| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
6121
|
Wed Dec 14 16:19:46 2011 |
Zach | Update | RF System | LO for new demod box | I'm not sure I agree with your conversions,
BUT:
The IQ boards use a PE4140, fancy |
|
|
6122
|
Wed Dec 14 18:06:39 2011 |
Zach | Update | RF System | LO for new demod box | Actually, the LO inputs to the IQ boards
have AP1053 (Cougar) amps on them. These |
|
|
6123
|
Wed Dec 14 19:59:12 2011 |
Jenne | Update | RF System | LO for new demod box |
|
|
|
6124
|
Thu Dec 15 11:47:43 2011 |
jamie | Update | CDS | RTS UPGRADE IN PROGRESS | I'm now in the
middle of upgrading the RTS to version 2.4.
All
RTS systems will be down until futher notice... |
|
|
6125
|
Thu Dec 15 22:22:18 2011 |
jamie | Update | CDS | RTS upgrade aborted; restored to previous settings | Unfortunately, after working on it all
day, I had to abort the upgrade and revert
the system back to yesterday's state. |
|
|
6126
|
Fri Dec 16 13:29:15 2011 |
kiwamu | Update | Green Locking | Y arm noise budget : 60Hz line noise is killing us | Along with development of the automation
script, my goals last night were :
(1) Take |
|
|
6127
|
Sat Dec 17 00:00:03 2011 |
kiwamu | Update | Green Locking | 60 Hz line nose gone |
|
|
|
6129
|
Sat Dec 17 03:59:32 2011 |
kiwamu | Update | SUS | Aborted Hysteresis test |
|
|
|
6130
|
Sat Dec 17 11:53:46 2011 |
Zach | Update | SUS | Aborted Hysteresis test | Do you guys have timestamps for when you
started/ended the test? I have been trying
to take some long-term RAM data but keep |
|
|
6131
|
Sat Dec 17 12:41:46 2011 |
Koji | Update | SUS | Aborted Hysteresis test | The test was from: 2011-12-17 09:48 to
11:49 (UTC).
This corresponds to the period from |
|
|
6132
|
Sun Dec 18 16:16:55 2011 |
kiwamu | Update | SUS | Another trial of Hysteresis test | Koji has modified the script for the hysteresis
measurement.
A |
|
|
6133
|
Sun Dec 18 18:45:22 2011 |
kiwamu | Update | Green Locking | Y arm ALS : time series and noise budget | As I said in the previous entry (#6126)
my current goals were : |
|
|
6134
|
Sun Dec 18 19:56:00 2011 |
kiwamu | Update | SUS | Another trial of Hysteresis test | The measurement finished at ~ 21:50
PT.
|
|
|
6135
|
Sun Dec 18 23:00:22 2011 |
kiwamu | Update | SUS | oplve recenterd | I have recentered the oplev beams, including
BS, ITMs and ETMs. |
|
|
6136
|
Mon Dec 19 01:54:35 2011 |
kiwamu | Update | SUS | another trial of hystersis test | Another hysteresis test has begun at 1:50
PT, Dec/19.
It will finish after 3 or 4 hours. |
|
|
6137
|
Mon Dec 19 17:17:02 2011 |
Den | Update | Adaptive Filtering | filter tap dependence | Online filter diverges. I did offline simulations
with current c-code. Offline filter also
diverges, even in the simplest case |
|
|
6138
|
Mon Dec 19 23:50:23 2011 |
Zach | Update | RF System | RAMmon | I have been looking at the swings in the
RAMmon channels since the heater was reengaged,
to compare them to the data from beforehand |
|
|
6139
|
Tue Dec 20 15:49:21 2011 |
steve | Update | PEM | optical table top | 3/4 " thick colored acrylic material
will be used in this air tight design. Surgical
tubing for o-ring. We may have to put an |
|
|
6140
|
Wed Dec 21 03:38:14 2011 |
kiwamu | Update | Green Locking | Y arm ALS : automation script 80 % done | Scripting
of the single arm automated lock script is
80% done. |
|
|
6141
|
Wed Dec 21 04:29:01 2011 |
kiwamu | Update | Green Locking | Power Recycled Single Arm | I made the
first trial of locking a Power-recycled single |
|
|
6144
|
Wed Dec 21 16:55:30 2011 |
kiwamu | Update | Green Locking | Power Recycled Single Arm | I did some brief parameter checks
for the power-recycled single arm which I
have done yesterday.
The |
|
|
6145
|
Thu Dec 22 19:15:22 2011 |
kiwamu | Update | Green Locking | rearrangement of PSL green optics | As
planed (#6143 |
|
|
6146
|
Thu Dec 22 20:49:33 2011 |
Koji | Update | IOO | Limitter activated for WFS servos | I set the limitters of the MC WFS servos
not to inject the feedback more than 2000.
The residual of the WFS shakes the |
|
|
6147
|
Fri Dec 23 01:07:41 2011 |
kiwamu | Update | Green Locking | rearrangement of PSL green optics part II | After
I did a fine alignment of the X green beam
path on the PSL table, the X arm beat-note |
|
|
6149
|
Mon Dec 26 12:04:41 2011 |
kiwamu | Update | CDS | c1gcy.ini hand edited | I have edited c1scx.ini by hand in order
to acquire some green locking related channels.
