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ID Date Author Type Category Subjectup Text Attachments
  97   Wed Sep 29 16:49:36 2010 AidanLaserHartmann sensorCross-sampling experiment power budgetI've been setting up the cross-sampling
test of the Hartmann sensor, Right now I'm
waiting on a 50/50 BS so I'm improvising
 00001.jpg 
  96   Tue Sep 28 17:53:40 2010 AidanLaserHartmann sensorCrude alignment of cross-sampling measurementI've set up a crude alignment of the cross-sampling
system (optical layout to come). This was
just a sanity check to make sure that the
 2010_09_28-HWS_cross_sample_expt_crude_alignment_01.pdf 
  170   Mon Jun 18 23:42:39 2012 Aditi MittalMiscLIGO 3GCryogenic Shielding -Read about blue team design for
maximum power budget.
-Read third generation talks to get
  
  119   Tue Mar 1 17:05:45 2011 AidanElectronicsHartmann sensorDalsa 1M60 current drawSteve and I measured the current drawn
by the Dalsa 1M60 by connecting it to the
BK Precision 1735 lab power supply that display
  
  70   Fri Jul 23 10:33:08 2010 AidanComputingHartmann sensorDalsa camera ADC 8th digitizer error I plotted a histogram of the total intensity
of the Hartmann sensor when illuminated and
found that the 128 count problem extends
 histogram_of_dalsa_intensity.pdf 
  73   Fri Jul 23 19:52:49 2010 AidanComputingHartmann sensorDalsa camera ADC 8th digitizer error I've attached an image that shows the locations
of those pixels that record a number of counts
= (2*n-1)*128. 
 image-location-of-excess_pixel_count_pixels.jpg 
  151   Mon May 30 10:53:00 2011 AidanLaserHartmann sensorDefocus vs time I've had the output from a fiber
projected about 400mm onto the Hartmann sensor
for around 5 days now. (The divergence angle
 HWS_defocus_vs_temperature.pdf 
  240   Mon Aug 12 21:15:12 2019 Edita BytyqiElectronics Determining heater/reflector focusI took images of the heat pattern projected
on a piece of paper produced by the semi-circle
reflector. I used 108V to drive current throught
 20190812_151316.jpg20190812_151258.jpg 
  17   Mon Apr 12 08:55:37 2010 AidanComputingHartmann sensorEDT frame grabber is here The EDT PCIe4 DV C-Link frame grabber
arrived this morning. There is a CD of drivers
and software with it that I'll back up to
  
  103   Tue Nov 30 11:03:19 2010 AidanComputingFrame GrabberEDT frame grabber works under UbuntuThe new machine in the TCS lab is running
Ubuntu. I installed the frame-grabber into
it and, after loading the configuration file
  
  28   Tue May 4 10:30:07 2010 AidanComputingHartmann sensorEPICS and MEDM screen for Hartmann sensorI added the Dalsa 1M60 temperature measurements
to EPICS. The break down is as follows:
 Screenshot-C4HWS_medm_21.adl_(edited).pngScreenshot-StripTool_Graph_Window.pngHWS.dbHWS.cmdread_dalsa_temperature_write_to_epics.m 
  32   Thu May 6 10:34:38 2010 AidanComputingHartmann sensorEPICS and MEDM screen for Hartmann sensor - part 2I added the camera parameters to EPICS
and the MEDM screen. These are available
as channels now in EPICS and eventually there
 dalsa_to_epics.pyGetCameraParameters.pyHWS.dbC4TCS.ini 
  25   Mon May 3 17:42:20 2010 AidanComputingEPICSEPICS install by AlexAlex Ivanov came in on Friday and demonstrated
his EPICS kung-fu. His EPICS knig-fu is strong.
We fixed the IP address of the Hartmann
 history.txthistory_root.txt 
  83   Fri Jul 30 11:01:31 2010 AidanComputingHartmann sensorEPICS softIoc alias I added an alias HWSIoc to
controls which can be used to
start the HWS EPICS softIoc.
  
  91   Tue Aug 17 22:34:14 2010 ranaMiscGeneralETM temperature after a 1W stepThis attachment is a Shockwave Flash animation
of the iLIGO ETM getting a 1 W beam with
a 3.5 cm radius getting fully absorbed onto
 etmt.swf 
  120   Thu Mar 3 07:30:18 2011 WonComputingHartmann sensorEffect of high pixel count on rmsWe have been investigating how pixel count
is related to the centroid displacements
by taking several sets of image frames with
 11x 
  116   Tue Mar 1 10:47:18 2011 AidanMiscHartmann sensorElectron to Counts conversion efficiencyUsing some of the old data from James (attached
below), I calculated the CCD conversion efficiency
(CE) from electrons to bits (Counts).
  
