| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
6558
|
Tue Apr 24 09:58:37 2012 |
steve | Update | PEM | earthquake 3.9 magnitude | Local
eq shakes the lab |
|
|
6557
|
Mon Apr 23 23:20:07 2012 |
Den | Update | PEM | microphones | Tonight I wanted to measure the ambient
noise level using Blue Bird mics and figure
out if Panasonic WM61a or Primo EM172/173 |
|
|
6556
|
Sat Apr 21 21:10:34 2012 |
Jamie | Update | CDS | trend frame issue partially resolved |
|
|
|
6555
|
Sat Apr 21 20:40:28 2012 |
Jamie | Update | CDS | framebuilder frame writing working again |
|
|
|
6554
|
Sat Apr 21 17:38:19 2012 |
Jamie | Update | CDS | dtt, dataviewer working; problem with trend frames |
|
|
|
6553
|
Fri Apr 20 23:02:25 2012 |
Den | Update | Adaptive Filtering | frequency domain filter | DFT-LMS is a frequency domain adaptive
filter that demonstrates faster convergence
compared to the time-domain LMS filter. |
|
|
6552
|
Fri Apr 20 19:54:57 2012 |
Jamie | Update | CDS | CDS upgrade problems | I ran into a couple of snags today.
A big one is that the framebuilder
daqd started going haywire when I told it |
|
|
6551
|
Thu Apr 19 22:18:24 2012 |
Den | Update | Adaptive Filtering | oaf algorithm: old vs new | Here are the issues that I found
not quite accurate in the old oaf code:
1. There is no need to calculate |
|
|
6550
|
Thu Apr 19 16:21:04 2012 |
Zach | Update | Computer Scripts / Programs | Arbcav updated, made badass | I have modified Arbcav to be way cooler |
6x |
|
6549
|
Thu Apr 19 09:45:43 2012 |
Suresh | Update | General | MC2 Oplev signals redirected for use in WFS servo |
|
|
|
6548
|
Thu Apr 19 08:43:16 2012 |
Jamie | Update | CDS | oaf |
|
|
|
6547
|
Wed Apr 18 23:12:49 2012 |
Den | Update | CDS | oaf | Adaptive filter outputs some non-zero signal
in the OFF position
|
|
|
6546
|
Wed Apr 18 19:59:48 2012 |
Jamie | Update | CDS | CDS upgrade success | The upgrade is nearly complete:
new daqd code is running
on fb
the fe/daqd timing issue |
|
|
6545
|
Wed Apr 18 11:54:31 2012 |
Jenne | Update | General | Power outage last night |
|
|
|
6544
|
Wed Apr 18 11:46:14 2012 |
Jenne | Update | General | Power outage last night |
|
|
|
6543
|
Wed Apr 18 10:05:40 2012 |
Jamie | Update | General | Power outage last night | All of the front-ends are back up and I've
been able to recover local control of all
of the opitcs (snapshots from saturday). |
|
|
6542
|
Wed Apr 18 08:53:50 2012 |
Jamie | Update | General | Power outage last night | Apparently there was a catastrophic power
failure last night. Bob says it took
out power in most of Pasadena. |
|
|
6541
|
Tue Apr 17 19:03:09 2012 |
Jamie | Update | CDS | CDS upgrade in progress | Upgrade progresses, but not complete.
There are some relatively minor issues, and
one potentially big issue. |
|
|
6540
|
Tue Apr 17 11:05:04 2012 |
Jamie | Update | CDS | CDS upgrade in progress | I am continuing to attempt to upgrade the
CDS system to RTS 2.5. Systems will
continue to be up and down for the rest of |
|
|
6539
|
Tue Apr 17 10:55:50 2012 |
Ryan | Update | Computers | Updating aLIGO Conlog |
|
|
|
6538
|
Mon Apr 16 14:37:01 2012 |
Den | Update | PEM | gur2_x |
|
|
|
6537
|
Mon Apr 16 09:44:54 2012 |
Jenne | Update | PEM | gur2_x |
|
|
|
6536
|
Mon Apr 16 09:10:37 2012 |
Den | Update | PEM | gur2_x | Already not for the first time I notice
that GUR2 readjusts its X zero position
|
|
|
6535
|
Sat Apr 14 00:19:35 2012 |
Suresh | Omnistructure | LSC | Optical Fibers for insitu RFPD characterisation | I have worked out the fibers
we need to get for the following distribution
scheme: |
|
|
6534
|
Fri Apr 13 16:09:43 2012 |
Suresh | Update | Computer Scripts / Programs | ACAD 2002 installed on C21530 | I have installed
ACAD 2002 on one of the Windows machines |
|
|
6533
|
Fri Apr 13 01:27:10 2012 |
Jenne | Update | SUS | Oplevs recentered | It's been a while since I think anyone
has done it, and several optics were pretty
far from centered, so I centered all of the |
|
|
6532
|
Thu Apr 12 23:52:49 2012 |
Jenne | Update | Locking | PRMI locked - 'bouncy' | I am locking some things, and have the
PRM aligned, and it will stay locked for
short periods of time, but as Kiwamu warned |
|
|
6531
|
Thu Apr 12 23:12:16 2012 |
Suresh | Update | IOO | Beam Profile measurement: IPPOS beam: Possible Clipping |
|
6x |
|
6530
|
Thu Apr 12 22:04:17 2012 |
Mike J. | Update | Computers | New Hysteresis Model & Plots | The new hysteresis model uses a triangle
wave with offset zero points as the position
function and a sinusoidal force function, |
|
|
6529
|
Thu Apr 12 20:56:07 2012 |
Den | Update | PEM | daq | GUR1 XYZ, GUR2 XYZ, MC_F channels are now
recorded at 256 Hz.
