| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
62
|
Thu Jul 1 09:40:13 2010 |
James Kunert | Misc | Hartmann sensor | SURF Log 8 -- more SLED characterization | As I started setting up my next experiment,
I noticed that the beam size from the SLED
appeared to be larger than expected from |
8x |
|
64
|
Tue Jul 6 21:57:19 2010 |
James Kunert | Misc | Hartmann sensor | SURF Log -- SLED fiber output temporal analysis | In the previous log, I describe the direct
measurement of the fiber output beam using
the Hartmann sensor with the plate removed. |
6x |
|
69
|
Thu Jul 22 21:46:55 2010 |
James Kunert | Misc | Hartmann sensor | Hartmann Sensor Thermal Defocus Measurement Noise & Ambient Light Effects | As discussed during the teleconference,
a series of experiments have been conducted
which attempt to measure the thermally induced |
|
|
84
|
Fri Jul 30 13:38:39 2010 |
James Kunert | Computing | Hartmann sensor | Summary of Thermal Defocus Data Analysis | Below is a table summarizing the results
of recent thermal defocus experiments. The
values are the calculated change in measured |
|
|
229
|
Mon Jun 17 20:29:34 2019 |
Jon | Lab Infrastructure | Computing | Server rack cleaned up, new workstation installed | In anticipation of the point absorber SURF
project, I cleaned up the server rack and
installed a new workstation today. |
|
|
230
|
Tue Jun 18 19:05:16 2019 |
Jon | Lab Infrastructure | General | Large optical table cleared and set up for point absorbers | Aidan and I continued the lab clean-up
today. There's still more to do, but
we did fully clear the large optical table |
|
|
231
|
Mon Jul 22 09:44:21 2019 |
Jon | Lab Infrastructure | Computing | Installed Amplifying VGA Splitter | The VGA signal outputted by the multiplexer
is too weak to drive two monitors. This has
required video cables to be manually switched |
|
|
235
|
Thu Jul 25 09:13:36 2019 |
Jon | Things to Buy | General | Need to Order Gloves | New gloves are ordered for the TCS and
QIL labs. They arrive tomorrow (Friday).
|
|
|
238
|
Tue Aug 6 19:22:28 2019 |
Jon | Electronics | Computing | QIL NFS server set up | I've started building the NFS server
for the QIL cymac. It's sitting on the
workbench in the TCS lab next to the rack. |
|
|
239
|
Fri Aug 9 20:33:11 2019 |
Jon | Electronics | Ring Heater | Power-regulated heater ready to use | Despite some considerable time spent,
I was not able to get the Omega SCR controllers
working. The first unit definitely arrived |
|
|
243
|
Wed Oct 30 12:13:14 2019 |
Jon | Misc | Delivery Note | New lab hardware | Ian and I moved some new hardware into
the lab, shown in the below photos. It is
from the shipment of loaned |
|
|
189
|
Wed Oct 11 19:14:16 2017 |
Jon Richardson | Computing | Electronics | Replaced TCS Monitor | I replaced the dead 24" monitor on
the work bench, which is connected to the
video multiplexer. Mike Pedraza was |
|
|
190
|
Wed Oct 11 20:19:06 2017 |
Jon Richardson | Lab Infrastructure | Hartmann sensor | Initial Characterization of the SRM Adaptive Wavefront Control | Today I made the first characterization
measurements of the mocked-up adaptive wavefront
control system planned for the signal recycling |
|
|
192
|
Fri Oct 13 18:35:29 2017 |
Jon Richardson | Computing | Electronics | Installed Maku Ethernet CCD Camera | I installed the Maku Gigabit CCD camera
driver software on the hws-ws machine. The
camera viewer can be opened from the terminal |
|
|
193
|
Mon Oct 23 19:02:42 2017 |
