| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
6094
|
Fri Dec 9 14:33:16 2011 |
Alex Ivanov | Update | Adaptive Filtering | C1OAF |
|
|
|
6095
|
Fri Dec 9 15:14:41 2011 |
Den | Update | CDS | release 2.4 | Alex has created a 2.4 branch of the RCD.
Jamie, we can try to compile and install
it. As a test a did it for c1oaf, it compiles, |
|
|
6096
|
Fri Dec 9 15:49:24 2011 |
Jenne | Update | IOO | MC trans is way down | I was looking at the trends from the RAMmon,
since I did the EOM alignment yesterday,
and wanted to compare them to the MC trans, |
|
|
6097
|
Fri Dec 9 17:08:41 2011 |
Jenne | Update | RF System | Lots of current used in Rich's demod box | I checked the power regulators on the Rich
demod box (according to the schematic, D1000217). |
|
|
6098
|
Fri Dec 9 17:15:29 2011 |
Jenne | Update | IOO | MC trans is way down |
|
|
|
6099
|
Fri Dec 9 17:44:45 2011 |
Koji | Update | RF System | Lots of current used in Rich's demod box | Those asymmetric currents are same as what
I saw with the table top +/-18V supply. If
you really don't like it, there could be |
|
|
6100
|
Fri Dec 9 17:53:31 2011 |
Den | Update | Adaptive Filtering | C1OAF | [Jenne, Den]
AA filters for witness channels are
added to the oaf model. It is working now |
|
|
6101
|
Fri Dec 9 20:03:57 2011 |
Zach | Update | RF System | Lots of current used in Rich's demod box | D0902745-v5 (probably
the AP1053's):
|
|
|
6102
|
Sat Dec 10 05:27:43 2011 |
kiwamu | Update | Green Locking | status update of the Y arm green lock | Status
update of the Y arm green lock: |
|
|
6103
|
Sun Dec 11 17:28:36 2011 |
kiwamu | Update | Green Locking | status update of the Y arm green lock |
|
|
|
6104
|
Mon Dec 12 11:16:02 2011 |
Jenne | Update | RF System | Foam house on EOM | Foam house installed on EOM a few min ago.
We'll leave it until ~tomorrow, then try
out the heater loop. |
|
|
6105
|
Mon Dec 12 11:34:40 2011 |
Leo Singer | Summary | General | Some design parameters for a Stewart platform | At the suggestion of Rana and Koji, I have
worked out some design parameters for a Stewart
platform to be used as a vibration isolation |
|
|
6106
|
Mon Dec 12 13:02:08 2011 |
kiwamu | Update | CDS | daqd restarted | I have restarted the daqd process at 1:01
PM since I have added some new ALS's daq
channels. |
|
|
6107
|
Mon Dec 12 15:24:21 2011 |
Jenne | Update | PSL | PMC and MC were both crappy - now realigned | PMC trans was only ~0.79, where it should
be ~0.84 something. The MC was also
not stellar. |
|
|
6108
|
Mon Dec 12 16:30:17 2011 |
Jenne | Update | Computers | Did someone just do something to fb?? | Dataviewer couldn't connect to the framebuilder,
so I checked the CDS status screen, and all
the fb-related things on each model went |
|
|
6109
|
Mon Dec 12 16:57:38 2011 |
Jenne | Update | RF System | RAMmon, 4 day trend | EOM was aligned to minimize the 11 and
55 MHz peaks in the RAMmon PD the other day
(elog |
|
|
6110
|
Tue Dec 13 01:20:38 2011 |
Den | Update | Adaptive Filtering | Modifications to LSC, RFM models, added OAF model |
|
|
|
6111
|
Tue Dec 13 11:34:32 2011 |
Jenne | Update | RF System | RAMmon, 5 day trend | Now we've got another day of data, with
the foam box on for the last 24hrs.
First plot is a 5 day trend so you |
|
|
6112
|
Tue Dec 13 11:51:33 2011 |
Jamie | Update | Computers | Did someone just do something to fb?? |
|
|
|
6113
|
Tue Dec 13 16:31:40 2011 |
Zach | Update | IOO | PSL beam realigned into MC | The
MC coupling had become re-shittified. As |
|
|
6114
|
Tue Dec 13 18:56:23 2011 |
rana | Update | IOO | PSL beam realigned into MC |
Of course, looking at the MC
transmission os the important thing, but |
|
|
6115
|
Wed Dec 14 01:35:06 2011 |
Koji | Update | IOO | MC alignment craziness | ~11PM I came to the 40m and found the MC
is repeating "LOCK->WFS ON->UNLOCK"
sequence for ~2hours. |
|
|
6116
|
Wed Dec 14 12:18:11 2011 |
Zach | Update | RF System | heater reengaged | I
reengaged the heater this morning, to compare |
|
|
6117
|
Wed Dec 14 12:22:00 2011 |
Vladimir | HowTo | Computers | ligo_viewer installed on pianosa | I made a test installation of ligo_viewer
in
/users/volodya/ligo_viewer-0.5.0c |
|
|
6118
|
Wed Dec 14 14:07:48 2011 |
Koji | Update | IOO | MC alignment craziness | [Kiwamu Koji]
To check if the MC alignment is OK |
|
|
6119
|
Wed Dec 14 14:30:43 2011 |
Jenne | Update | RF System | LO for new demod box | The Rich demod box wants 10dBm for the
local oscillator inputs, so I measured the
values that we have coming out of the distribution |
|
|
6120
|
Wed Dec 14 14:40:53 2011 |
steve | Update | Green Locking | delay line bnc cable specs | The existingly used used Pasternack Enterprices
RG58 C/U cable lenght ~ 140 ft and the specs
are here at Atm1 |
|
|
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 |
|
|
|
6128
|
Sat Dec 17 01:56:16 2011 |
Koji | Summary | SUS | Hysteresis test | [Koji Kiwamu]
We wonder if the flakiness of MC2
comes from the suspension or not. |
|
|
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 |
|
|
6142
|
Wed Dec 21 14:23:08 2011 |
rana | Configuration | SUS | Hysteresis in suspensions? | While discussing the suspension hysteresis
measurements, Koji, Kiwamu, and I realized
that the suspension wire standoff is aluminum, |
|
|
6143
|
Wed Dec 21 14:41:22 2011 |
kiwamu | Summary | General | minutes of 40m meeting : short-term plan | Here is the Gantt chart we discussed in
the 40m meeting today.
Based on the discussions we had, |
|