| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
6397
|
Fri Mar 9 20:44:24 2012 |
Jim Lough | Update | CDS | DAQ restart with new ini file | DAQ reload/restart
was performed at about 1315 PST today. The
previous ini file was backed up as c1pem20120309.ini |
|
|
6404
|
Tue Mar 13 13:28:31 2012 |
Ryan Fisher | Update | CDS | DAQ restart with new ini file | Extra note: This was the ini file that was
edited:
/cvs/cds/rtcds/caltech/c1/chans/daq/C1PEM.ini |
|
|
16793
|
Thu Apr 21 10:35:23 2022 |
Koji | Update | CDS | DAQ seemed down | Yesterday, when I worked on the damping
servo, I found that any of the daqvtools
(ndscope, dtt, dataviewer,...) is not available. |
|
|
4171
|
Thu Jan 20 00:39:22 2011 |
kiwamu | HowTo | CDS | DAQ setup : another trick | Here
is another trick for the DAQ setup when you
add a DAQ channel associated with a new front |
|
|
16811
|
Mon Apr 25 17:24:06 2022 |
Anchal | Update | CDS | DAQ still down | I investigated this issue today. At first,
it seemed that only new suspension testpoints
are inaccessible. I was able to use diaggui |
|
|
3631
|
Thu Sep 30 21:55:31 2010 |
rana | Update | CDS | DAQ sys update | Its pretty exciting to see that Joe got
Alex to actually use the ELOG. Its a proof
that even rare events occur if you are patient |
|
|
3629
|
Thu Sep 30 17:11:01 2010 |
alex i | Update | CDS | DAQ system update | The frame builder is timed from the Symmetricom
GPS card now, which is getting the IRIGB
timecode from the freq. distribution amplifier |
|
|
3247
|
Mon Jul 19 21:47:36 2010 |
rana | Summary | DAQ | DAQ timing test | Since we now have a good measurement of
the phase noise of the Rb clock
Marconi locked to the Rb clock, I wanted |
|
|
3299
|
Tue Jul 27 16:03:36 2010 |
rana | Summary | DAQ | DAQ timing test |
|
|
|
16853
|
Sat May 14 08:36:03 2022 |
Chris | Update | DAQ | DAQ troubleshooting | I heard a rumor about a DAQ problem at
the 40m.
To investigate, I tried retrieving |
|
|
16854
|
Mon May 16 10:49:01 2022 |
Anchal | Update | DAQ | DAQ troubleshooting | [Anchal, Paco, JC]
Thanks Chris for the fix. We are
able to access the testpoints now but we |
|
|
16855
|
Mon May 16 12:59:27 2022 |
Chris | Update | DAQ | DAQ troubleshooting | It looks like the RFM problem started a
little after 2am on Saturday morning (attachment
1). It’s subsequent to what I did, |
|
|
3057
|
Tue Jun 8 20:52:25 2010 |
josephb | Update | PEM | DAQ up (for the moment) | As a test, I did a remote reboot of both
Megatron and c1iscex, to make sure there
was no code running that might interfere |
|
|
9422
|
Fri Nov 22 09:54:22 2013 |
Steve | Update | CDS | DAQ? | Jamie, I think the computers know that
you are away. c1lsc keeps going down.
The short time plots are correct. |
|
|
9423
|
Fri Nov 22 14:21:43 2013 |
Jamie | Update | Computer Scripts / Programs | DAQ? |
|
|
|
1737
|
Mon Jul 13 15:14:57 2009 |
Alberto | Update | Computers | DAQAWG | Today Alex came over, performed his magic
rituals on the DAQAWG computer and fixed
it. Now it's up and running again. |
|
|
1752
|
Wed Jul 15 17:18:24 2009 |
Jenne | DAQ | Computers | DAQAWG gone, now back | Yet again, the DAQAWG flipped out for an
unknowable reason. In order of restart
activities listed on the Wiki, I keyed the |
|
|
12152
|
Tue Jun 7 11:12:47 2016 |
jamie | Update | CDS | DAQD UPGRADE WORK UNDERWAY | I
am re-starting work on the daqd upgrade again
now. Expect the daqd |
|
|
12155
|
Tue Jun 7 20:49:50 2016 |
jamie | Update | CDS | DAQD work ongoing | Summary: new daqd code
running overnight test on fb1. Stability
issues persist. |
|
|
12156
|
Wed Jun 8 08:34:55 2016 |
jamie | Update | CDS | DAQD work ongoing | 38 restarts overnight. Problem definitely
not fixed. I'll be reverting back
to old daqd and fb this morning. Then |
|
|
10481
|
Wed Sep 10 02:26:20 2014 |
Jenne | Update | LSC | DARM -> AS55 optickle | Q has pointed out that we expect
a sign flip in the AS55 signal for DARM as
we reduce the CARM offset in the PRFPMI case. |
|
|
1549
|
Tue May 5 14:02:16 2009 |
rob | Update | LSC | DARM DC response varies with DARM offset | Note the effect of quadrature rotation
for small offsets. |
|
|
13799
|
Sun Apr 29 22:53:06 2018 |
gautam | Update | General | DARM actuation estimate | Motivation:
We'd like to know how much
actuation is required on the ETMs to lock |
|
|
13805
|
Tue May 1 19:37:50 2018 |
gautam | Update | General | DARM actuation estimate | Here is an updated plot - the main difference
is that I have added a trace that is the
frequency domain wiener filter subtraction |
|
|
13822
|
Mon May 7 16:23:06 2018 |
gautam | Update | General | DARM actuation estimate | Summary:
Using the Wiener Filter estimate
of the DARM disturbance we will have to cancel, |
|
|
1514
|
Fri Apr 24 03:57:30 2009 |
Yoichi | Update | Locking | DARM demod phase | Tonight, I was able to go up to arm power
= 40 by tweaking the DARM demodulation phase.
