| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
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 |
|
|
4772
|
Tue May 31 14:29:00 2011 |
jzweizig | Update | CDS | frames | There seems to be something strange going
on with the 40m frame builder.
Specifically, there is a gap in the |
|
|
28
|
Mon Oct 29 23:25:42 2007 |
tobin | Software Installation | CDS | frames mounted | I mounted the frames directory on mafalda
and linux3. It's intentionally not listed
in the /etc/fstab so that an fb crash won't |
|
|
4887
|
Sun Jun 26 18:35:16 2011 |
rana | HowTo | SUS | free swing all optics | I used scripts/SUS/freeswing-all.csh to
give the optics a kick and then turn off
their watchdogs and collect the free swinging |
|
|
4892
|
Tue Jun 28 01:18:53 2011 |
rana | HowTo | SUS | free swing all optics | Chris Wipf tells me that the EPICS Mutex
Jumbo Mumbo can be overcome by upgrading
our EPICS. We should get one of Jamie's assistants |
|
|
5204
|
Fri Aug 12 04:11:13 2011 |
kiwamu | Update | SUS | free swinging | Excited all optics - -
Fri Aug 12 03:34:12 PDT 2011
997180467 |
|
|
5220
|
Sat Aug 13 02:11:33 2011 |
kiwamu | Update | SUS | free swinging again | I am leaving all of the suspensions
free swinging. They will automatically recover |
|
|
5234
|
Sun Aug 14 22:48:37 2011 |
kiwamu | Update | SUS | free swinging again | Excited all optics
Sun Aug 14 20:22:33 PDT 2011
997413768 |
|
|
5246
|
Tue Aug 16 04:50:17 2011 |
kiwamu | Update | SUS | free swinging again | Since Suresh and I changed the DC
biases on most of the suspension, the free
swingning spectra will be different from |
|
|
2405
|
Sun Dec 13 17:43:10 2009 |
kiwamu | Update | SUS | free swinging spectra (vacuum) | The free swinging spectra of ITMs, ETMs,
BS, PRM and SRM were measured under the vacuum-condition.
The attachment are measured spectra. |
|
|
2368
|
Tue Dec 8 23:13:32 2009 |
kiwamu | Update | SUS | free swinging spectra of ETMY and ITMX | The free swinging spectra of ETMY and ITMX
were taken after today's wiping, in order
to check the test masses. |
|
|
2369
|
Wed Dec 9 00:23:28 2009 |
Koji | Update | SUS | free swinging spectra of ETMY and ITMX | Where
is the plot for the trend?
It |
|
|
5282
|
Tue Aug 23 01:09:44 2011 |
kiwamu | Update | SUS | free swinging test | excited all the optics ---
Tue Aug 23 01:08:00 PDT 2011
998122096 |
|
|
5287
|
Tue Aug 23 11:57:22 2011 |
kiwamu | Update | SUS | free swinging test during lunch time | excited all the optics. (with ITMY WTF
OFF)
Tue Aug 23 11:52:52 PDT 2011 |
|
|
5290
|
Tue Aug 23 17:21:45 2011 |
kiwamu | Update | SUS | free swinging test for ETMY |
Excited ETMY
Tue Aug 23 17:20:45 PDT 2011 |
|
|
5375
|
Sat Sep 10 02:28:45 2011 |
kiwamu | Update | SUS | free swinging test in vacuum condition | All the optcs were excited
Sat Sep 10 02:14:11 PDT 2011
999681266 |
|
|
5421
|
Thu Sep 15 18:12:21 2011 |
Jenne | Update | SUS | free swinging test in vacuum condition |
|
9x |
|
5480
|
Tue Sep 20 15:23:16 2011 |
Jenne | Update | SUS | free swinging test in vacuum condition | This is using data for the SRM from: 20
Sept 2011 03:20:00 PDT = 1000549215
You can see that there are still |
|
|
5481
|
Tue Sep 20 15:39:57 2011 |
Koji | Update | SUS | free swinging test in vacuum condition | Can't we use Yuta's auto-Q adjust script?
http://nodus.ligo.caltech.edu:8080/40m/3723
Edit by KI : |
|
|
5346
|
Tue Sep 6 17:56:12 2011 |
Jenne | Update | SUS | free swinging test on ITMX |
|
|
|
5345
|
Tue Sep 6 17:48:57 2011 |
kiwamu | Update | SUS | free swinging test on ITMY | Tue Sep 6 17:48:02 PDT 2011
999391697
|
|
|
5594
|
Sun Oct 2 02:21:27 2011 |
kiwamu | Update | SUS | free swinging test once more | The following optics were kicked:
MC1 MC2 MC3 ETMX ETMY ITMX ITMY PRM
SRM BS |
|
|
5240
|
Mon Aug 15 17:23:55 2011 |
jamie | Update | SUS | freeswing script updated | I have updated the freeswing scripts, combining
all of them into a single script that takes
arguments to specify the optic to kick: |
|
|
6311
|
Fri Feb 24 04:12:44 2012 |
kiwamu | Update | SUS | freeswing test | The following optics were kicked:
MC1
MC2 MC3 ETMX ETMY ITMX ITMY PRM SRM BS
Fri
Feb 24 04:11:15 PST 2012
1014120690
|
|
|
2737
|
Wed Mar 31 02:57:48 2010 |
kiwamu | Update | Green Locking | frequency counter for green PLL | Rana
found that we had a frequency counter SR620
which might be helpful for lock acquisition |
|
|
2741
|
Wed Mar 31 12:30:31 2010 |
rana | Update | Green Locking | frequency counter for green PLL | Its a good measurement - you should adjust
the input range of the 620 using the front
panel 'scale' buttons to see how the noise |
|
|
2751
|
Thu Apr 1 15:21:12 2010 |
rana | Update | Green Locking | frequency counter for green PLL |
|
|
|
2718
|
Sun Mar 28 17:28:26 2010 |
matt, kiwamu | Update | Green Locking | frequency discriminator for green PLL | Last Friday, Matt made a frequency discriminator
circuit on a bread board in order |
6x |
|
2728
|
Mon Mar 29 15:19:33 2010 |
mevans | Update | Green Locking | frequency discriminator for green PLL | Thanks for the great entry!
