| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
16663
|
Thu Feb 10 21:51:02 2022 |
Koji | Update | CDS | [Solved] Huge random numbers flowing into ETMX/ETMY ASC PIT/YAW | Huge random numbers are flowing into ETMX/ETMY
ASC PIT/YAW. Because of this, I could not
damp the ETMX/ETMY suspension at the beginning |
|
|
16664
|
Fri Feb 11 10:56:38 2022 |
Anchal | Update | CDS | [Solved] Huge random numbers flowing into ETMX/ETMY ASC PIT/YAW | Yeah, this is a known issue actually. We
go to ASC screen and manually swich off all
the outputs after every reboot. We haven't |
|
|
16666
|
Fri Feb 11 12:22:19 2022 |
rana | Update | CDS | [Solved] Huge random numbers flowing into ETMX/ETMY ASC PIT/YAW | you
can hand edit the autoBurt file which the
FE uses to set the values after boot up. |
|
|
16668
|
Fri Feb 11 17:07:19 2022 |
Anchal | Update | CDS | [Solved] Huge random numbers flowing into ETMX/ETMY ASC PIT/YAW | The autoBurt file for FE already has the
C1:ASC-ETMX_PIT_SW2 (and other channels for
ETMY, ITMX, ITMY, BS and for YAW) present, |
|
|
13351
|
Mon Oct 2 19:03:49 2017 |
gautam | Update | CDS | [Solved] c1ioo DC errors | This did the trick - I simply ran
sudo |
|
|
985
|
Tue Sep 23 13:25:07 2008 |
rob | Update | Locking | a bit better | I've been spending time working on the short
DOF loops (PRC,MICH,SRC) in an attempt to
make the
|
|
|
3112
|
Thu Jun 24 01:02:34 2010 |
Sharmilla, Rana and Kiwamu | Update | Green Locking | a channel for PPKTP temperature | We added
a channel on c1psl in order to monitor the |
|
|
3113
|
Thu Jun 24 06:49:29 2010 |
Aidan | Update | Green Locking | a channel for PPKTP temperature | Is this a setpoint temperature that we
can change by writing to the channel or is
it a readout of the actual temperature of |
|
|
4294
|
Tue Feb 15 02:13:16 2011 |
kiwamu | Summary | ASC | a daytime task : small signals on ETMX OL | Rana
and I found that the QPD for the optical
lever at X end are showing small signals. |
|
|
5369
|
Fri Sep 9 13:29:09 2011 |
kiwamu | Update | IOO | a history of PZT mirror | Something happened about 8 years ago.
Old
iLog entry by AJW (2003/Sep/8) |
|
|
4449
|
Mon Mar 28 17:06:15 2011 |
kiwamu | Update | Green Locking | a mixer school | In
the last week Matt and I modified the MFD |
|
|
4450
|
Mon Mar 28 18:13:32 2011 |
rana | Update | Green Locking | a mixer school | Using 2 dBm for a Level 7 mixer is so bogus,
that I will dismantle this as soon as I come
over. |
|
|
4451
|
Mon Mar 28 18:22:43 2011 |
kiwamu | Update | Green Locking | a mixer school | PLEASE DO
NOT DISMANTLE THE SETUP ! |
|
|
4923
|
Thu Jun 30 14:11:55 2011 |
kiwamu | Update | ABSL | a photo of ABSL setup on the AP table | Here
is a picture of the latest ABSL setup at
the east part of the AP table. |
|
|
4850
|
Tue Jun 21 20:35:50 2011 |
kiwamu | Update | LSC | a script to measure sensing matrix | Last
night I was making a script which will measure
the sensing matrix using the realtime LOCKIN |
|
|
4778
|
Wed Jun 1 21:56:43 2011 |
Koji | Update | General | aLIGO BBPD / Green PD final result | Here is the conclusive result for the
circuit configuration for aLIGO BBPD and
40m Green PD. |
|
|
4649
|
Fri May 6 01:27:12 2011 |
Koji | Summary | General | aLIGO BBPD / Green PD investigation | Minicircuits
ERA-5SM was used for the RF
amp of the BBPD. This amp is promising |
|
|
4658
|
Sat May 7 12:57:54 2011 |
Koji | Summary | General | aLIGO BBPD / Green PD investigation | The RF amplifier of the prototype BBPD
has been replaced from ERA-5SM to MAR-6SM. |
|
|
4676
|
Tue May 10 09:05:49 2011 |
Koji | Update | General | aLIGO BBPD / Green PD investigation | BBPD update
- The BBPD circuit has been constructed
on the aLIGO BBPD board |
|
|
13650
|
Thu Feb 22 16:11:14 2018 |
Koji | Update | General | aLIGO EOM crystal replacement | aLIGO
EOM crystal replacement
The entire operation has |
|
|
13720
|
Fri Mar 30 03:23:50 2018 |
Koji | Update | General | aLIGO EOM work | I have been working on the aux beat setup
on the PSL table between 9PM-3AM.