Somehow |
|
|
6150
|
Mon Dec 26 14:01:45 2011 |
kiwamu | Update | LSC | multiple-LOCKIN newly added | The multiple
LOCKIN module has been newly added on the |
|
|
6151
|
Tue Dec 27 16:56:15 2011 |
kiwamu | Update | LSC | Scmitt trigger installed | The old
trigger system has been replaced by Schmitt |
|
|
6152
|
Tue Dec 27 22:17:56 2011 |
kiwamu | Update | LSC | multiple-LOCKIN new screens | Some
new screens have been made for the new multiple-LOCKIN
system running on the LSC realtime controller. |
|
|
6153
|
Tue Dec 27 23:03:56 2011 |
kiwamu | Update | PSL | PMC realigned | I have realigned the steering mirrors for
PMC because the transmitted light had been
at ~ 0.741 |
|
|
6154
|
Wed Dec 28 14:13:16 2011 |
kiwamu | Update | Green Locking | ALS feedback on MC2 | I
added an ALS feedback path on the MC2 suspension
and this path will enable us to stabilise |
|
|
6155
|
Fri Dec 30 02:16:48 2011 |
kiwamu | Update | Green Locking | Yarm ALS : high frequency noise reduced | The
high frequency noise, which has been a dominant
noise above 30 Hz in the Y arm ALS ( |
|
|
6156
|
Fri Dec 30 22:05:16 2011 |
kiwamu | Update | LSC | power normalization in LSC | Now a power
normalization is doable for the LSC error |
|
|
6157
|
Tue Jan 3 15:45:04 2012 |
Jenne | Update | Computers | FB? | Is there a reason the framebuilder status
light is red for all the front ends?
Also, I reenabled PRM watchdog. |
|
|
6158
|
Tue Jan 3 15:48:39 2012 |
kiwamu | Update | LSC | power normalization in LSC | It
turned out that the power normalization need
a modification. |
|
|
6159
|
Tue Jan 3 15:49:27 2012 |
Jamie | Update | Computers | possible front-end timing issue |
|
|
|
6160
|
Tue Jan 3 17:25:27 2012 |
Koji | Update | PSL | Found the laser was off | I found the PSL laser has been off for
four hours. Nobody seemed to know why.
I just turned it on and it is now |
|
|
6161
|
Tue Jan 3 17:46:38 2012 |
Updated Stewart platform design requirements | Update | General | Updated design requirements for a Stewart platform | I updated the design requirements for the
Stewart platform. I weighed the unloaded
"dirty" SOS that was sitting on |
|
|
6163
|
Tue Jan 3 20:42:05 2012 |
Leo Singer | Update | General | Actuators for Stewart platform | I checked on the two single-axis
shakers that are present at the 40m that
Steve pointed out: |
|
|
6164
|
Wed Jan 4 00:43:06 2012 |
kiwamu | Update | IOO | MC became flaky | I
don't know what exactly is going on, but
MC became flaky and it's been frequently |
|
|
6165
|
Wed Jan 4 02:43:40 2012 |
rana | Update | General | Actuators for Stewart platform |
|
|
|
6166
|
Wed Jan 4 03:03:24 2012 |
kiwamu | Update | LSC | locking activity tonight and beyond | Last night and tonight, I was doing
a kind of rehabilitation -- locking PRMI
and DRMI with the new trigger system.
|
|
|
6167
|
Wed Jan 4 05:02:58 2012 |
kiwamu | Update | LSC | Sidebands measurement at POP | Just
a quick report:
I did |
|
|
6168
|
Wed Jan 4 09:06:50 2012 |
steve | Update | Computers | possible front-end timing issue |
|
|
|
6170
|
Wed Jan 4 16:22:30 2012 |
kiwamu | Update | LSC | power normalization in LSC : modification done | The
dynamic power normalization system has been
modified such that the normalization happen |
|
|
6171
|
Wed Jan 4 16:40:52 2012 |
Jamie | Update | Computers | front-end fb communication restored | Communication between the front end models
and the framebuilder has been restored.
I'm not sure exactly what the issue was, |
|
|
6172
|
Thu Jan 5 09:08:48 2012 |
steve | Update | General | framebuilder is back | Dataviewer is recovered after heavy new
year party. |
|
|
6173
|
Thu Jan 5 09:59:27 2012 |
Jamie | Update | CDS | RTS/RCG/DAQ UPGRADE TO COMMENCE | RTS/RCG/DAQ UPGRADE
TO COMMENCE
I will be attempting
(again) to upgrade the RTS, including the |
|
|
6174
|
Thu Jan 5 20:40:21 2012 |
Jamie | Update | CDS | RTS upgrade aborted; restored to previous settings; fb symmetricom card failing? | After running into more problems with the
upgrade, I eventually decided to abort todays
upgrade attempt, and revert back to where |
|
|
6175
|
Fri Jan 6 01:00:56 2012 |
kiwamu | Update | CDS | c1scx out of sync | Both
the c1scx and its IOP realtime processes
became out of sync. |
|
|
6176
|
Fri Jan 6 11:49:13 2012 |
Jamie | Update | CDS | framebuilder taken offline to diagnose problem with symmetricom timing card | Alex and I have taken the framebuilder
offline to try to see what's wrong with the
symmetricom card. We have removed the |
|