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ID Date Author Type Category Subjectup Text Attachments
  243   Wed Oct 30 12:13:14 2019 JonMiscDelivery NoteNew lab hardwareIan and I moved some new hardware into
the lab, shown in the below photos. It is
from the shipment of loaned
 IMG_3782.jpgIMG_3783.jpgIMG_3784.jpgIMG_3785.jpg 
  102   Tue Nov 30 11:01:19 2010 AidanComputingGeneralNew workstation added in TCS Lab. New Static IPI added a workstation at 10.0.1.26 in the
TCS lab.
  
  133   Mon Apr 4 13:13:23 2011 AidanThings to BuyDelivery NoteNewfocus 5102 mirrors and Firewire extension cable have arrived See attached delivery note ...  receipt_mirrors.pdf 
  19   Thu Apr 15 01:47:47 2010 Won KimComputingHartmann sensorNotes on installing EDT PCIe4 DV frame grabber* EDT PCIe4 DV frame grabber: installation
notes for linux system 
  
  139   Mon Apr 18 15:06:53 2011 AidanThings to BuyHartmann sensorOrdered 2" optics from Newport Given that the HWS requires several
2" optics to handle the big beam size,
I've ordered the following items from Newport:
  
  34   Thu May 6 21:32:26 2010 Won KimComputingHartmann sensorPeak detection and centroiding code 
 
 detect_peaks_uml.m 
  35   Tue May 11 10:32:00 2010 AidanComputingHartmann sensorPeak detection and centroiding code - reviewThis looks really efficient! However, I
think there's a systematic error in the calculation.
I tested it on some simulated data and it
 test_centroid_code.m 
  239   Fri Aug 9 20:33:11 2019 JonElectronicsRing HeaterPower-regulated heater ready to useDespite some considerable time spent,
I was not able to get the Omega SCR controllers
working. The first unit definitely arrived
 IMG_3576.jpgIMG_3577.jpg 
  132   Fri Apr 1 09:51:45 2011 AidanComputingHartmann sensorPrism measurement I analyzed the results from the prism
experiment. The time series and spectra of
the prism are attached.
 Hartmann_Sensor_prism_measurement_2011-03-31.pdfHartmann_Sensor_Prism_measurement_times_series_2011-03-31.pdf 
  129   Wed Mar 30 12:55:54 2011 AidanLaserHartmann sensorPrism modulation experimentI've set up a quick experiment to modulate
the angle of the Hartmann sensor probe beam
at 10mHz and to monitor the measured prism.
  
  130   Thu Mar 31 11:27:02 2011 AidanLaserHartmann sensorPrism modulation experimentI changed the drive amplitude on the function
generator to 0.05Vpp and have measured the
angle of deflection by bouncing a laser off
  
  31   Wed May 5 18:45:51 2010 AidanComputingHartmann sensorPython code to interface the Dalsa1M60 and export the temperature to EPICSPython script
I wrote a Python script, ~/scripts/dalsa_to_epics.py
 dalsa_to_epics.pyVerifyTemperature.pydalsa_1m60.cfg 
  154   Fri Sep 2 14:41:48 2011 AidanComputingHartmann sensorQFLD-950-3S long term test finishedI ran a test of the HWS with the QFLD-950-3S
for 5 days. The test was terminated as we
need to disconnect all the cabling and tidy
  
  238   Tue Aug 6 19:22:28 2019 JonElectronicsComputingQIL NFS server set upI've started building the NFS server
for the QIL cymac. It's sitting on the
workbench in the TCS lab next to the rack.
  
  40   Thu May 20 10:44:13 2010 AidanElectronicsSLEDQPhotonics 980nm source powerdV = 0.385V
Responsivity= 0.65A/W
Transimpedance = 1.5E4 V/A
  
  204   Thu Jan 18 10:09:50 2018 Jon RichardsonLaserGeneralRIN Measurement of 400 mW CO2 Laser in ProgressThe 400 mW CO2 laser on the Hartmann table
is currently configured for a measurement
of its relative intensity noise. It is aligned
  
  205   Mon Jan 22 10:39:32 2018 Jon RichardsonLaserGeneralRIN Measurement of 400 mW CO2 Laser in ProgressAttached for reference is the RIN measurement
from the initial data.