This work involved: |
|
|
9089
|
Fri Aug 30 01:01:28 2013 |
rana, nic | Summary | Computer Scripts / Programs | aLIGO Noise Budget code installed and running | Chris Wipf has been developing a new Noise
Budget code that allows us to use our existing
Simulink models to handle all of the noise |
|
|
15818
|
Thu Feb 18 18:05:04 2021 |
gautam | Update | SUS | aLIGO Sat Amp characterization | Before installation, I performed a bunch
of tests on the aLIGO sat amp. All the measurements
were made with the dummy suspension box substituting |
|
|
15819
|
Thu Feb 18 20:20:25 2021 |
Koji | Update | SUS | aLIGO Sat Amp characterization | Yeah, it's really inconsistent. You
had 35mA LED drive and the current noise
of the noisy channel was 5e-7 A/rtHz at 1Hz. |
|
|
15809
|
Tue Feb 16 14:56:44 2021 |
gautam | Update | SUS | aLIGO Sat Amp installed, powered | [jordan,
gautam]
Ran 60ft long cables from |
|
|
15814
|
Wed Feb 17 16:11:53 2021 |
gautam | Update | SUS | aLIGO Sat Amp installed, powered | There is some non-trivial sign flipping
in the sensors/coils in this new setup because
it is a hybrid one with the old interfacing |
|
|
15817
|
Thu Feb 18 15:33:21 2021 |
gautam | Update | SUS | aLIGO Sat Amp installed, powered and commissioned | The WFS servo was recommissioned. The matrix
can be tuned a bit more, but for now, I've
recovered the old performance and the alignment |
|
|
11438
|
Thu Jul 23 03:09:05 2015 |
ericq | Update | LSC | aLIGO demod board lives! | I'm a little mystified. Peeking inside
the aLIGO demod board, I saw that the reason
that two of the channels weren't working |
|
|
11468
|
Thu Jul 30 14:42:03 2015 |
ericq | Update | LSC | aLIGO demod board lives! | ALS is not currently
limited by the demod board or whitening electronics. |
|
|
15613
|
Mon Oct 5 14:01:41 2020 |
gautam | Update | Electronics | aLIGO demod boards stuffed and delivered | We received 20pcs of stuffed
demodulator
boards from Screaming Circuits today. |
|
|
7189
|
Wed Aug 15 10:40:16 2012 |
Den | Update | CDS | aa filters | The lack of AA filter for MCL signal is
RFM model strongly disturbed entering to
OAF signal |
|
|
9786
|
Mon Apr 7 15:26:32 2014 |
jamie, ericq | Update | CDS | aborted attempt to update c1sus machine with second CPU | This morning we attempted to replace the
c1sus front end machine with a spare that
had been given a second CPU, and therefore |
|
|
5670
|
Sat Oct 15 16:01:26 2011 |
kiwamu | Update | IOO | about LOCKIN module |
|
|
|
943
|
Thu Sep 11 23:28:35 2008 |
alberto | Update | General | abs cavity length experiment | The MC lost lock for some reason not related
to either the FSS or the PMC I'm done with
my measurement for tonight. I've shut the |
|
|
944
|
Fri Sep 12 11:09:20 2008 |
Alberto | Update | General | abs cavity length experiment | I'm leaving the lab for a couple of hours.
I shut the NPRO. The interferometer is available
to anyone. |
|
|
945
|
Sat Sep 13 23:13:01 2008 |
Alberto | Update | General | abs cavity length experiment | The Y arm was locked all time today but, suddenly,
this afternoon it lost lock and since then
I've been unable to restore it. I tried unsuccessfully |
|
|
656
|
Thu Jul 10 19:12:07 2008 |
Alberto | Update | General | abs cavity length measurement experiment | Yesterday morning, when I started, I found
the IFO beam on a different position and
the beam spot at the AS port looked very |
|
|
668
|
Mon Jul 14 19:15:43 2008 |
Alberto | Update | General | abs cavity length measurement experiment | Lately I've been dealing with the alignment
of the interferometer to have a good beam
spot at the AS port. Today the alignment |
|
|
669
|
Mon Jul 14 21:34:10 2008 |
Alberto | Update | General | abs cavity length measurement experiment | [quote]Lately I've been dealing with the alignment
of the interferometer to have a good beam
spot at the AS port. Today the alignment |
|
|
940
|
Wed Sep 10 19:53:53 2008 |
Alberto | Update | General | abs length experiment | Update of the last days work on the experiment
to measure the absolute length of the cavities.
|
|
|
3551
|
Thu Sep 9 11:31:54 2010 |
steve | Update | PEM | accelerometer cable connection | I turned off/on the power to the accelerometers
in order to re rout their connections. I
found cable connector body-nut #3 loose |
|
|
1696
|
Wed Jun 24 12:04:00 2009 |
Clara | Update | PEM | accelerometer clarification | When I said "MC1/MC2 accelerometers,"
I meant the entire three-axis accelerometer
set at each point. |
|
|
7562
|
Tue Oct 16 21:57:47 2012 |
Den | Update | PEM | accelerometers | All accelerometers are now at the table
behind 1X4, cables are near readout box. |
|
|
2119
|
Mon Oct 19 17:12:54 2009 |
jenne | Update | PEM | accelerometers and seismomters are all good. |
|
|
|
11950
|
Tue Jan 26 15:07:47 2016 |
Steve | Update | PEM | accelerometers moved to ETMX | Objective: measure the noise floor
on the optical table and the floor so we
can decide if the table needs better anchoring |
|
|
1613
|
Wed May 20 10:43:17 2009 |
steve | Omnistructure | Environment | accelerometers sensitivity |
|
|
|
747
|
Mon Jul 28 12:02:32 2008 |
Sharon | Update | | accelerometers settings | Jenne, Sharon
|
|
|
7407
|
Wed Sep 19 09:24:01 2012 |
Steve | Omnistructure | IOO | access connector at athmoshere |
|
|
|
7518
|
Wed Oct 10 10:55:56 2012 |
Steve | Omnistructure | IOO | access connector at athmoshere |
|
|
|
10473
|
Mon Sep 8 16:23:25 2014 |
Larry | HowTo | Computer Scripts / Programs | accessing 40m data remotely with python |
Attached is an example script showing
how to access 40m data remotely. The only |
|