| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
7076
|
Thu Aug 2 03:06:57 2012 |
Sasha | Update | Simulations | LS Plant (LSP) is officially ONLINE | My ls plant compiled!! The
RCG code can now be found in |
|
|
7075
|
Thu Aug 2 00:43:55 2012 |
Jenne | Update | ASS | Major cleanup of the ASS model | [Jamie, Jenne]
We are trying to figure out what
the story is with the ASS, and in order to |
|
|
7074
|
Wed Aug 1 22:37:21 2012 |
Jenne | Update | ASS | Filters installed in the ASS | As part of trying to figure out what is
going on with the ASS, I wanted to figure
out what filters are installed on which lockins. |
|
|
7073
|
Wed Aug 1 18:20:58 2012 |
Jamie | Update | LSC | Yarm recovered | [Jenne, Jamie]
We recovered lock and alignment of
the Y arm. TRY_OUT is now at ~0.9, |
|
|
7072
|
Wed Aug 1 17:04:22 2012 |
Jenne | Update | SUS | spare SRMU 03 optic moved |
|
|
|
7071
|
Wed Aug 1 16:38:46 2012 |
steve | Update | SUS | spare SRMU 03 optic moved | SOS optics prepared to be hanged are moved
from the South Flow Bench to S15 Clean Cabinet.
SRMU 03 (1-25-2010) specification |
|
|
7070
|
Wed Aug 1 15:14:20 2012 |
Jenne | Update | IOO | PSL Pointing QPD signals lost in late-June 2012 | I was looking into why we don't have any
light on the PSL pointing QPDs, and it turns
out that it has been this way since ~June |
|
|
7069
|
Wed Aug 1 15:02:29 2012 |
Jenne | Update | IOO | IP POS QPD centered | Jamie went out to look at IP POS, and the
beam was *way* off. Even though our
alignment is still rough, we're kind of close |
|
|
7068
|
Wed Aug 1 11:54:59 2012 |
Yaakov | Summary | STACIS | Geophone calibration and open loop gains | This week I've looked into finding an accurate
sensitivity for the geophones in the STACIS.
I found that when placing a geophone and |
|
|
7067
|
Wed Aug 1 11:50:49 2012 |
Jamie | Update | CDS | added input monitors to LSC_TRIGGER library part | I added an EPICS monitor to the input of
the LSC_TRIGGER part, to allow monitoring
the signal used for the trigger. I |
|
|
7066
|
Wed Aug 1 11:46:16 2012 |
Masha | Summary | General | Week Summary | A lot of my time this week was spent
struggling with implementing my neural network
code in Simulink in order to experiment with |
|
|
7065
|
Wed Aug 1 10:45:38 2012 |
Sasha | Summary | Simulations | SURF - Week 6 - Summary | This week, I worked on transferring my
Simulink
simulation to the RCG |
|
|
7064
|
Wed Aug 1 10:38:11 2012 |
Eric | Summary | General | SURF Update | Since my last update I have modified the DARM control
loop model to the extent that it resembles |
|
|
7063
|
Wed Aug 1 10:07:16 2012 |
Liz | Update | Computer Scripts / Programs | Week 7 Update | Over the past week, I have continued refining the summary |
|
|
7062
|
Tue Jul 31 20:59:35 2012 |
Jamie | Update | CDS | fixing up MEDM snapshots | I've started to try to fix all the old
non-working medm snapshots. I've made
a new snapshot directory, and some new snapshot |
|
|
7061
|
Tue Jul 31 19:34:55 2012 |
Koji | Update | STACIS | Open loop gains and block diagram | With your definition of the open loop gain,
G=+1 is the condition to have singularity
in a closed loop transfer function 1/(1-G). |
|
|
7060
|
Tue Jul 31 18:59:59 2012 |
Jamie | Update | CDS | updated medm paths for MISC (IFO,CDS,VIDEO), IFO alignment scripts updated accordingly | In an attempt to clean up the medm situation,
I did a bunch of further rearrangement and
cleanup. Instead of having c1ifo, I |
|
|
7059
|
Tue Jul 31 15:33:17 2012 |
Masha | Configuration | PEM | Gurlap Pin Map | I checked the connections specified in
the old Gulap
Pin Map and found that they do not correspond |
|
|
7058
|
Tue Jul 31 15:24:53 2012 |
Yaakov | Update | STACIS | Open loop gains and block diagram | First, a quick note on the PZT I thought
I killed- it was most likely something in
the high voltage amplifier that broke, since |
|
|
7057
|
Tue Jul 31 15:17:58 2012 |
Jamie | Update | CDS | c1ifo medm screens checked into CSD userapps svn | I moved the medm/c1ifo directory into the
CDS userapps svn at cds/c1/medm/c1ifo, and
then linked it back into the medm directory: |
|
|
7056
|
Tue Jul 31 08:01:22 2012 |
steve | Update | VAC | cc1 switched |
|
|
|
7055
|
Tue Jul 31 00:27:52 2012 |
Den | Update | PEM | trillium | We have a Trillium for several days from
Vladimir. I've put seismometer inside the
foam box on linolium. I was not able to level |
|
|
7054
|
Mon Jul 30 22:52:51 2012 |
Yaakov | Update | STACIS | Geophone calibration | Tonight I looked at the signal from a geophone
and accelerometer side by side, in order
to see if they show the same ground motion |
7x |
|
7053
|
Mon Jul 30 17:24:45 2012 |
Yaakov | Update | STACIS | Revised sensor noise plot; dead PZT | The geophone noise in my last eLog was
taken before
any amplification of the signal, but |
|
|
7052
|
Mon Jul 30 16:05:36 2012 |
Den | Update | digital noise | filter checker | We decided to write a script that
will check online filters for digital noise.
