| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
339
|
Thu Sep 2 18:54:10 2010 |
tara | Notes | Computers | ACAV,RCAV's pds connected to DAQ |
ACAV's PD for transmitted beam is
connected to PSL1 |
|
|
2363
|
Wed Jul 10 12:37:38 2019 |
ScottA | DailyProgress | TempCtrl | AD590 Board | I reflow soldered 3 channels to an AD590
temperature board for a differential measurement test.
I expect to run the experiment soon to see |
|
|
2365
|
Wed Jul 10 18:01:24 2019 |
rana | DailyProgress | TempCtrl | AD590 Board | show us what you got for the LISO or ZERO
noise budget of this circuit before testing;
also sketch of the experiment setup |
|
|
2366
|
Sat Jul 13 22:19:35 2019 |
ScottA | DailyProgress | TempCtrl | AD590 Experimental Sketch and Zero Noise Budget | AD590 Zero Noise Budget Analysis
I
modeled the noise of the ADR4550 from its
datasheet (https://www.analog.com/media/en/technical-documentation/data-sheets/ADR4520_4525_4530_4533_4540_4550.pdf Figure |
|
|
2387
|
Sun Aug 11 23:08:10 2019 |
ScottA | DailyProgress | TempCtrl | AD590 Temp. Sensing Circuit Open to Air vs Insulated and Closed | Because of the previous data comparing
the open box vs the closed box was varying
unexpectedly, I re-ran the experiment with |
|
|
1301
|
Fri Aug 16 10:35:44 2013 |
Erica | Notes | Electronics Equipment | AD590 msrmt, conversion to freq noise | Tuesday:
I added sockets to the ends of the wire to |
|
|
108
|
Thu Apr 15 16:42:32 2010 |
Frank | Electronics | RefCav | AD590 readout-box modified | in order to gain more s/n ratio i modified
the existing AD590 readout-box a little bit.
I assumed that we wanna operate the cavity |
|
|
1596
|
Sun Oct 25 22:15:35 2015 |
Antonio | Summary | EOM | AEOM installed in the South path. Noise issue. | Summary
The AEOM has been installed in
the South path replacing the EOM 21MHz used |
|
|
1084
|
Tue Nov 27 13:13:51 2012 |
kristen | DailyProgress | PMC | ANSYS result for PMC body mode | I made
a simulation for PMC body mode, and found
out that for Al PMC, the first body mode |
|
|
1086
|
Mon Dec 3 16:57:27 2012 |
tara | DailyProgress | PMC | ANSYS result for PMC body mode |
|
|
|
1087
|
Tue Dec 18 19:07:24 2012 |
tara | DailyProgress | PMC | ANSYS result for PMC body mode | Kristen and Norna came to ATF for impact-hammering
of the metal PMC in the gyro setup
LINK |
|
|
635
|
Fri Jul 22 16:31:12 2011 |
tara | DailyProgress | AOM | AOM adaptor plate |
As Frank suggested, I edited
the drawing, so that the adaptor plate can |
|
|
633
|
Thu Jul 21 18:03:20 2011 |
tara | DailyProgress | AOM | AOM adaptor plate, | I made drawings for aom block and adaptor
plate. The assembly is for 3" beam height.
|
|
|
1471
|
Thu Aug 14 15:23:36 2014 |
Emily, Evan | Notes | optic | AOM fiber noise cancellation | New
setup for fiber phase noise cancellation |
|
|
57
|
Sun Feb 7 20:56:03 2010 |
Frank | Laser | RefCav | AOM power modulation & pointing | seems like a bad AOM and an impedance matching
problem together. exchanging the semi-rigid
cable by other cables produces a lot of different |
|
|
2089
|
Tue Feb 13 00:02:52 2018 |
Craig | DailyProgress | DAQ | ASD estimates - SR785 vs Gabriele's cymac3 ADC | There appears to be a factor of 5/3 difference
between the ASD output of the SR785 and the
CRIME lab's cymac3 ADC. To be clear, |
|
|
1145
|
Mon Apr 8 17:44:20 2013 |
Evan | Notes | PMC | About PMCs | [Rana, Tara, Evan, Eric, Nic]
We are designing a PMC, to do that
we should be able to answer some fundamental |
|
|
1146
|
Tue Apr 9 15:39:16 2013 |
tara | Notes | PMC | About PMCs | Considerations for PMC design:
Stiffness(Acoustic susceptibility)
& heavy material: With heavier material, |
|
|
771
|
Wed Dec 28 01:30:46 2011 |
Frank | DailyProgress | Seismic | Accelerometer noise floor and table seismic noise | Measured the noise floor of the accelerometer
to compare it with the seismic noise we measure
with it (and the TFs i want to measure). |
|
|
773
|
Thu Dec 29 01:11:32 2011 |
Frank | DailyProgress | Seismic | Accelerometer noise floor update | found the old data from the seismometer
measurements we did some time ago. Measurements
agree more or less. Seismic noise floor measured |
|
|
1545
|
Thu Apr 9 17:03:35 2015 |
Aidan | Summary | Computers | Acromag ADC set up | I set up an Acromag slow controls based
on the procedure that Keith wrote in T1400200.
