| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
9827
|
Thu Apr 17 17:27:32 2014 |
ericq | Update | LSC | Some reference Plots | Jenne made some suggestions for some plots
that would be useful on our CARM offset reduction
adventures, so I made some with my MIST model. |
|
|
9833
|
Sun Apr 20 18:15:37 2014 |
ericq | Update | IOO | Cleaner Cleanup | Came in, and the PMC and MC needed aligning.
PMC Trans .74->.83
I wasn't able to move the MC1&3 |
|
|
9840
|
Tue Apr 22 02:14:55 2014 |
ericq | Update | LSC | lock acquisition path for the CM servo | In an effort to familiarize myself with
the analog CM servo, I've begun to replicate
Koji and Den's work from the ELOG post that |
|
|
9850
|
Thu Apr 24 16:25:31 2014 |
ericq | Update | LSC | Quick CM servo prep | I added ~1m of cable to the LO side of
the REFL11 Demodulator, which brought its
PRCL demod phase to about 8 degrees. According |
|
|
9853
|
Fri Apr 25 03:14:46 2014 |
ericq | Update | LSC | locking activity | [ericq, Jenne, Zach]
We spent some time tonight trying
to push our CARM locking further, to little |
|
|
9858
|
Sat Apr 26 13:19:59 2014 |
ericq | Summary | IOO | MC2_TRANS QPD Servo re-re-engaged again |
|
|
|
9859
|
Sun Apr 27 19:53:54 2014 |
ericq | Update | LSC | PRFP YArm Locking | Inspired by a comment by Koji the other
day, I spent some time yesterday and today
working on locking a (very lossy) power recycled |
|
|
9889
|
Thu May 1 03:23:07 2014 |
ericq | Update | LSC | Yarm locking with CM board |
|
|
|
9893
|
Thu May 1 16:41:35 2014 |
ericq | Update | LSC | Yarm locking with CM board | (Edited this post; Forgot
to account for the FMs other than 4 and 5...
it now agrees better!) |
|
|
9907
|
Sun May 4 14:20:04 2014 |
ericq | Update | IOO | PMC relocked | The PMC has been unlocked for ~23 hours.
FSS slow was at ~-1.5 V. I zeroed it, and
relocked the PMC, transmission is ~0.81V. |
|
|
9908
|
Sun May 4 22:28:54 2014 |
ericq | Update | LSC | farther into CM | [Rana, ericq]
Today, we got a ~2kHz bandwidth
lock of the YARM with the AO path. We weren't |
|
|
9917
|
Tue May 6 17:58:44 2014 |
ericq | Update | LSC | farther into CM | I took a look at the MC OLTF and
AO path TFs with the fast agilent analyzer.
I played with the relative gain of |
|
|
9927
|
Thu May 8 00:40:39 2014 |
ericq | Update | LSC | BNC vs. 2pin LEMO for AO | I've checked that the 2pin lemo connector
that was run some time ago from the LSC rack
to the MC board does indeed transmit signals. |
|
|
9928
|
Thu May 8 01:33:21 2014 |
ericq | Update | CDS | python issues | On pianosa: The ezca.Ezca class somehow
initializes with its prefix set to "C1:",
even though the docstring says the default |
|
|
9936
|
Fri May 9 04:51:13 2014 |
ericq | Summary | LSC | REFL_DC handoff didn't work last night |
|
|
|
9954
|
Wed May 14 17:36:32 2014 |
ericq | Update | CDS | New netgpib scripts for SR785 | I have redone the SPSR785 (spectrum measurement) |
|
|
9959
|
Thu May 15 16:46:35 2014 |
ericq | Update | LSC | Possible Path to AO path | It's taken a lot of trial and error,
but I've found a path through MATLAB loops
that seems like it may be stable |
|
|
9963
|
Fri May 16 10:54:42 2014 |
ericq | Update | LSC | X Arm ALS Noise coming in and out | Den and I spent some time with the interferometer
last night with hopes of bringing in the
AO path, but were stymied by the (re)occurrence |
|
|
9976
|
Tue May 20 16:48:52 2014 |
ericq | Update | LSC | 3f Stability | So, I really should have done this as soon
as Manasa
measured the arm lengths... I've |
|
|
9977
|
Tue May 20 22:42:28 2014 |
ericq | Update | LSC | 3f Stability | Here's the angles of MICH and PRCL
from the my earlier plot by themselves; this
shows that the individual demod angles in |
|
|
9982
|
Wed May 21 13:18:47 2014 |
ericq | Update | CDS | Suspension MEDM Bug | I fixed a bug in the SUS_SINGLE screen,
where the total YAW output was incorrectly
displayed (TO_COIL_3_1 instead of TO_COIL_1_3). |
|
|
9986
|
Wed May 21 22:15:37 2014 |
ericq | Update | PSL | PMC relocked | PMC has been unlocked for ~4hrs, not sure
why. It's servo gain was down at -10dB...