In order to make this work for higher
frequencies, I would add Hartmut's suggestion |
|
|
6553
|
Fri Apr 20 23:02:25 2012 |
Den | Update | Adaptive Filtering | frequency domain filter | DFT-LMS is a frequency domain adaptive
filter that demonstrates faster convergence
compared to the time-domain LMS filter. |
|
|
7000
|
Sat Jul 21 18:04:02 2012 |
Den | Update | Adaptive Filtering | frequency domain filter | I've implemented online frequency domain
filter and applied it to MC_F.
|
|
|
2076
|
Fri Oct 9 16:36:13 2009 |
rob | Update | IOO | frequency noise problem | I used the XARM as a reference to measure
the frequency noise after the MC. It's
huge around 4kHz--hundreds of times larger |
|
|
2172
|
Tue Nov 3 03:45:04 2009 |
rob | Update | IOO | frequency noise problem |
|
|
|
2357
|
Sat Dec 5 17:34:30 2009 |
rob | Update | IOO | frequency noise problem | There's a large broadband increase in the
MC_F spectrum. I'm not totally sure
it's real--it could be some weird bit-swapping |
|
|
2359
|
Sat Dec 5 22:31:52 2009 |
rob | Update | IOO | frequency noise problem |
|
|
|
14086
|
Thu Jul 19 04:44:09 2018 |
Annalisa, Terra | Summary | Thermal Compensation | frequency shift observed with heating! | Annalisa, Gautum, Koji, Terra
Summary: with
the reflector setup, we measured a frequency |
|
|
9224
|
Wed Oct 9 15:00:48 2013 |
Steve | Update | PEM | freshmen tour | [Alan, Koji, Manasa]
Record number of 50 freshmen were
given tour of the 40m this afternoon. |
|
|
7493
|
Fri Oct 5 16:21:48 2012 |
Steve | Update | General | freshmen visiters | 40 plus freshmen visited the 40m today |
|
|
6203
|
Tue Jan 17 02:27:49 2012 |
kiwamu | Update | LSC | fringe tests : all the suspensions are innocent | I did a quick test to check a hypothesis
that PRM is interfering with some other optics
in the single bounce configuration. |
|
|
6088
|
Thu Dec 8 11:59:53 2011 |
Zach | Update | RF System | fringing indeed | Here is a trend of 11 & 55 I&Q,
along with the EOM temperature and PSL RMTEMP
signals. |
|
|
7197
|
Wed Aug 15 17:23:22 2012 |
jamie | Update | CDS | front end IOP models changed to reflect actual physical hardware | As Rolf pointed out when he was here yesterday,
all of our IOPs are filled with parts for
ADCs and DACs that don't actually exist in |
|
|
9074
|
Tue Aug 27 19:34:36 2013 |
Jamie | Configuration | CDS | front end IPC configuration | So the IPC situation on the front end network
is not so great right now. For various
no-longer-valid reasons, c1lsc had no RFM |
|
|
9076
|
Tue Aug 27 20:43:34 2013 |
Koji | Configuration | CDS | front end IPC configuration | The reason we had the PCIe/RFM system was
to test this mixed configuration in prior
to the actual implementation at the sites. |
|
|
9086
|
Wed Aug 28 19:47:28 2013 |
jamie | Configuration | CDS | front end IPC configuration |
|
|
|
13138
|
Mon Jul 24 19:28:55 2017 |
Jamie | Update | CDS | front end MX stream network working, glitches in c1ioo fixed | MX/OpenMX
network running
Today I
got the mx/open-mx networking working for |
|
|
3292
|
Mon Jul 26 12:31:36 2010 |
kiwamu | Update | CDS | front end machine for the X end | A brief
report about the new front end machine "C1ISCEX"
installed on the X end (old Y end). |
|
|
16302
|
Thu Aug 26 10:30:14 2021 |
Jamie | Configuration | CDS | front end time synchronization fixed? | I've been looking at why the front
end NTP time synchronization did not seem
to be working. I think it might not |
|
|
2982
|
Tue May 25 16:32:26 2010 |
kiwamu | HowTo | Electronics | front ends are back | [Alex, Joe, Kiwamu]
Eventually |
|
|
7477
|
Thu Oct 4 14:04:21 2012 |
jamie | Update | CDS | front ends back up | All the front end machines are back up
after the outage. It looks like none
of the front end machines came back up once |
|
|
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, |
|