 2008 josephbConfigurationCamerasWorking GiGE video on MafaldaFinally got the GiGE camera sample viewer
video running on Mafalda by updating to the
latest API (version 1.16 from Dec 16, 2007)
  
  289   Thu Jan 31 16:53:41 2008 josephbConfigurationCamerasImproving camera user interfaceThere's a new and improved version of Snap
program at the moment people are free to
play with.
 Camera_exp_15000.tiffCamera_exp_3000.tiff 
  292   Fri Feb 1 15:04:54 2008 josephbConfigurationCamerasSnap with looping functionality availableNew GiGE camera code is available in /cvs/cds/caltech/target/Prosilica/40mCode/.
 Currently only runs on Mafalda.
  
  297   Tue Feb 5 15:32:29 2008 josephbConfigurationCamerasPMC and the GigE CameraThe PMC transmission video camera has been
removed and replaced with the GigE GC750
camera for the moment.
 pmc_trans.jpg 
  300   Wed Feb 6 16:50:47 2008 josephbConfigurationCamerasRegions of Interest and max frame rateThe Snap code has once again been modified
such that setting the -l option to 0 will
take images as fast as possible.  Also, the
  
  301   Wed Feb 6 19:39:11 2008 ranaConfigurationCamerasRegions of Interest and max frame rateWe really need to look into making the 40m
CDS network have an all GigE backbone so
that we can have cooler cameras as well as
  
  378   Fri Mar 14 12:06:29 2008 josephbConfigurationCamerasGC750 looking at ETMX while lockedThe GC750 (CMOS) is currently looking at the
front of ETMX.  Unfortunately, its being
routed through a 10Mbit connection (which
 ETMX_zoom_exp_10000_750.tiff 
  379   Fri Mar 14 14:59:51 2008 josephbConfigurationCamerasComparison between GC650 (CCD) and GC750 (CMOS) looking at ETMXAttached are images taken of ETMX while locked.

The first two are 300,000 microsecond exposure
 ETMX_z2_exp_300000_650.tiffETMX_z2_exp_300000_750.tiffETMX_z2_exp_30000_650.tiffETMX_z2_exp_30000_750.tiff 
  434   Tue Apr 22 08:34:22 2008 josephbConfigurationCamerasCurrent Network DiagramThe attached network diagram has also been
added to the 40m Wiki at http://lhocds.ligo-wa.caltech.edu:8000/40m/Image_Processing_with_GigE_Cameras
 Network.pdf 
  471   Thu May 8 16:40:36 2008 josephbConfigurationCamerasGige Camera currently on PSL tableAndrey and myself were working on the PSL
table today, using a pickoff of a pickoff
of the main beam (adding a microscope slide
  
  481   Thu May 15 16:24:18 2008 josephbSummaryCameras The GC750 camera is currently looking at a
very small pickoff of the PSL output (transmission
of a Y1-1037-45-S mirror).  The plan is to
  
  482   Fri May 16 14:38:50 2008 josephbSummaryCamerasTwo cameras setupI've changed the pickoff setup from yesterday
for the GigE cameras to include a 33% beam
splitter (first one I could find).  The reflection
  
  506   Fri May 30 12:03:08 2008 josephb, AndreyConfigurationCamerasHead to head comparison of camerasAndrey and myself - Joseph B. - have examined
the output of the GC650 (CCD) and GC750 (CMOS)
prosilica cameras.  We did several live motion
 Waveform_Reconstruction_May30-2008.pdf 
  511   Mon Jun 2 12:20:35 2008 josephbBureaucracyCamerasBeam scan has movedThe beamscan has been moved from the Rana
lab back over to the 40m, to be used to calibrate
the Prosilica cameras.
  
  512   Tue Jun 3 02:15:29 2008 AndreySummaryCamerasFitting results
There have been a lot of work going on related
to the processing of images captured by the
 May30-GC650.pdfMay30-GC750.pdfJune02-GC650.pdfJune02-GC750.pdf 
  515   Tue Jun 3 12:33:36 2008 AndreyUpdateCamerasAndrey, Josephb
Continuing our work with cameras,
  
  517   Wed Jun 4 13:46:42 2008 josephbConfigurationCamerasChanging incident angle imagesAttached are images from the GC650 and GC750
when the incident angle was varied from 0
tilt (normal incidence) to 5,10, and 20 degrees.
 GC650_0dg_5dg.pdfGC650_10dg_20dg.pdfGC750_0dg_5dg.pdfGC750_10dg_20dg.pdf 
  519   Wed Jun 4 16:57:12 2008 josephbConfigurationCamerasDark images from cameras (electronics noise measurement)The attached pdfs are 1 second and 1 millisecond
long integrations from the GC650 and GC750
cameras with a cap in place - i.e. no light.
 GC650_1sec_dark.pdfGC650_1msec_dark.pdfGC750_1sec_dark.pdfGC750_1msec_dark.pdfGC650_1sec_dark_zoom.pdf 
ELOG V3.1.3-