Jon Richardson | Laser | Hartmann sensor | Mitigated Heating Beam Losses | There were known to be huge (65%) heating
beam power losses on the SRM AWC table, somewhere
between the CO2 laser and the test optic. |
|
|
194
|
Tue Oct 24 10:19:53 2017 |
Jon Richardson | Computing | Electronics | Installed Maku Ethernet CCD Camera | There is an SDK for the camera with compiled
examples. For a really quick image grab from
the command line, use the following: |
|
|
195
|
Tue Oct 24 15:05:57 2017 |
Jon Richardson | Computing | Electronics | Installed a Realtime Beam Profiler for the Mako CCD Camera | Aidan found a C demo code for acquiring
a single image from the Mako CCD camera and
saving it to disk (SynchronousGrab -- aliased |
|
|
196
|
Wed Oct 25 15:34:14 2017 |
Jon Richardson | Computing | Frame Grabber | Mako CCD Camera Code is Fixed | I fixed a bug in how the raw Mako CCD camera
images are being read into memory. The bmp
files turn out to have a block memory layout |
|
|
200
|
Mon Oct 30 17:13:32 2017 |
Jon Richardson | Laser | Hartmann sensor | Write-Up of CO2 Projector Measurements | For archive purposes, attached is a write-up
of all the HWS measurements I've made
to date for the SRM CO2 projector mock-up. |
|
|
203
|
Tue Nov 14 19:08:00 2017 |
Jon Richardson | Computing | Network architecture | Rsync Server for Automatic LDAS Backups | I implemented an access point for LDAS
to pull data from the TCS lab EPICS frame
archive (fb4:/frames) via rsync. The setup |
|
|
204
|
Thu Jan 18 10:09:50 2018 |
Jon Richardson | Laser | General | RIN Measurement of 400 mW CO2 Laser in Progress | The 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 Richardson | Laser | General | RIN Measurement of 400 mW CO2 Laser in Progress | Attached for reference is the RIN measurement
from the initial data.
|
|
|
61
|
Wed Jun 30 00:00:13 2010 |
Kathryn and Won | Computing | Hartmann sensor | rms of centroid position changes | Given
below is a brief overview of calculating
rms of spot position changes to test the |
|
|
63
|
Sun Jul 4 06:45:50 2010 |
Kathryn and Won | Computing | Hartmann sensor | analyzing the wavefront aberration | Happy
Fourth of July!
|
|
|
2
|
Thu Dec 10 22:23:47 2009 |
Not Aidan | Laser | Laser | Test | Yes.
|
|
|
49
|
Tue Jun 15 16:30:10 2010 |
Peter Veitch | Misc | Hartmann sensor | Spot displacement maps - temperate sensitivity tests | Results of initial measurement of temperature
sensitivity of Hartmann sensor
"Cold" images were taken |
|
|
125
|
Wed Mar 9 01:00:12 2011 |
Peter Veitch, Won Kim | Computing | Hartmann sensor | Control of frame rate usign external trigger | We managed to successfully apply frame
rate control via external trigger from a
pulse generator. |
|
|
107
|
Fri Feb 18 14:53:50 2011 |
Phil | Laser | Laser | LTG laser delivering specified power | I got the LTG CO2 laser to deliver 50.02W
as measured by the Thorlabs 200W power head
today. This required running the Glassman |
|
|
10
|
Fri Feb 5 12:42:19 2010 |
Steve | Electronics | Pre-amplifier | Changes to board | Test entry |
|
|
11
|
Mon Feb 8 10:45:50 2010 |
Steve O'Connor | Electronics | Pre-amplifier | replace Pot with fixed Resistor |
|
|
|
101
|
Tue Nov 23 06:15:08 2010 |
Won | Computing | Hartmann sensor | Image folder structure | Attached below is a diagram that describes
the organisation of image folders that I
am using at the moment with Run_initialize |
|
|
120
|
Thu Mar 3 07:30:18 2011 |
