ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
10348
|
Thu Aug 7 16:47:35 2014 |
ericq | Update | SUS | Oplev Checkup | I noticed some weird behavior on
the ETMY oplev that led me to check them
all out. |
|
10350
|
Fri Aug 8 11:22:35 2014 |
steve | Summary | SUS | oplev laser summary |
2005 |
|
10361
|
Mon Aug 11 08:04:01 2014 |
Steve | Update | SUS | ETMX damping restored | |
|
10362
|
Mon Aug 11 10:23:39 2014 |
steve | Summary | SUS | oplev laser summary updated |
|
|
10394
|
Thu Aug 14 22:16:02 2014 |
Jenne | Update | SUS | Violin Mode filters for ETMs | The instigator of this was that we were
seeing ring-ups of ETMs during our ALS locks
this evening. We measured the ETMY |
|
10459
|
Fri Sep 5 15:28:38 2014 |
Steve | Update | SUS | HeNe laser test preparation | The SRM qpd was moved to accommodate the
HeNe laser qualification test for LIGO Oplev
use. |
   |
10461
|
Fri Sep 5 16:25:36 2014 |
Steve | Update | SUS | center ITMY oplev |
|
|
10466
|
Mon Sep 8 07:50:40 2014 |
Steve | Update | SUS | PRM damping restored | |
|
10475
|
Tue Sep 9 08:22:28 2014 |
Steve | Update | SUS | HeNe laser test preparation |
|
|
10479
|
Tue Sep 9 16:59:32 2014 |
Steve | Update | SUS | HeNe laser test preparation |
|
|
10488
|
Wed Sep 10 14:58:58 2014 |
Jenne | Update | SUS | OpLev test: New channels | Steve and EricG are moving their oplev
test for aLIGO over to the SP table, so that
we can have the SRM optical lever back. |
|
10489
|
Wed Sep 10 15:31:16 2014 |
Steve | Update | SUS | HeNe laser test preparation |
|
 |
10493
|
Thu Sep 11 00:27:39 2014 |
Jenne | Update | SUS | SRM oplev touch-up | The sum vs. pitch and yaw signals for the
SRM QPD weren't making sense to me - centering
on the PD lowered the sum, etc. So, |
|
10495
|
Thu Sep 11 15:50:49 2014 |
Steve | Update | SUS | ETMX damping restored | |
|
10496
|
Thu Sep 11 17:12:42 2014 |
Steve | Update | SUS | OpLev test: old SP qpd connected | IP POS cable was swapped with old SP-QPD
sn222 at the LSC rack. So there is
NO IP POS temporarily. |
|
10504
|
Fri Sep 12 16:30:48 2014 |
Steve | Update | SUS | HeNe laser test preparation |
|
 |
10506
|
Mon Sep 15 15:52:44 2014 |
Steve | Update | SUS | PRM damping restored | The PRM side was kicked up |
|
10513
|
Wed Sep 17 13:41:00 2014 |
Jenne | Update | SUS | New calibrated channels for test QPD | Steve asked about calibrating the QPD,
so I set up some new epics records so that
we can have calibrated versions of the QPD |
|
10517
|
Thu Sep 18 09:17:47 2014 |
Steve | Update | SUS | HeNe laser test | TEST QPD sn 222 was calibrated with 1103P
directly looking into it from 1 m. ND2 filter
was on the qpd. |
  |
10518
|
Thu Sep 18 10:08:07 2014 |
steve | Summary | SUS | oplev laser summary updated |
|
|
10522
|
Mon Sep 22 10:14:07 2014 |
Steve | Update | SUS | HeNe laser test |
|
|
10525
|
Tue Sep 23 08:34:14 2014 |
Steve | Update | SUS | HeNe laser test |
The room temp drops 1 degree
C on the 4th day. The weather has changed. |
|
10526
|
Tue Sep 23 09:37:12 2014 |
Steve | Update | SUS | IOO and temp changes | |
|
10537
|
Thu Sep 25 10:53:32 2014 |
Steve | Update | SUS | HeNe laser test |
|
|
10542
|
Fri Sep 26 09:13:17 2014 |
Steve | Update | SUS | vent day 2 | ITMY in vac table needs leveling. |
 |
10643
|
Tue Oct 28 01:12:57 2014 |
Jenne | Update | SUS | ETMX bad :( | ETMX is misbehaving again. I went
to go squish his cable at the rack and at
the satellite box, but it still happened |
|
10644
|
Tue Oct 28 02:44:08 2014 |
Jenne | Update | SUS | ETMX bad :( | Okay, now ETMX's badness is a show-stopper.
I'm not sure why, but after this last lockloss,
ETMX won't stay put. Right now (as |
|
10645
|
Tue Oct 28 11:45:21 2014 |
manasa | Update | SUS | ETMX - observation | I looked at what are the situations that
make ETMX lose alignment.
