| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
15768
|
Fri Jan 15 17:04:45 2021 |
gautam | Update | LSC | Messed up LSC sensing | I want to lock the PRFPMI again (to commission
AS WFS). Have had some
success - but in doing characterization, |
|
|
7141
|
Fri Aug 10 11:00:52 2012 |
Sasha | Update | Simulations | Messing with ETMX | I've been trying to get the simPlant model
to work, and my main method of testing is
switching between the real ETMX and the simulated |
|
|
15176
|
Thu Jan 30 12:52:10 2020 |
Jon | Update | BHD | Metal OMCs procured | Last night Yehonathan and I located the
two steel PMCs in the QIL, with help from
Anchal. They are currently sitting on my |
|
|
15182
|
Fri Jan 31 16:57:09 2020 |
gautam | Update | General | Metal PMC parts | Jon brought over a box of parts for constructing
the metal PMCs. I have stored it along the
Y-arm, on top of the green optics cabinet. |
|
|
15198
|
Fri Feb 7 12:58:25 2020 |
Yehonathan | Update | General | Metal PMC parts | I took the metal PMC box and examined its
content and find the following items:
|
18x |
|
12356
|
Fri Jul 29 19:37:43 2016 |
Praful | Update | Electronics | Mic Amplifier | I set up a test inverting amplifier circuit
using the LT1677 opamp:
|
7x |
|
12369
|
Wed Aug 3 18:53:46 2016 |
Praful | Update | Electronics | Mic Amplifier | I could not get Den's circuit to work
for some reason with microphone input, so
I decided to try to use another circuit I |
|
|
12380
|
Fri Aug 5 16:25:08 2016 |
Praful | Update | Electronics | Mic Amplifier | I took the spectrum of an EM172 connected
to my amplifier inside and outside a large
box filled with foam layers: |
|
|
12395
|
Wed Aug 10 18:10:26 2016 |
Praful | Update | Electronics | Mic Amplifier | I set up 3 of my circuits in the interferometer
near MC2 to do a huddle test. I have the
signals from my microphones going into C1:PEM-MIC_1_IN1, |
|
|
12396
|
Wed Aug 10 19:37:08 2016 |
gautam | Update | Electronics | Mic Amplifier | In order to help Praful do his huddle test,
I have temporarily arranged
for the outputs of the 3 channels he wants |
|
|
12402
|
Thu Aug 11 17:30:05 2016 |
Praful | Update | Electronics | Mic Amplifier | The results of my first huddle test were
not so good- one of the signals did not match
the other two very well- so I changed the |
|
|
12405
|
Fri Aug 12 19:13:25 2016 |
Praful | Update | Electronics | Mic Self Noise | I used the Wiener filtering method described
by Ignacio and Jessica (https://dcc.ligo.org/DocDB/0119/T1500195/002/SURF_Final.pdf
and https://dcc.ligo.org/public/0119/T1500194/001/Final_Report.pdf) |
8x |
|
12406
|
Fri Aug 12 21:26:28 2016 |
rana | Update | PEM | Mic Self Noise | Seems to good to be true. Maybe you're
over fitting? Please put all the traces on
one plot and let us know how you do the parameter |
|
|
12408
|
Mon Aug 15 12:23:56 2016 |
Praful | Update | PEM | Mic Self Noise | I didn't have a separate training set
and data set, so I think that's why the
graphs came out looking too good. The units |
9x |
|
7145
|
Fri Aug 10 16:39:44 2012 |
Eric | Summary | Locking | Michelson Locking | I'm working on locking the Michelson now
in order to put an excitation on one of the |
|
|
7149
|
Fri Aug 10 19:49:11 2012 |
Eric | Summary | Locking | Michelson Locking Procedure and Measurements |
|
|
|
4527
|
Fri Apr 15 02:17:18 2011 |
kiwamu | Update | LSC | Michelson locked | [Koji / Kiwamu]
The |
|
|
9603
|
Wed Feb 5 18:36:56 2014 |
rana | Frogs | elog | MicroSoft BingBot is attacking us | The ELOG was frozen, with this in
the .log file:
GET /40m/?id=1279&select=1&rsort=Type |
|
|
10309
|
Thu Jul 31 18:54:03 2014 |
Chris | Frogs | elog | MicroSoft BingBot is attacking us |
|
|
|
10311
|
Thu Jul 31 21:21:49 2014 |
Koji | Frogs | elog | MicroSoft BingBot is attacking us | Oh,
this is cool! Thanks!
I could not figure out how to place |
|
|
12436
|
Wed Aug 24 14:11:09 2016 |
Praful | Update | Electronics | Microphone Testing | I added an EM172 to my soldered circuit
and it seems to be working so far. I have
taken a spectra using the EM172 in ambient |
|
|
7633
|
Fri Oct 26 18:25:02 2012 |
Ayaka | Update | Adaptive Filtering | Microphone noise again | [Raji, Ayaka]
Thanks to Den, power supplies for
microphone circuit are changed. |
|
|
7634
|
Fri Oct 26 19:06:14 2012 |
Den | Update | Adaptive Filtering | Microphone noise again |
|
|
|
7636
|
Mon Oct 29 08:41:22 2012 |
Ayaka | Update | Adaptive Filtering | Microphone noise again |
|
|
|
448
|
Fri Apr 25 13:20:04 2008 |
Andrey | Update | PEM | Microphone test | In response to Rana's request, I tested the
microphone (if it is alive or not) by clapping
my hands and speaking aloud nearby.