It's really pretty easy. It took an hour |
|
|
1546
|
Fri Apr 10 09:33:43 2015 |
Evan | Summary | Computers | Acromag ADC set up |
|
|
|
1547
|
Wed Apr 15 17:51:43 2015 |
Aidan | Summary | DAQ | Acromag XT1541 DAC working correctly - a little trick to configure | Aidan.
Success!
I configured the Acromag XT1541 |
|
|
1548
|
Thu Apr 16 13:31:32 2015 |
Aidan | Summary | DAQ | Acromag XT1541 DAC working correctly - a little trick to configure | https://nodus.ligo.caltech.edu:30889/ATFWiki/doku.php?id=main:resources:computing:acromag
|
|
|
1572
|
Mon Aug 17 17:02:41 2015 |
Aidan | Summary | Computers | Acromag binary outputs working - still can't control TTFSS box though | I managed to figure out the modbusDrv configuration
settings to get the binary output of the
Acromag working. I've updated the Wiki |
|
|
1746
|
Tue Oct 11 20:09:06 2016 |
awade | DailyProgress | Electronics Equipment | Acromag cards giving random noisy readouts | I had hooked up the a channel to monitor
the tank temperature. However, now I am seeing
random noise and also zero readouts on every |
|
|
1987
|
Tue Nov 21 19:49:04 2017 |
awade | DailyProgress | PLL | Acromag loading of SR560 in PLL | I was double checking the UGF of the PLL
and was getting the strange results of 8
kHz UGF with the standard settings of 10 |
|
|
1838
|
Mon Jun 5 13:56:52 2017 |
yinzi | Notes | DAQ | Acromag noise measurements | Measured the acromag noise (input and output).
For the input noise, a function
generator was set up to input a sin signal |
|
|
1656
|
Fri Jul 1 16:50:35 2016 |
Aidan, Andrew | Summary | DAQ | Acromag slow controls back up | I showed Andrew how to set up the slow
controls. We got the previous 3 ADC channels
back up. |
|
|
1900
|
Thu Sep 7 18:21:56 2017 |
awade, Craig | DailyProgress | Computers | Acromag2 down | The computer acromag2 has inexplicably
died. It turns up some error messages
recovering jornal on /dev/sda1 that doesn't |
|
|
1123
|
Wed Mar 20 20:44:32 2013 |
Evan | DailyProgress | optic | Added Faraday isolator | Today I installed the Faraday isolator
after the PMC. Tara and I then spent some
time trying to figure out why the PDH error |
|
|
2049
|
Mon Jan 15 14:43:53 2018 |
awade | DailyProgress | FSS | Added cap to FSS acromag binary channel 5V supply | Edit Thu Apr 12 22:09:21 2018 (awade): WRONG, |
|
|
2134
|
Wed Mar 14 15:19:52 2018 |
Craig | DailyProgress | DAQ | Added four new ADC channels to vader (10.0.1.50) | Last night I soldered together four BNCs
and attached them to one of the acromags
with some free channels. Turns out |
|
|
2345
|
Tue May 14 18:13:21 2019 |
anchal | DailyProgress | Computers | Added threshold channels in autolocker and fastmon rms monitor | I was finding myself changing thresholds
every time I change power levels. Also, the
fastmon rms monitors were not working |
|
|
2561
|
Tue Mar 17 18:03:22 2020 |
anchal | DailyProgress | ISS | Added true OOL transmission PD for North Path | Today, I added a new out-of-loop transmission
PD (Thorlabs PDA10CS) for the north path.