This is not occur all that often |
|
10691
|
Mon Nov 10 07:36:35 2014 |
Steve | Update | SUS | PRM damping recovered | PRM sus damping recovered and PMC locked. |
|
10694
|
Mon Nov 10 23:14:20 2014 |
rana | Summary | SUS | SRM: damping gains & Optical Lever servo Tune-up |
tweaked gains for POS,
PIT, YAW, SIDE by ~10-20% to get nice ringdowns
with Q~5.
Measured bounce rool |
  |
10708
|
Thu Nov 13 01:03:28 2014 |
rana, jenne | Update | SUS | OL updates on ITMs and ETMs | We copied the new SRM filters over
onto the OL banks for the ITMs and ETMs.
We then adjusted the gain to be 3x lower |
|
10714
|
Fri Nov 14 08:25:29 2014 |
Steve | Update | SUS | morning issues | PRM, SRM and the ENDs are kicking up.
Computers are down. PMC slider is stuck
at low voltage. |
|
10719
|
Fri Nov 14 19:28:33 2014 |
Jenne | Update | SUS | ASS gain reduced for Yarm | [Koji, Jenne]
We noticed last night that the yarm
couldn't handle the old nominal gain for |
|
10732
|
Fri Nov 21 18:23:01 2014 |
diego | Update | SUS | Anti-Jitter Telescope for OpLevs | EDIT: some images look
bad on the elog, and the notebook is parsed, |
14x |
10733
|
Mon Nov 24 20:24:29 2014 |
diego | Update | SUS | Anti-Jitter Telescope for OpLevs | I stared a bit longer at the plots and
thanks to Eric's feedback I noticed I payed
too much attention to the comparison between |
6x |
10738
|
Mon Dec 1 07:30:29 2014 |
Steve | Update | SUS | ETMX damping restored | ETMX sus damping restored and PMC locked
manually. |
|
10753
|
Thu Dec 4 01:24:47 2014 |
Jenne | Update | SUS | PRM volin 3rd harmonic | Earlier this afternoon, while locking PRMI,
I saw a big peak at 1883.48 Hz. This
comes closest to the PRM's 627.75 Hz *3, |
|
10757
|
Fri Dec 5 00:52:51 2014 |
Jenne | Update | SUS | ETMX 2nd order violin | We looked at the spectra of POX and POY
during IR lock, and Q saw a peak at 1285
in POX only. We're actuating on the |
|
10850
|
Sun Jan 4 12:49:18 2015 |
Steve | Update | SUS | recent earthquakes | All suspensions were tripped. Damping were
restored. No obvious sign of damage. BS OSEM-UR
may be sticking ? |
|
10852
|
Mon Jan 5 12:42:09 2015 |
ericq | Update | SUS | BS misbehaving | The BS was showing some excess motion.
I think I've fixed it. Order of operations:
The DC PIT bias from previous |
|
10870
|
Wed Jan 7 14:35:44 2015 |
diego | Update | SUS | SUS Drift Monitor | The SUS Drift Monitor screen has been updated:
removed the old dead channels
from the MEDM screen;
updated |
|
10881
|
Thu Jan 8 23:02:30 2015 |
diego | Update | SUS | SUS Drift Monitor | The MEDM screen has been updated: the new
buttons, one for each optic, call the scripts/general/SUS_DRIFTMON_update_reference.py
script, which measures (and averages) for |
|
10882
|
Fri Jan 9 10:52:37 2015 |
Steve | Update | SUS | PIT trend plots at the ends | 100 and 10 days trends of ETMX and ETMY_SUSPIT.
One can see clearly the earthquaks
of Dec.30 and 31 on the 10 day plot. You |
|
10924
|
Tue Jan 20 19:32:06 2015 |
Jenne | Update | SUS | SUS Drift restore scripts | I made little scripts to go with the sus
driftmon buttons, that will servo the alignment
sliders until the susyaw and suspit values |
|
10930
|
Thu Jan 22 15:35:41 2015 |
diego | Update | SUS | Bounce/Roll Measurements | I measured the bounce/roll frequencies
for all the optics, and updated the Mechanical
Resonances wiki page accordingly. |
|
10932
|
Thu Jan 22 22:15:30 2015 |
diego | Update | SUS | Centered OpLevs | [Diego, Jenne]
We centered the OpLevs for ITMX
and ITMY. |
|
10934
|
Fri Jan 23 10:07:15 2015 |
Steve | Update | SUS | SUS Drift ETMX vs ETMY | ETMX YAW stopped drifting Jan 8, 2015
|
|
10989
|
Mon Feb 9 08:40:49 2015 |
Steve | Update | SUS | recent earthquake 4.9 | Baja 4.9 m earth quake tripped suspentions,
except ETMX Sus damping recovered. MC is
locking. |
|
11088
|
Mon Mar 2 18:34:12 2015 |
Jenne | Update | SUS | ETMX moving during single arm lock | This has been edited several times over
the last several hours, as I try to change
different parameters, to see if they affect |
    |
11092
|
Tue Mar 3 09:42:40 2015 |
Steve | Update | SUS | ETMX is drifting | The temperature of the east and south ends
are normal, they are about the same.
|
 |