One method can be implemented using the following |
|
|
7051
|
Mon Jul 30 15:49:16 2012 |
steve | Update | VAC | cc1 switched |
|
|
|
7050
|
Mon Jul 30 14:24:25 2012 |
Den | Update | digital noise | biquad key is working |
|
|
|
7049
|
Mon Jul 30 12:38:45 2012 |
Jamie | Update | CDS | Move to RCG 2.5 tag release | I moved the RCG to the advLigoRTS-2.5 tag:
controls@c1iscey ~ 0$ ls -al
/opt/rtcds/rtscore/release
lrwxrwxrwx 1 |
|
|
7048
|
Mon Jul 30 10:05:29 2012 |
Jenne | Update | PSL | PMC is still not fixed |
|
|
|
7047
|
Mon Jul 30 09:00:18 2012 |
steve | Update | PSL | PMC is still not fixed | The PMC was locking right the way, but
it's transmission would not go up.
Finally I get it back up by moving the "sticky" |
|
|
7046
|
Fri Jul 27 16:32:17 2012 |
Jamie | Update | CDS | RCG bug exposed by simple c1tst model | As Den mentioned in 7043,
attempting to run the c1tst model was causing
the entire c1iscey machine to crash. |
|
|
7045
|
Fri Jul 27 14:30:49 2012 |
Jamie | Update | digital noise | biquad key is working | What is "DQF"? Is that
the biquad? And what is the difference
between DF1 and DF2? Why don't you |
|
|
7044
|
Fri Jul 27 14:28:36 2012 |
steve | Update | VAC | cold cathode gauges | Our cold
cathode 423 gauges are 10 years old.
They get insulated by age and show no ionization |
|
|
7043
|
Fri Jul 27 14:27:14 2012 |
Jamie | Update | CDS | new c1tst model for testing RCG code |
|
|
|
7042
|
Thu Jul 26 21:31:44 2012 |
Den | Update | digital noise | online biquad works |
|
|
|
7041
|
Thu Jul 26 17:39:49 2012 |
Den | Update | digital noise | biquad key is working | I've filtered a 1 Hz sin wave excitation
with a notch filter inside c1sus and c1rfm
models. The biquad key is switched on in |
|
|
7040
|
Thu Jul 26 16:08:59 2012 |
Yaakov | Update | STACIS | Noise plot update | I have a tentative noise plot for the STACIS
that includes accelerometer noise, geophone
noise, and platform motion with the STACIS |
|
|
7039
|
Thu Jul 26 15:43:03 2012 |
rana | Update | LSC | modelled ringdown | You cannot use the digital system for this.
You hook up a scope to the transmitted light
as well as the incoming light (after the |
|
|
7038
|
Thu Jul 26 13:10:51 2012 |
janosch | Update | LSC | modelled ringdown | We fitted shutter and ringdown functions
to the ringdown data. It is not perfectly
clear how the power change due to the shutter |
|
|
7037
|
Thu Jul 26 12:10:28 2012 |
Den | Update | CDS | new c1tst model for testing RCG code |
|
|
|
7036
|
Thu Jul 26 10:22:03 2012 |
Den | Update | digital noise | notch, lowpass filters |
|
|
|
7035
|
Thu Jul 26 02:44:17 2012 |
Jenne | Update | IOO | Centering the MCR camera | [Yaakov, Jenne]
The
short version: |
|
|
7034
|
Wed Jul 25 23:03:22 2012 |
rana | Update | digital noise | notch, lowpass filters | If the problem is the precision in DTT,
then why would the noise change when the
corner frequency of the filter is changed? |
|
|
7033
|
Wed Jul 25 22:16:36 2012 |
Koji | Update | LSC | ringdown measurement | Is this the step response of the single
pole low pass???
It should have an exponential decay, |
|
|
7032
|
Wed Jul 25 17:35:44 2012 |
Liz | Update | Computer Scripts / Programs | Summary Pages are in the right place! | The summary pages can now be accessed from
the "Daily Summary" link under
LOGS on the 40 meter Wiki page. |
|
|
7031
|
Wed Jul 25 16:55:01 2012 |
Den | Update | digital noise | notch, lowpass filters | Direct Form 2 is noisy in the first
test. This is the one similar to Matt's in
his presentation. Input signal was a sine |
6x |
|
7030
|
Wed Jul 25 16:31:01 2012 |
Jenne | Update | LSC | Yarm green locking to arm - PDH box saturating |
|
|
|
7029
|
Wed Jul 25 15:33:55 2012 |
janosch | Update | LSC | ringdown measurement | We did our first ringdown measurement on
the Y arm. First we tried to keep the arm
locked in green during the ringdown, but |
|
|
7028
|
Wed Jul 25 14:35:45 2012 |
Sasha | Summary | Simulations | SURF - Week 5 - Summary |
|
|
|
7027
|
Wed Jul 25 12:00:21 2012 |
Yaakov | Update | STACIS | Weekly update | The past few days I've been working on
making a noise budget for the |
|