|
|
|
4853
|
Wed Jun 22 12:24:44 2011 |
Nicole | Summary | SUS | Midweek 2 Work Summary | I
have made my transfer function model |
|
|
18023
|
Thu Dec 7 16:48:02 2023 |
JC | Update | BHD | Mighty Mouse Connecters | Mighty Mouse Connector Progress
Today,
Dean and I gather the part to install the
Mighty Mouse Connectors. The tools we gather |
|
|
1808
|
Wed Jul 29 14:56:44 2009 |
Jenne | Update | PEM | MiniEarthquakes due to construction | The construction people next door seem
to be getting pretty excited about pounding
things lately. At my desk the floor |
|
|
9010
|
Tue Aug 13 22:21:12 2013 |
Koji | Summary | General | Minicircuit Filter TFs (AG4395A test) | As a part of the network analyzer test
in the previous entry, the transfer functions
of Mini-Circuits filters we have at the 40m |
|
|
8161
|
Mon Feb 25 20:49:07 2013 |
Brett | Update | SUS | Minor Mod made to SUS_GLOBAL block | I made a minor modification to install
some output filters in the new global damping
GLOBAL box in c1sus.mdl. These will be needed |
|
|
11385
|
Tue Jun 30 20:26:24 2015 |
Eve | Update | General | Minor Summary Page Changes | I made several small, nit-picky changes
to the summary pages.
|
|
|
1984
|
Fri Sep 11 17:07:45 2009 |
Jenne | Update | Adaptive Filtering | Minor changes to ASS_TOP_PEM screen. | There was some uncertainty as to which
channels were being input into the Adaptive
Filtering screen, so I checked it out to |
|
|
2628
|
Mon Feb 22 13:08:27 2010 |
josephb | Update | Computers | Minor tweaks to c1omc | While working on c1omc, I created a .cshrc
file in the controls home directory, and
had it source the cshrc.40m file so that |
|
|
12776
|
Tue Jan 31 15:08:13 2017 |
ericq | Metaphysics | CDS | Minute Trend Koan | A novice was learning at the feet of Master
Daqd. At the end of the lesson he looked
through his notes and said, “Master, |
|
|
12777
|
Tue Jan 31 17:28:36 2017 |
rana | Summary | CDS | Minute Trend Koan | Someone installed "Debian" on
allegra. Why? Dataviewer doesn't work
on there. Is there some advantage to making |
|
|
12779
|
Tue Jan 31 20:25:26 2017 |
ericq | Summary | CDS | Minute Trend Koan |
|
|
|
12791
|
Thu Feb 2 18:28:29 2017 |
rana | Summary | CDS | Minute Trend Koan | and the song remains the same...
the version of SVN on these workstations
is ahead of the one on the other workstations |
|
|
4410
|
Fri Mar 18 11:29:36 2011 |
josephb | Update | CDS | Minute trend issues | [Joe, Alex]
Steve pointed out to me today he
couldn't get trends for his PEM slow channels |
|
|
2887
|
Thu May 6 17:47:01 2010 |
Alberto, kiwamu, Jc The 3rd (aka The Drigg) | Omnistructure | TMI | Minutes from the Lab Organization Commitee meeting | Today we met and we finally come up with
a lot of cool, clever, brilliant, outstanding
ideas to organize the lab. |
|
|
2888
|
Thu May 6 17:54:44 2010 |
Zach Korth -- Committee Oversight (Fun Division) | Omnistructure | TMI | Minutes from the Lab Organization Commitee meeting | Where are we going to put the tiki bar?
The ice cream machine? I am disappointed
in the details that appear to have been glossed |
|
|
15070
|
Wed Dec 4 08:54:07 2019 |
Yehonathan | Update | IMC | Mirror analog shaking | {Yehonathan, Gavin}
Yesterday we tried to shake ITMX
with a function generator in order to observe |
|
|
8190
|
Wed Feb 27 19:27:29 2013 |
Annalisa | HowTo | COMSOL Tips | Mirror support Eigenfrequency | I studied the eigenfrequencies of
a mirror support using COMSOL.
|
|
|
7379
|
Thu Sep 13 17:19:45 2012 |
Jenne | Update | SUS | Mirrors being installed on active TTs | I have given Den 4 G&H R>99.99%
mirrors to be installed on the 4 active tip
tilts. He's in there working on things |
|
|
7384
|
Fri Sep 14 01:05:36 2012 |
Den | Update | SUS | Mirrors being installed on active TTs |
|
|
|
2987
|
Wed May 26 00:50:16 2010 |
Jenne | Update | IOO | Mirrors moved in prep for round 2 of MC mode measuring | [Jenne, Kevin, Kiwamu]
We moved some optics in preparation
for measuring the MC mode after the first |
|
|
2991
|
Wed May 26 14:28:01 2010 |
Koji | Update | IOO | Mirrors moved in prep for round 2 of MC mode measuring | That's true. But I thought that you measured
the mode after those optics and the effect
of them is already included. |
|
|
2993
|
Wed May 26 15:34:00 2010 |
Jenne | Update | IOO | Mirrors moved in prep for round 2 of MC mode measuring |
|
|
|
5646
|
Mon Oct 10 18:53:04 2011 |
Katrin | Update | Green Locking | Mirrors whose angle of incidence is not 45° | The angle of incidence of light is for
some mirrors on the YARM end table different
from 45° even though the mirrors are |
|
|
10796
|
Sat Dec 13 14:26:36 2014 |
ericq | Update | LSC | Mismatched gains on ETMY Transmon QPD | Yesterday, we were seeing anomalously high
low frequency RIN in the y-arm (rms of 4%
or so). I swung by the lab briefly to check |
|
|
18003
|
Thu Nov 30 17:35:37 2023 |
Koji | Update | General | Missing PEM signals -> fixed | I
saw FB1 was pushed into the rack
(Attachment 1). Thank you very much for the |
|