| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
7268
|
Fri Aug 24 09:21:45 2012 |
Steve | Update | IOO | MC2 damping restored |
|
|
|
7267
|
Fri Aug 24 00:23:20 2012 |
Den | Update | Modern Control | feedback using LQG method | I did a simulation of linear quadratic
gaussian (LQG) controller applied to local
damping. The cost function was frequency |
|
|
7266
|
Thu Aug 23 22:54:32 2012 |
Jenne | Update | Green Locking | Xgreen still wouldn't lock |
|
|
|
7265
|
Thu Aug 23 22:44:32 2012 |
Koji | Update | PSL | FSS Slow DC servo is turned off (not temporary) | [Koji Rana]
The FSS Slow DC servo was turned
off. |
|
|
7264
|
Thu Aug 23 22:41:04 2012 |
Koji | Update | IOO | MC Autolocker update | [Koji Rana]
MC Autolocker was updated. (i.e.
mcup and mcdown were updated) |
|
|
7263
|
Thu Aug 23 22:21:13 2012 |
rana | Configuration | IOO | MCL turned back on | I turned on some filters and gain in the
SUS-MC2_MCL filter bank tonight so as suppress
the seismic noise influence on MC_F. This |
|
|
7262
|
Thu Aug 23 21:53:18 2012 |
Yaakov | Update | PEM | Accelerometer location | The MC1 accelerometer cube (3 accelerometers
arranged in x,y,z) is under the PSL table,
as I found it at the beginning of the summer. |
|
|
7261
|
Thu Aug 23 21:53:06 2012 |
Jenne | Update | Green Locking | Xgreen still wouldn't lock | [Jenne, Jamie]
We took a look at the Xend green,
and we weren't able to make it lock. |
|
|
7260
|
Thu Aug 23 17:51:25 2012 |
Manasa | Update | | IMC Ringdown |
|
|
|
7259
|
Thu Aug 23 17:17:49 2012 |
Masha | Summary | Computers | Code Folder Status | I cleaned up my directory (/users/masha)
today. A lot of the files are just code that
I experimented with, but the important files |
|
|
7258
|
Thu Aug 23 15:42:48 2012 |
rana | Update | STACIS | STACIS signal box made |
I found this
entry in the old 40m ilog which |
|
|
7257
|
Thu Aug 23 15:35:33 2012 |
rana | Update | | IMC Ringdown |
It is HIGHLY unlikely
that the IMC mirrors are having any effect |
|
|
7256
|
Thu Aug 23 12:17:39 2012 |
Manasa | Update | | IMC Ringdown | The ringdown measurements are in progress.
But it seems that the MC mirrors are getting
kicked everytime the cavity is unlocked by |
|
|
7255
|
Thu Aug 23 10:38:12 2012 |
Steve | Update | General | vent prepartion for fast-track vent |
|
|
|
7254
|
Thu Aug 23 10:08:13 2012 |
Steve | Update | PEM | seismometers? |
|
|
|
7253
|
Thu Aug 23 00:18:54 2012 |
Jenne | Update | PEM | Weird BLRMS increase | While I was gone for dinner break, the BLRMS
went back to normal. Then, almost 2 hours
later, another peak appeared, this time closer |
|
|
7252
|
Wed Aug 22 20:33:51 2012 |
Den | Update | Adaptive Filtering | MC_L in ARMS | Jenne and I did adaptive filtering of MC_L
and measured how X and Y ARM control signals
change compared to non-filtered MC_L. We |
|
|
7251
|
Wed Aug 22 18:58:12 2012 |
Jenne | Update | PEM | Weird BLRMS increase | It seems as though there is something funny
going on around ~1.5 Hz, starting a little
over an hour ago. |
10x |
|
7250
|
Wed Aug 22 16:50:09 2012 |
Jenne | Update | Locking | Double integrator in ARM LSC servos | Last week, Rana changed the integrators
in the arm LSC servo filters to be double
integrators with complex poles. |
|
|
7249
|
Wed Aug 22 15:47:34 2012 |
jamie | Summary | General | vent prepartion for fast-track vent | We are discussing venting first thing next
week, with the goal of
diagnosing what's going on in the |
|
|
7248
|
Wed Aug 22 11:41:20 2012 |
steve | Update | General | grout plate for optical table at the ends | Reinforced concrete grout plate for existing
carbon steel stands at the ends.