This will be helpful in future measurements |
|
|
2560
|
Mon Mar 16 16:16:17 2020 |
anchal | DailyProgress | ISS | Added true OOL transmission PD for South Path | Today, I added a new out-of-loop transmission
PD (Thorlabs PDA10CS) for the south path.
This will be helpful in future measurements |
|
|
2534
|
Thu Feb 13 18:06:00 2020 |
anchal | DailyProgress | NoiseBudget | Adding dark noise measurement of beatnote detector SN101 | I measured dark noise of the beatnote detector
reaching moku and its effect on measured
beatnote frequency noise. |
|
|
2437
|
Mon Sep 30 16:47:15 2019 |
anchal | DailyProgress | NoiseBudget | Adding links again; Comparison with Old Estimates on same plot | With comparison with old estimates:
CTN_Latest_BN_Spec_With_OldEst.pdf |
|
|
2388
|
Mon Aug 12 11:56:21 2019 |
anchal | DailyProgress | NoiseBudget | Adding specifics of discepancy | Adding more specifics:
Discrepancy #1
Following
points are in relation to previously used
noisebudget.ipynb |
|
|
2431
|
Tue Sep 24 15:40:33 2019 |
anchal | DailyProgress | NoiseBudget | Adding specifics of discepancy 2 | Today I ran the two codes with the same
parameter values to check if the effective
reflectivities calculated during the calculation |
|
|
2432
|
Tue Sep 24 17:11:13 2019 |
anchal | DailyProgress | NoiseBudget | Adding specifics of discepancy 2 (More) | Also, I found that the effective reflectivities
from the top surface of layers calculated
in Evans |
|
|
2364
|
Wed Jul 10 12:46:07 2019 |
ScottA | DailyProgress | RFAM | Addition of 1k ohm Resistor to input of DC port on Bias Tee | My goal was to investigate the effect of
placing a 1k ohm resistor as the input of
the DC port of the Bias Tee. The expectation |
|
|
2135
|
Thu Mar 15 10:29:04 2018 |
awade | DailyProgress | scatter | Addressing 500 Hz scatter pickup | Going back the original issue of scattering,
it appears that there is light being back
reflected from somewhere in the post PMC |
|
|
2327
|
Thu Apr 25 20:24:27 2019 |
anchal | Summary | Electronics Equipment | Adjustable TTL Trigger Generator Box | Today I made a standalone Adjustable TTL
Trigger generator box. Following are some
features: |
|
|
1185
|
Tue May 28 18:23:48 2013 |
Evan | DailyProgress | Electronics Equipment | Adjusted TTFSS offset; plugged RFPD DC into daq | The common error signal on the TTFSS has
a 5 mV offset, which was causing the loop
to catch on the edge of the error signal, |
|
|
1121
|
Fri Mar 15 11:23:45 2013 |
tara | Notes | optic | AlAs/GaAs | I'm thinking about the spec for AlAs/GaAs
coatings. Here is the list of what I have:
coating on concave side |
|
|
1122
|
Sun Mar 17 16:09:10 2013 |
Evan | Notes | optic | AlAs/GaAs | We should be able to mode match into a
cavity with 1.0 m ROC mirrors using only
the optics we already have on the table. |
|
|
1163
|
Tue Apr 30 01:15:26 2013 |
tara | Notes | NoiseBudget | AlAs/GaAs layer structure optimized for TO | I'm computing coating Brownian and
thermo optic noise (TO) in AlGaAs coatings
using GWINC code to compare it with the result |
|
|
1168
|
Thu May 2 03:03:48 2013 |
tara | Notes | NoiseBudget | AlAs/GaAs layer structure optimized for TO | [matt, tara] Got AlxGa1-xAs
material parameters from Matt Abernathy.
I plug the numbers (all in SI) in GWINC, |
|
|
1169
|
Thu May 2 23:40:46 2013 |
tara | Notes | NoiseBudget | AlAs/GaAs layer structure optimized for TO | I used GWINC code to calculate TO noise
in AlGaAs coatings, with some modifications
to the code I can get the result that is |
6x |