I think the DARM loop became unstable because |
|
|
1515
|
Fri Apr 24 04:38:49 2009 |
Yoichi | Update | Locking | DARM demod phase | [quote]Tonight, I was able to go up to arm
power = 40 by tweaking the DARM demodulation
phase.
|
|
|
1516
|
Fri Apr 24 11:34:32 2009 |
rob | Update | Locking | DARM demod phase | [quote][quote]Tonight, I was able to go up
to arm power = 40 by tweaking the DARM demodulation
phase.
|
|
|
1519
|
Fri Apr 24 17:26:57 2009 |
Yoichi | Update | Locking | DARM demod phase | [quote]
There's actually code in place in the LSC
to dynamically adjust the demod phase for |
|
|
10621
|
Fri Oct 17 03:05:00 2014 |
ericq | Update | LSC | DARM locked on DC Transmission difference | I've
been able to repeatedly get off of ALS and
onto (TRY-TRX)/(TRY+TRX). Nevertheless, lock |
|
|
10737
|
Wed Nov 26 22:24:28 2014 |
Jenne | Update | LSC | DARM loop improved, other work | [Jenne, Koji]
We have done several things this
evening, which have incrementally helped |
8x |
|
15350
|
Tue May 26 02:37:19 2020 |
gautam | Update | LSC | DARM loop measurement and fitting | Summary:
In order to estimate the free-running
DARM displacement noise, I measured the DARM |
|
|
10864
|
Wed Jan 7 09:44:33 2015 |
ericq | Update | LSC | DARM phase budget | As Jenne mentioned, I created a model of
the DARM OLG to see why we have so little
phase margin. However, it turns out I |
|
|
10868
|
Wed Jan 7 13:39:42 2015 |
Chris | Update | LSC | DARM phase budget | I think the dolphin and RFM transit times
are double-counted in this budget. As I understand
it, all IPC transit times are already built |
|
|
1575
|
Tue May 12 01:11:55 2009 |
Yoichi | Update | LSC | DARM response (DC Readout) | I measured the DARM response with DC readout.
This time, I first measured the open loop |
|
|
11606
|
Wed Sep 16 15:04:33 2015 |
ericq | Summary | LSC | DC PD Whitening Board Fixed |
|
|
|
10872
|
Wed Jan 7 15:53:01 2015 |
Jenne | Update | LSC | DC PD analog settings exposed | I have added another block to the LSC screen
(and made the corresponding sub-screen) to
expose the analog settings for the DC photodiodes. |
|
|
12710
|
Fri Jan 13 08:54:32 2017 |
Johannes | Update | General | DC PD installed | I installed a DC PD (Thorlabs PDA 520)
in the beam path to AS55. I placed a 2" |
|
|
16150
|
Fri May 21 00:15:33 2021 |
Koji | Update | Electronics | DC Power Strip delivered / stored | DC Power Strip Assemblies delivered and
stored behind the Y arm tube (Attachment
1) |
9x |
|
2056
|
Tue Oct 6 01:41:20 2009 |
rob | Update | Locking | DC Readout | Lock acquisition working well tonight.
Was able to engage CM boost (not superboost)
with bandwidth of ~10kHz. Also succeeded |
|
|
1544
|
Tue May 5 05:16:12 2009 |
Yoichi | Update | Locking | DC Readout and DARM response | Tonight, I was able to switch the DARM to
DC readout a couple of times.
But the lock was not as stable as the RF |
|
|
1545
|
Tue May 5 08:26:56 2009 |
rob | Update | Locking | DC Readout and DARM response | [quote]Tonight, I was able to switch the DARM
to DC readout a couple of times.
But the lock was not as stable as the RF |
|
|
15572
|
Tue Sep 15 17:04:43 2020 |
gautam | Update | Electronics | DC adaptors delivered | These were delivered to the 40m today and
are on Rana's desk
|
|
|
14776
|
Fri Jul 19 12:50:10 2019 |
gautam | Update | SUS | DC bias actuation options for SOS | Rana and I talked about some (genius)
options for the large range DC bias actuation |
|
|
12708
|
Thu Jan 12 17:31:51 2017 |
gautam | Update | CDS | DC errors | The IFO is more or less back to an operational
state. Some details:
The IMC mirror excess motion |
|
|
12715
|
Fri Jan 13 21:41:23 2017 |
Koji | Update | CDS | DC errors | I think I fixed the DC error issue
1. I added the leap second
(leapsecond ?) entry for 2016/12/31, 23:60:00 |
|
|
15735
|
Tue Dec 15 12:38:41 2020 |
gautam | Update | Electronics | DC power strip | I installed a DC power strip (24 V
variant, 12 outlets available) on the NW
upright of the 1X1 rack. This is for the |
|
|
15699
|
Thu Dec 3 10:46:39 2020 |
gautam | Update | Electronics | DC power strip requirements | Since we will have several new 1U / 2U
aLIGO style electronics chassis installed
in the racks, it is desirable to have a more |
|
|
4738
|
Wed May 18 15:54:50 2011 |
Koji | Update | RF System | DC power supplies for the RF generation box in place | [Koji, Steve]
DC power supplies for the RF generation
box are now in place. They are the top two |
|
|
4740
|
Wed May 18 17:06:39 2011 |
Suresh | Update | RF System | DC power supplies for the RF generation box in place |
I have checked the voltages on the
connector. They are okay and I have |
|