  94   Mon Sep 13 18:24:52 2010 AidanLaserHartmann sensorEnclosure for the HWSI've assembled the box Mindy ordered from
Newport that will house the Hartmann sensor.
It's mainly to reduce ambient light, air
 00001.jpg00002.jpg00003.jpg00005.jpg 
  242   Tue Sep 3 10:49:57 2019 AidanLab InfrastructureGeneralExhaust duct added for new bake area in TCS labFacilities came in on Friday and teed off
a new duct to provide exhaust for the proposed
new vacuum bake area in the TCS Lab. Photos
 IMG_1627.jpgIMG_1629.jpgIMG_1628.jpgIMG_1626.jpg 
  202   Thu Nov 9 14:18:56 2017 AidanComputingDAQFB4 ip address has changedWe've had trouble logging into FB4.
I access the computer directly in the AWC
lab and found that the IP address had changed
  
  213   Wed May 30 18:59:49 2018 awadeComputingDAQFB4 ip address has changedMaybe you've resolved this now. I moved
the DHCP allocation to 10.0.1.160 and
above around that time because a bunch of
  
  241   Fri Aug 16 17:05:14 2019 Edita BytyqiElectronics FLIR Images of new reflector focusing heatWe got 11 new semi-circle cut reflectors
of radius ~3.6 cm. I glued a screw to the
back of one reflector using the same epoxy
  
  124   Tue Mar 8 18:57:50 2011 AidanThings to BuyDelivery NoteFiber optics cable and Bosch Fastener   deliveries_2011-03-08.pdf 
  18   Mon Apr 12 17:25:01 2010 AidanElectronicsHartmann sensorFiber-Camera Link demonstration I installed the EDT PCIe4 DV C-Link
frame grabber in a spare Windows XP PC and
connected the Dalsa 1M60 camera directly
 hartmann_sensor.JPGFiber_Camera_Link_1.jpgFiber_Camera_Link_3.jpg 
  106   Fri Feb 18 13:26:23 2011 AidanThings to BuyDelivery NoteFirst parts of Bosch framing have arrived from ValinThe first pieces of the Bosch framing have
arrived from Valin Corporation. These are
just small pieces such as the fasteners and
 Packing_List_01.pdf 
  108   Wed Feb 23 18:04:38 2011 AidanThings to BuyDelivery NoteFirst parts of Bosch framing have arrived from Valin

    

       
            
 Packing_List_02.pdf 
  142   Mon Apr 25 16:28:27 2011 Aidan, JoeComputingNetwork architectureFixed problem network drive fb1:/cvs on Ubuntu & CentOS machinesWith Joe's help we fixed the failure of
princess_sparkle to mount the
fb1:/cvs directory when relying
  
  100   Thu Nov 4 13:31:19 2010 Won KimComputingHartmann sensorFrame Grabber SDK installation Appended
below is the step by step procedure that
  
  206   Mon Feb 5 15:08:06 2018 AidanComputingDAQFrame builder clock is totally wrongThe framebuilder on FB4 thinks the current
time is 26-Jan-2018 6:18AM UTC. The date
command on FB4 yields the correct date and
  
  115   Mon Feb 28 17:56:32 2011 AidanComputingHartmann sensorGot HWS code running and interface to EPICSHere are the notes from today's efforts:
 
 
  
  150   Thu May 26 11:56:46 2011 AidanElectronicsLaserGreen Laser Pointer beam profileThis measurement was made with the Thorlabs
DCC1545M-GL camera with an RG850 3mm long-pass
filter over the CCD.
 green_laser_pointer.bmpgreen_laser_pointer.pdfScreen_shot_2011-05-26_at_12.28.20_PM.png 
  123   Tue Mar 8 18:48:00 2011 AidanComputingHartmann sensorHWS code is running and recording centroidsThe Hartmann sensor is running continuously
and is now recording data to file. The formatting
has changed slightly with the data now stored
  
  208   Fri May 11 12:32:21 2018 AidanLaserHartmann sensorHWS green LED fiber launcher [Aidan, Marie]

We tested the output of the fiber
launcher D1800125-v3. We were using a 6mm
 LED_test_01_20180511.pdf 
  209   Fri May 11 16:18:47 2018 AidanLaserHartmann sensorHWS green LED fiber launcherAnd here's the output of the fiber
launcher when I fixed it at 313mm from the
camera, attached an iris to the front and
 LED_test_02_20180511.pdf 
  210   Wed May 16 16:47:29 2018 AidanLaserHartmann sensorHWS green LED fiber launcher - D1800125-v5_SN01Here is the output from D1800125-v5_SN01.