Won | Computing | Hartmann sensor | Effect of high pixel count on rms | We have been investigating how pixel count
is related to the centroid displacements
by taking several sets of image frames with |
11x |
|
131
|
Fri Apr 1 02:41:55 2011 |
Won | Computing | Hartmann sensor | exposure time and reproducibility of centroids | Here is a brief and preliminary summary
of rms of centroid displacements calculated
at a number of different exposure time values. |
9x |
|
144
|
Tue May 10 00:55:08 2011 |
Won | Computing | Hartmann sensor | Matlab Compiler and Matlab Compiler Runtime |
I have spent some time with Matlab
Compiler and Matlab Compiler Runtime (MCR). |
|
|
19
|
Thu Apr 15 01:47:47 2010 |
Won Kim | Computing | Hartmann sensor | Notes on installing EDT PCIe4 DV frame grabber | * EDT PCIe4 DV frame grabber: installation
notes for linux system
|
|
|
22
|
Thu Apr 22 01:48:33 2010 |
Won Kim | Computing | Frame Grabber | from the manual install.pdf |
Regarding the installation of EDT
software, I overlooked a note from the install.pdf |
|
|
34
|
Thu May 6 21:32:26 2010 |
Won Kim | Computing | Hartmann sensor | Peak detection and centroiding code |
|
|
|
100
|
Thu Nov 4 13:31:19 2010 |
Won Kim | Computing | Hartmann sensor | Frame Grabber SDK installation | Appended
below is the step by step procedure that |
|
|
181
|
Mon May 13 14:09:02 2013 |
Zach | Computing | DAQ | C2ATF model rebuilt | ATF:1812 |
|
|
226
|
Fri Apr 12 17:40:58 2019 |
aaron | Lab Infrastructure | General | Measurements for Bake Station | I drew up one way we could set up the three
available bake ovens in the TCS lab on the
single oil pump. |
|
|
227
|
Mon Apr 15 08:12:58 2019 |
aaron | Lab Infrastructure | General | Measurements for Bake Station | My preference is to have tubes back towards
the wall where possible. We might be able
to drill a large diameter hole in the table |
|
|
228
|
Thu May 23 11:36:49 2019 |
agupta | Lab Infrastructure | Borrowed | Borrowed Label Maker | I have borrowed TCS's label maker in
CTN for few days. If you need it, you can
take it from the top of blue cabinets. |
|
|
187
|
Thu Jul 13 10:11:57 2017 |
awade | Electronics | Borrowed | Borrowed newport TrueRMS Supermeter | I lent your fancy Newport TrueRMS Supermeter
with the thermocouple plugs on the top to
the SURF student Jordon. He has it |
|
|
188
|
Thu Sep 21 18:56:53 2017 |
awade | Misc | Borrowed | Borrowed thorlabs power meter | Borrowed thorlabs power meter on 21 Sep
2017. It is on the south table of the
ATF lab. |
|
|
212
|
Wed May 30 18:50:05 2018 |
awade | Computing | DAQ | Rebooted fb4 | Time 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 |
|
|
213
|
Wed May 30 18:59:49 2018 |
awade | Computing | DAQ | FB4 ip address has changed | Maybe you've resolved this now. I moved
the DHCP allocation to 10.0.1.160 and
above around that time because a bunch of |
|
|
222
|
Wed Oct 17 16:17:45 2018 |
awade, Aidan | Computing | DAQ | Added AWC thermocouple reader back to acromag1 | Acromag IOC process was removed from PSL
lab acromag1 computer a few months ago.
Aidan needs them again but it would be better |
|
|
91
|
Tue Aug 17 22:34:14 2010 |
rana | Misc | General | ETM temperature after a 1W step | This 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 |
|
|
156
|
Tue Nov 29 09:13:49 2011 |
rana | Misc | LIGO 3G | Switching from CO2 to shorter wavelength solid state laser | Around a year ago, Phil and I discussed
the possibility of using an OPO to possibly
generate our own laser beam at ~2 microns |
|