|
|
|
6528
|
Thu Apr 12 14:48:44 2012 |
Suresh | Update | SUS | local damping and WFS | WFS servo is moving
the MC mirror angles to minimise TEM01 and
TEM10 modes within the MC cavity. |
|
|
6527
|
Thu Apr 12 08:49:14 2012 |
Den | Update | SUS | local damping and WFS | I tried to figure out what can add noise
below 0.5 Hz to the MC_F. I compared MC1,
MC2, MC3 suspos, suspit, susyaw and susside |
6x |
|
6526
|
Thu Apr 12 01:17:56 2012 |
Suresh | Update | IOO | Beam Profile measurement: IPPOS beam: Possible Clipping | [Suresh, Jenne]
The
input beam is most probably being clipped |
|
|
6525
|
Thu Apr 12 00:40:45 2012 |
Jenne | Update | SUS | PRM, BS oplevs off | There's a beam dump after the HeNe on the
BS oplev table, since the IPPOS measurement
optics (steering mirrors) are in the way |
|
|
6524
|
Thu Apr 12 00:16:38 2012 |
Jenne | Update | Environment | Earthquake - moderate |
M4.7 - Santa Isabel, Mexico
2012-04-12 06:48:38 UTC
Mode |
|
|
6523
|
Wed Apr 11 22:48:39 2012 |
rana | Update | Environment | BLRMS | |
|
|
6522
|
Wed Apr 11 18:19:51 2012 |
Jenne | Update | IOO | Mode matching recollections and conclusions | Another histogram. This one allows
the MMT mirror positions to move, the MMT
incident angle for both curved optics to |
|
|
6521
|
Wed Apr 11 17:56:26 2012 |
Jenne | Update | General | Summary of things to figure out with the IFO | Questions:
Power recycling gain
* It should be ~40, |
|
|
6520
|
Wed Apr 11 16:33:16 2012 |
Jenne | Bureaucracy | General | 40m Meeting Action Items | Action
Items from Last Week:
(non-existant) |
|
|
6519
|
Wed Apr 11 14:34:48 2012 |
Jenne | Update | Environment | Plumbing guys are here |
|
|
|
6518
|
Wed Apr 11 12:25:11 2012 |
Ryan | Update | Computers | Updating aLIGO Conlog | Over the next few days, I will be working
on upgrading the aLIGO Conlog install to
include new bugfixes distributed by Patrick |
|
|
6517
|
Tue Apr 10 23:56:44 2012 |
rana | Update | Computers | Sensoray | Now that Mike has got the Sensoray working,
Jenne/Suresh should grab some new images
of the ETM cage as Keiko did so that we can |
|
|
6516
|
Tue Apr 10 17:02:29 2012 |
Jenne | Update | IOO | Mode matching recollections and conclusions | ...Mostly just recollections at this point.
I re-looked at the mode matching's
sensitivity to misplaced optics. Here |
|
|
6515
|
Tue Apr 10 13:42:54 2012 |
Jenne | Update | Environment | Plumbing guys are here | I don't know why, but they're looking around
on the roof, and inside our ceiling above
the bathrooms. |
|
|
6514
|
Tue Apr 10 11:08:29 2012 |
tara | Update | PSL | curved mirror behind AOM removed | We removed the curved mirror behind the
AOM (ROC=0.3m) on PSL table. The mirror is
now in PSL lab. See PSL:905 |
|
|
6513
|
Mon Apr 9 20:02:19 2012 |
Mike J. | Update | Computers | Sensoray | The highest resolution available is 720x480
pixels. Bit depth of captured images and
video is most likely 16 bits per pixel. Video |
|
|
6512
|
Mon Apr 9 18:18:14 2012 |
kiwamu | Update | LSC | DRMI time series | Here is a time series when the DRMI is
being locked.
You can see that the AS110 goes up |
|
|
6511
|
Mon Apr 9 17:03:38 2012 |
Den | Update | Environment | Lms vs Wiener | I tried to figure out why offline LMS filter
subtract seismic noise much better from MC_F
then the Wiener filter. I did the calculations |
|
|
6510
|
Mon Apr 9 15:09:34 2012 |
Jenne | Update | LSC | Locked MICH |
|
|
|
6509
|
Mon Apr 9 15:02:30 2012 |
Jenne | Update | LSC | Locked MICH | I was going to try some locking, but things
are a little too noisy.
Just so Kiwamu knows what I did today, |
|