|
|
|
7247
|
Wed Aug 22 01:54:03 2012 |
Jenne | Update | General | List o' things: YarmASS, ETMXTcamera, POXwhiteningTriggering | While meditating
on other things, I have noticed / found the
following today: |
|
|
7246
|
Tue Aug 21 22:54:47 2012 |
Jenne | Update | Locking | Removed beam dump from POY path | POY was looking funny, and the YARM wasn't
locking. It looked like POY wasn't
seeing any light at all. I went to |
|
|
7245
|
Tue Aug 21 18:23:58 2012 |
Manasa | Update | 40m Upgrading | ETMX table layout | Optical layout of the current endtable
at ETMX has been updated in the svn repository
(directory: 40M_Optical Layout). This layout |
|
|
7244
|
Tue Aug 21 15:26:04 2012 |
Steve | Update | PEM | temp sensor for vacuum | Temperature sensor for vacuum. How many
: 2 or 3 ? $350 each
Glass encapsulated thermistor |
|
|
7243
|
Tue Aug 21 15:25:41 2012 |
Jenne | Update | Computers | pyepics installed | I installed pyepics version 3 (http://cars9.uchicago.edu/software/python/pyepics3/overview.html)
in ..../scripts/pylibs
. I also added an "epics.conf" |
|
|
7242
|
Tue Aug 21 09:14:01 2012 |
Steve | Update | SUS | oplevs centered | Oplevs centered in flashing condition,
except PRM and SRM. IP POS centered
also, |
|
|
7241
|
Tue Aug 21 01:59:33 2012 |
Jenne | Update | Green Locking | Green locking needs help! | The green beam for the Xarm is flashing
a pretty nice 00 mode, but isn't catching
lock. |
|
|
7240
|
Tue Aug 21 01:54:09 2012 |
Jenne | Update | Locking | FPMI locked - arms locked with IR | I (for the first time personally) locked
the FPMI. I have data for the POX11I,
POY11I, AS55Q error signals for each arm |
|
|
7239
|
Tue Aug 21 00:35:25 2012 |
rana | Summary | IOO | Visibilities and Chrome | MC and PMC vis: |
|
|
7238
|
Tue Aug 21 00:02:05 2012 |
rana | Summary | Computer Scripts / Programs | GDS/DTT bug: 10 digit GPS times not accepted | I've noticed that we're experiencing this
bug which was previously seen at |
|
|
7237
|
Mon Aug 20 23:31:49 2012 |
Jenne | Update | CDS | Note to self - fast PSL chans | Rana points out that we haven't had fast
channels for PMC (trans, refl, pzt), input
laser things, more FSS things since the upgrade. |
|
|
7236
|
Mon Aug 20 18:10:44 2012 |
Jenne | Update | Cameras | video capture script copied over to real scripts directory | The videocapture.py script is now in ...../scripts/general/
, along with the videoswitch.
Also, there's a button gui on the |
|
|
7235
|
Mon Aug 20 13:10:31 2012 |
jamie, jenne | Update | SUS | ETMX is not happy |
|
|
|
7234
|
Mon Aug 20 13:02:57 2012 |
Den | Update | Adaptive Filtering | 1 Hz resonance | Static filter was adjusted to filter 1
Hz resonance in MCL and it could do it. Stack
is not great in this experiment due to the |
|
|
7233
|
Mon Aug 20 11:36:44 2012 |
Steve | Update | SUS | ETMX is not happy | ETMX has some periodic oscillation. It's
damping was found tripped this morning. |
|
|
7232
|
Mon Aug 20 09:49:01 2012 |
Steve | Update | Cameras | video cameras in the DARK |
|
|
|
7231
|
Sun Aug 19 19:56:20 2012 |
Yaakov | Update | STACIS | STACIS signal box made | I made the signal box as described in eLog
7210. It adds the geophone signal and |
|
|
7230
|
Sun Aug 19 19:02:47 2012 |
Den | Update | CDS | PEM -> RFM -> OAF | Data from PEM now goes directly to OAF
without using RFM. Transmission RFM ->
OAF errors are gone as RFM has to read 30 |
|
|
7229
|
Sun Aug 19 01:41:27 2012 |
Masha | Update | PEM | Earthquake Classified | There was a 5.6 Earthquake that occurred
near Tofino, Canada about 30 minutes ago.
It showed up rather strongly on the BLRMS. |
|
|
7228
|
Sun Aug 19 00:54:07 2012 |
Masha | Update | PEM | ADC channel switch, triangulation script | Since the classification finally works
(or seems to work..), I wrote triangulation
scripts in Python which triangulate the signals, |
|
|
7227
|
Sat Aug 18 19:40:47 2012 |
Sasha | Update | Simulations | C1LSP MEDM Screens Added |
|
|
|
7226
|
Sat Aug 18 19:29:56 2012 |
Den | Update | PEM | EM 172 microphones noise | I've put EM 172 microphones inside Steve's
isolation box to measure their noise. I've
attached mics to each other and aligned them |
|
|
7225
|
Sat Aug 18 17:09:01 2012 |
Sasha | Update | Simulations | C1LSP MEDM Screens Added | C1LSP has been added to the site map. I'll
work on filling in the structure some more
today and tomorrow (as well as putting up |
|
|
7224
|
Sat Aug 18 03:55:12 2012 |
Yoichi | Summary | LSC | X-arm locking again | Tonight, I worked on the X-arm locking
again. I did not have any significant progress,
but observed several issues and will give |
|
|
7223
|
Sat Aug 18 01:40:09 2012 |
Masha | Configuration | PEM | Online Seismic Noise Classification Widget | I added
a widget to the C1PEM_OVERVIEW MEDM screen.
The screen shows the nine seismometer channels |
|
|
7222
|
Fri Aug 17 18:49:55 2012 |
Manasa | Update | 40m Upgrading | Optical layout updated |
|
|
|
7221
|
Fri Aug 17 18:17:16 2012 |
Masha | Configuration | PEM | Online Seismic Noise Classification - Part 2 | As promised in previous e-log, this log
is all about the current online seismic noise classification |
|
|
7220
|
Fri Aug 17 16:58:06 2012 |
Masha | Update | PEM | Online Seismic Noise Classification - Part 1 | Den and I decided to try to classify
seismic signals in the frequency domain |
10x |
|
7219
|
Fri Aug 17 14:45:51 2012 |
rana | Update | Cameras | video cameras in the dark | The problem with the glow on the
ETMY face is due to the red light being scattered
off of the optical table from the HeNe laser |
|