 HWS_LED_D1800125_V5_sn01.pdfHWS_LED_D1800125_V5_sn01.mHWS_D1800125-v5_sn01_characterize_20180516.tar 
  211   Fri May 18 16:32:37 2018 AidanLaserHartmann sensorHWS green LED fiber launcher - D1800125-v5_SN01Title was wrong - this is actually config
[12,2,4,125]

  
  186   Mon Jun 5 16:41:59 2017 AidanLaserHartmann sensorHWS long term measurement results.The data from the long-term measurement
of the HWS is presented here. The beam envelope
moves by, at most, about 0.3 pixels, or around
 HWS_envelope_long_term.pdfHWS_optical_parameters_long_term.pdfHWS_envelope_long_term_mm.pdfIMG_9836.JPG 
  114   Mon Feb 28 17:33:07 2011 AidanComputingHartmann sensorHartmann Seidel abberation channels in frame builderUsing the same methods as before, see below,
I've added some Hartmann sensor EPICS channels
to the frames.
  
  69   Thu Jul 22 21:46:55 2010 James KunertMiscHartmann sensorHartmann Sensor Thermal Defocus Measurement Noise & Ambient Light EffectsAs discussed during the teleconference,
a series of experiments have been conducted
which attempt to measure the thermally induced
 72210b_ambient.png 
  113   Thu Feb 24 14:23:58 2011 AidanLab InfrastructureHartmann sensorHartmann Sensor box cut down to size I reduced the height of the Hartmann
sensor box. This is what it looks like now:
 
 P1000109.jpgP1000110.jpgP1000111.jpgP1000113.jpg 
  92   Wed Aug 18 18:38:11 2010 AidanComputingHartmann sensorHartmann sensor code I downloaded and tested revision
47 of the Adelaide Hartmann sensor code from
the SVN (https://trac.ligo.caltech.edu/Hartmann_Sensor/browser/users/won/HS_OO?rev=47).
 test_HS_Classes.mHS_Image.mHS_Centroids.mHWS_code_output.pngHWS_input_image.png 
  121   Tue Mar 8 11:30:26 2011 AidanComputingHartmann sensorHartmann sensor code changes and NTP serverI've made the following changes to the
Hartmann sensor code and to the machine running
the HWS.
  
  44   Wed May 26 14:58:04 2010 AidanMiscHartmann sensorHartmann sensor cooling fins added14:55 -  Mindy stopped by with the
copper heater spreaders and the cooling fins
for the Hartmann sensor. We've set them all
 HWS_CONFIG1.jpg 
  48   Thu May 27 17:49:02 2010 AidanElectronicsHartmann sensorHartmann sensor cooling fins added - base piece added Back to Configuration 1 again - this
time the fins were bolted very securely to
the camera.
 HWS_CONFIG1-tight.jpg 
  45   Thu May 27 08:25:37 2010 AidanElectronicsHartmann sensorHartmann sensor cooling fins added - base piece removed 8:10AM - I removed the base plate
from the Hartmann sensor. I want to know
what steady-state temperature the HWS achieves
 HWS_CONFIG2.jpg 
  152   Mon May 30 20:11:27 2011 AidanLaserHartmann sensorHartmann sensor lever arm calibration I ran through the procedure to calibrate
the lever arm of the Hartmann sensor. The
beam from a 632.8nm HeNe laser was expanded
  
  137   Sun Apr 17 21:55:51 2011 AidanLaserHartmann sensorHartmann sensor prism/displacement testI've set up an experiment to test the HWS
intensity distribution displacement measurement
code. Basically the beam from a SLED is just
 HWS_prims.jpg 
  47   Thu May 27 15:42:06 2010 AidanElectronicsHartmann sensorHartmann sensor with just the base pieceI switched in just the base piece of the
Hartmann sensor. The cooling fins are removed.
I bolted the camera securely to the base
 HWS_CONFIG4.jpg 
  29   Tue May 4 13:35:13 2010 AidanComputingHartmann sensorHartmann temperature channels in frame builder I've added the digitizer and sensor
board temperature readings from the HWS to
the frames. This was done in the following
  
  78   Mon Jul 26 18:47:12 2010 James KMiscHartmann sensorHex Grid Analysis Errors and Thermal Defocus NoiseMy previous eLog details how the noise
in Hartmann Sensor defocus measurements appears
to vary with ambient light. New troubleshooting
 centerror.PNGcentinit.pnghexgrid.png72010a.png72010a_nohex.PNG 
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