Relocked with transmission of .76V, |
|
|
9993
|
Mon May 26 20:10:14 2014 |
ericq | Update | PSL | PMC relocked | I came in and PMC transmission was at 0.5V,
and ETMX was swinging around a lot, (LSC
mode was on). |
|
|
10002
|
Thu May 29 02:16:02 2014 |
ericq | Update | LSC | High Bandwidth power recycled Yarm. | I'll put more detail in the morning, but
I was able to get the PRM/ITMY/ETMY coupled
cavities locked with 32kHz bandwidth using |
|
|
10005
|
Thu May 29 15:33:55 2014 |
ericq | Update | LSC | High Bandwidth power recycled Yarm. |
|
|
|
10006
|
Fri Jun 6 14:56:09 2014 |
ericq | Update | elog | Aaaaaand we're back! | ELOG is back up and running after last
Friday's disk-crash-a-thon. SVN is still
a work in progress. Jenne and I are now restarting |
|
|
10011
|
Mon Jun 9 12:19:17 2014 |
ericq | Update | CDS | Computer status |
|
|
|
10049
|
Tue Jun 17 16:52:40 2014 |
ericq | Update | Computer Scripts / Programs | autolocker confusion |
|
|
|
10050
|
Tue Jun 17 17:04:26 2014 |
ericq | Update | Computer Scripts / Programs | FB troubles |
|
|
|
10061
|
Wed Jun 18 18:00:36 2014 |
ericq | Update | Computer Scripts / Programs | control room bashrc change | Some time ago, Rana changed the PS1 prompt
codes on the control room computers. However,
the exit codes of commands weren't being |
|
|
10066
|
Wed Jun 18 22:34:44 2014 |
ericq | Update | IOO | caget frusrtation |
|
|
|
10067
|
Wed Jun 18 22:47:48 2014 |
ericq | Update | CDS | Raspberry pi added to martian network | I set up a raspberry pi on the martian
network, to be hooked up to a frequency counter
for tracking ALS beatnotes. |
|
|
10077
|
Thu Jun 19 22:04:23 2014 |
ericq | Update | Computer Scripts / Programs | caget/caput now return in reasonable time | I think I've fixed the caget/caput issue.
Rana's observation that pinging the IP directly
was faster than pinging the hostname set |
|
|
10080
|
Fri Jun 20 11:43:30 2014 |
ericq | Update | Computer Scripts / Programs | Restarting ELOG | Manasa let me know that the ELOG was down,
and that she used the normal restart procedure,
but then all entries were gone. |
|
|
10088
|
Mon Jun 23 20:58:38 2014 |
ericq | Update | CDS | Bootfest 2014! | This afternoon, I wanted to start the nominal
alignment/adjustment steps for evening time
locking, but got sucked into CDS frustrations. |
|
|
10095
|
Tue Jun 24 22:46:15 2014 |
ericq | Update | Computer Scripts / Programs | op340m crons |
|
|
|
10113
|
Mon Jun 30 16:55:24 2014 |
ericq | Update | General | IFO (mostly) aligned | IR Alignment of the IFO is recovered!
Green alignment could use some attention.
Arms
and PRC hold well, powers are within normal |
|
|
10116
|
Tue Jul 1 13:57:33 2014 |
ericq | Update | Computer Scripts / Programs | MC Autolocker on Megatron | Just a quick update on the status
of the auto locker:
The auto locker now runs and respawns |
|
|
10122
|
Wed Jul 2 15:35:34 2014 |
ericq | Update | Computer Scripts / Programs | Local Chiara backups | Koji has provided a 2TB USB3 external hard
drive that will get daily backups of chiara:/home/cds,
the idea being that if the internal HD at |
|
|
10236
|
Fri Jul 18 15:21:12 2014 |
ericq | Update | Computer Scripts / Programs | Local Chiara backups |
|
|
|
10247
|
Mon Jul 21 13:58:33 2014 |
ericq | Update | IOO | MC autolocker acting up | The autolocker claimed it was running and
blinking, but not doing anything (i.e. lock
bit was not updating and no switches or sliders |
|
|
10248
|
Mon Jul 21 17:32:43 2014 |
ericq | Summary | LSC | Arm losses |
|
|
|
10253
|
Tue Jul 22 15:54:19 2014 |
ericq | Update | SUS | ITMY Oplev Recentered | ITMY oplev was nearly clipping in
yaw, causing wonky behavior (POY lock popping
in and out frequently). I recentered it and |
|
|
10267
|
Wed Jul 23 23:43:28 2014 |
ericq | Update | LSC | Locking efforts; Wrath of the Mode Cleaner | [Koji, ericq]
We were working on getting back into
the locking groove tonight. |
|
|
10269
|
Thu Jul 24 13:01:39 2014 |
ericq | Update | SUS | PRM OPLEV! | Here's a fun fact: since
the great computer failure of June2014, the
PRM Oplev gains have been ZERO.
|
|
|
10292
|
Tue Jul 29 21:34:41 2014 |
ericq | Update | Computer Scripts / Programs | SVN bulletin | A heads
up to anyone using SVN with computers on
the Martian network: |
|
|
10303
|
Thu Jul 31 09:14:14 2014 |
ericq | Update | IOO | MC stability | Last night, I poked around to try
and see if I could reproduce the sketchy
MC behavior by exciting MC2 in a way that |
|
|
10323
|
Fri Aug 1 15:32:07 2014 |
ericq | Update | Computer Scripts / Programs | Elog and svn backups | Koji and Evan have both brought up a good
point that we may not be backing up the svn
and ELOG properly. |
|
|
10326
|
Sun Aug 3 17:19:32 2014 |
ericq | Update | General | Recovery efforts | [ericq, Jenne]
We both happened to come by today
to fix things up. |
|
|
10329
|
Mon Aug 4 17:30:00 2014 |
ericq | Update | General | Chronic Suspension Problems | TRX and TRY communication were recovered
by doing a simultaneous reboot of all of
the frontends. |
|