 SRM_CO2_RIN_v1.pdf 
  88   Wed Aug 4 09:57:38 2010 Aidan, JamesComputingHartmann sensorRMS measurements with Hartmann sensor[INCOMPLETE
ENTRY]
We set up the Hartmann sensor and
 rms_analyze_centroids_aidan.pdfRMS_WonCode.pngRMS_WonCodeLessPrism.png 
  212   Wed May 30 18:50:05 2018 awadeComputingDAQRebooted fb4Time was still off by nine days as of yesterday. 
I tried rebooting remotely to see if time
would correct to system clock.  It didn't
  
  237   Thu Aug 1 15:20:39 2019 Edita BytyqiLab InfrastructureOpticsReflector Mount and DC SupplyYesterday, we were able to take some data
using the 120 V DC power supply. The reflectors
cut at the focal point and radius were both
 20190731_170920.jpg20190801_145836.xcf20190801_145836.jpg20190801_150635.jpg20190801_145842.jpg 
  46   Thu May 27 13:18:51 2010 AidanElectronicsHartmann sensorRemoved Cooling fins from Hartmann sensorI removed the cooling fins from the Hartmann
sensor to see what steady-state temperature
it reached without any passive cooling elements.
 HWS_CONFIG3.jpg 
  42   Mon May 24 19:17:32 2010 AidanLaserHartmann sensorReplaced Brass Plate with Invar Hartmann PlateI just replaced the brass Hartmann plate
with the Invar one. The camera was off during
the process but has been turned on again.
  
  189   Wed Oct 11 19:14:16 2017 Jon RichardsonComputingElectronicsReplaced TCS MonitorI replaced the dead 24" monitor on
the work bench, which is connected to the
video multiplexer. Mike Pedraza was
  
  68   Thu Jul 22 11:02:59 2010 AidanComputingGeneralRestarted hartmann machinehartmann had started responding
to requests to log-in with the a request
to change the password. Attempts to change
  
  82   Fri Jul 30 10:04:54 2010 AidanComputingHartmann sensorRestarted the HWS EPICS channels Restarted the HWS EPICS channels
on hartmann with the following
command:
  
  155   Fri Sep 2 21:41:01 2011 AidanElectronicsHartmann sensorRestarting long term test of QFLD-950-3S9:40PM PDT - I've just restarted the long
term measurement of the Hartmann sensor noise
with the QFLD-950-3S.
  
  16   Fri Feb 12 21:00:06 2010 AidanElectronicsRing HeaterRing heater step function response - time seriesHideously slow internet at airport is making
me write a brief entry. This is the times
series of the hesilver watlow heater radiative
 silver_watlow_heater_step_function_response_2010-02-12.pdf 
  13   Thu Feb 11 18:04:08 2010 AidanLaserRing HeaterRing heater time constantI've been looking to see what the time
constant of the ring heater is. The attached
plot shows the voltage measured by the photodiode
  
  14   Thu Feb 11 21:46:23 2010 AidanElectronicsRing HeaterRing heater time constant measurement - start timeAfter leaving the ring heater off for several
hours I turned on a 40V, 0.2A supply at a
gps time of 949 988 700
  
  15   Fri Feb 12 11:39:28 2010 AidanElectronicsRing HeaterRing heater transfer functionI applied a step function to the silver
WATLOW heater and measured the response with
the photodiode. The power spectrum of the
 watlow_heater_transfer_fn.jpg 
  9   Thu Feb 4 19:45:56 2010 AidanMiscRing HeaterRing heater transfer function - increasing collection areaI mounted the thinner Aluminium Watlow
heater inside a 14" long, 1" inner
diameter cylinder. The inner surface was
 low-emissivity-tube.jpg 
  7   Thu Feb 4 14:05:59 2010 AidanElectronicsRing HeaterRing heater transfer function measurement 240mHz-5HzI've been trying to measure the ring heater
transfer function (current to emitted power)
by sweeping the supply voltage and measuring
  
  8   Thu Feb 4 15:26:37 2010 AidanElectronicsRing HeaterRing heater transfer function measurement 240mHz-5Hz

    
        
  
  203   Tue Nov 14 19:08:00 2017 Jon RichardsonComputingNetwork architectureRsync Server for Automatic LDAS BackupsI implemented an access point for LDAS
to pull data from the TCS lab EPICS frame
archive (fb4:/frames) via rsync. The setup
  
  36   Thu May 13 16:54:46 2010 AidanComputingHartmann sensorRunning MATLAB programs in C on CentOS - only use R2008b for less hassle After much effort trying to get a
MATLAB routine to compile in C I discovered
the following pieces of information.
  
  89   Mon Aug 9 10:58:37 2010 AidanLaserSLEDSLED 15-day trend Here's a plot of the 15-day output
of the SLED.
Currently there is an 980nm FC/APC
 SLED_superlum_long_term_test_0005A_annotated_15-day_result.pdf 
  87   Sat Jul 31 11:54:20 2010 AidanComputingSLEDSLED Test Day 5 - Re-tuned current set-point control voltageMain Points

    Re-set SLED current set-point
control voltage to 0.111V
    SLED
  
  80   Wed Jul 28 18:32:12 2010 AidanElectronicsSLEDSLED long term test - Day 2Here's the data from the last 2 1/2 days
of running the SLED. The decrease in photo-current
measured by the on-board photo-detector is
 SLED_superlum_long_term_test_0003A.pdf 
  81   Thu Jul 29 10:09:19 2010 AidanElectronicsSLEDSLED long term test - Day 2I've attached the Acceptance Test Report
data from SUPERLUM for this SLED. I've also
determined the expected percentage decrease
 superlum_SLED_ATR.pdf 
  41   Thu May 20 17:08:36 2010 AidanElectronicsSLEDSLED module - and driver - LIGO D1000892 - and Hartmann sensorVerified that the test-point for the current
limit pot on the driver (Wavelength Electronics
- LDTC 0520) was at 0.5V. Driver is set to
 2010-05-20_hartmann_image_and_located_spot.jpg 
  51   Thu Jun 17 07:40:07 2010 James KMiscHartmann sensorSURF Log -- Day 1, Getting Started For Wednesday, June 16:   
  52   Thu Jun 17 22:03:51 2010 James KMiscHartmann sensorSURF Log -- Day 2, Getting StartedFor Thursday, June 17:
Today I attended a basic laser safety
training orientation, the second Introduction
  
  53   Sat Jun 19 17:31:46 2010 James KMiscHartmann sensorSURF Log -- Day 3, Initial Image Analysis   7x 
  55   Tue Jun 22 22:30:24 2010 James KMiscHartmann sensorSURF Log -- Day 5, more Hartmann image preliminary analysis Today I spoke with Dr. Brooks and
got a rough outline of what my experiment
for the next few weeks will entail. I'll
 13x 
  56   Wed Jun 23 06:49:48 2010 AidanMiscHartmann sensorSURF Log -- Day 5, more Hartmann image preliminary analysisNice work!
 

  
  57   Wed Jun 23 22:57:22 2010 James KMiscHartmann sensorSURF Log -- Day 6, Centroiding So in addition to taking steps towards
starting to set stuff up for the experiment
in the lab, I spent a good deal of the day
 10x 
  58   Fri Jun 25 00:11:13 2010 James KMiscHartmann sensorSURF Log -- Day 7, SLED Beam Characterization 
 BeamData.xlsxbeam_pdfs.zipbeamdata.mgsbeam.m 
  64   Tue Jul 6 21:57:19 2010 James KunertMiscHartmann sensorSURF Log -- SLED fiber output temporal analysisIn the previous log, I describe the direct
measurement of the fiber output beam using
the Hartmann sensor with the plate removed.
 6x 
  62   Thu Jul 1 09:40:13 2010 James KunertMiscHartmann sensorSURF Log 8 -- more SLED characterizationAs I started setting up my next experiment,
I noticed that the beam size from the SLED
appeared to be larger than expected from
 8x 
  65   Thu Jul 15 20:06:37 2010 James KMiscHartmann sensorSURF Log: Thermally Induced Defocus ExperimentsA quick write-up on recent work can be
found at: Google
Docs
 pydefoc.mpyanalyze.mpyimportsingle.mpyimportM.mframesumexport2.py 
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