| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
12585
|
Thu Oct 27 23:29:47 2016 |
ericq | Update | General | PRFPMI locked, arms loss improved | As Gautam mentioned, we had some success
locking the PRFPMI last
night. (SRM satellite box is still in surgery...) |
|
|
12591
|
Wed Nov 2 12:05:00 2016 |
ericq | Update | ASC | Quick WFS thoughts | I poked around a bit thinking about what
we need for a single AS WFS.
New things that we would need: |
|
|
12597
|
Thu Nov 3 13:36:16 2016 |
ericq | Update | CDS | c1pem revamped | It seems that the EX and EY BLRMS banks
were missing the BP and LP filters for the
0.03-0.1 and 0.1-0.3 bands. I've copied |
|
|
12608
|
Wed Nov 9 11:40:44 2016 |
ericq | Update | CDS | safe.snap BURT files now in svn | This is long overdue, but our burt files
for SDF now live in the LIGO userapps SVN,
as they should. |
|
|
12672
|
Wed Dec 7 11:52:48 2016 |
ericq | Update | IMC | Partial IMC ringdowns | The transients are likely due to doppler
interference due to the input laser frequency
sloshing due to errant control signals after |
|
|
12719
|
Sat Jan 14 12:36:57 2017 |
ericq | Update | DAQ | minute trends missing | Yes, writing minute trends causes hourly
FB crashes in the current state of things.
The "raw" minute trending is turned |
|
|
12732
|
Wed Jan 18 12:34:21 2017 |
ericq | Summary | IOO | MCL / MCF / Calibration |
|
|
|
12733
|
Wed Jan 18 12:46:47 2017 |
ericq | Update | Computer Scripts / Programs | nodus web apache simlinks too soft |
|
|
|
12740
|
Thu Jan 19 16:36:35 2017 |
ericq | Update | Computer Scripts / Programs | nodus web apache simlinks too soft |
|
|
|
12776
|
Tue Jan 31 15:08:13 2017 |
ericq | Metaphysics | CDS | Minute Trend Koan | A novice was learning at the feet of Master
Daqd. At the end of the lesson he looked
through his notes and said, “Master, |
|
|
12779
|
Tue Jan 31 20:25:26 2017 |
ericq | Summary | CDS | Minute Trend Koan |
|
|
|
12796
|
Fri Feb 3 11:40:34 2017 |
ericq | Summary | CDS | /cvs/cds/caltech/chans back on svn1.6 | I was able to bring back svn 1.6 formatting
to /cvs/cds/caltech/chans by doing the following
on nodus: |
|
|
12830
|
Wed Feb 15 09:06:13 2017 |
ericq | Update | DAQ | panels and pcbs | The amplifier unit should use the three
pin dsub connectors (3w3?) that we use on
many of the other units for DC power, and |
|
|
12962
|
Mon May 1 21:45:54 2017 |
ericq | Update | General | DRMI locking | Comparing counts doesn't get you anywhere;
each PD has different whitening gain which
may vary from measurement to measurement. |
|
|
12974
|
Fri May 5 10:13:02 2017 |
ericq | Update | General | MICH NB questions | Is suspension thermal noise missing? I take
it "Thermal" refers just to thermal things
going on in the optic, since I don't see |
|
|
13227
|
Thu Aug 17 22:54:49 2017 |
ericq | Update | Computers | Trying to access JetStor RAID files | The JetStor RAID unit that we had been
using for frame writing before the fb meltdown
has some archived frames from DRFPMI locks |
|
|
13230
|
Sat Aug 19 01:35:08 2017 |
ericq | Update | ALS | X Arm ALS lock | My motivation tonight was to get an up-to-date
spectrum of a calibrated measurement
of the out-of-loop displacement of an arm |
|
|
13239
|
Tue Aug 22 15:17:19 2017 |
ericq | Update | Computers | Old frames accessible again | It turns out the problem was just a bent
pin on the SCSI cable, likely from having
to stretch things a bit to reach optimus |
|
|
13263
|
Mon Aug 28 17:13:57 2017 |
ericq | Update | CDS | 40m files backup situation | In addition to bootable full disk backups,
it would be wise to make sure the important
service configuration files from each machine |
|
|
9572
|
Thu Jan 23 23:10:19 2014 |
ericq | Update | General | Vent so far | [ericq, Manasa, Jenne]
Summary: We opened up the
BS and both ITM chambers today, and put the |
|
|
9579
|
Mon Jan 27 21:36:35 2014 |
ericq | Update | General | Vent so far | After turning the slow FSS threshold down,
the mode cleaner stays locked enough to do
other things. We were able to align the tip |
|
|
9583
|
Tue Jan 28 22:24:46 2014 |
ericq | Update | General | Further Alignment | [Masasa, ericq]
Having no luck doing things remotely,
we went into the ITMX chamber and roughly |
|
|
12302
|
Thu Jul 14 22:29:57 2016 |
ericq | Update | General | ETMX guide rod gluing / ETMY Magnet gluing | The pickle puckers came off ETMY cleanly ETMY now rests |
|
|
12305
|
Fri Jul 15 16:23:51 2016 |
ericq | Update | General | Gluing setbacks | [ericq, Lydia]
Here is a picture of the ETMX guide
rod post-gluing. There is unfortunately a |
|
|
12372
|
Thu Aug 4 14:21:21 2016 |
ericq | Update | Computer Scripts / Programs | Web things mostly back online | The nodus restart caused a bit of downtime.
The apache configuration files were accidentally
deleted the other day, so elog/svn/wikis |
|
|
12373
|
Thu Aug 4 15:00:40 2016 |
ericq | Update | Computer Scripts / Programs | Web things mostly back online | Nodus' /export
and /etc
directories are now being backed up at |
|
|
12382
|
Sun Aug 7 14:53:39 2016 |
ericq | Update | SUS | ETMX Standoff gluing was successful | I came in to check on ETMX. I freed the
earthquake stops, and found that the OSEMS
were reasonably, but not perfectly, centered. |
|
|
7388
|
Fri Sep 14 16:39:14 2012 |
ericq, jenne | Update | General | First In Vac Picture | After much fussing, we got a picture of
MMT1 with the beam.
Using the iris doesn't seem feasible. |
|
|
10363
|
Mon Aug 11 21:03:48 2014 |
ericq, rana | Summary | IOO | MC demod measurement | We measured
the TF of the MC Demod board today. |
|
|
10935
|
Fri Jan 23 14:25:03 2015 |
evan | Update | CDS | New netgpib scripts for SR785 | Does netgpibdata/TFSR785
work at the 40m currently? I rsynced the
netgpibdata |
|
|
228
|
Wed Jan 9 10:47:15 2008 |
fricke | Update | Computers | ethernet wiring in office/control room | The electrical people have been here for three
days, installing ethernet cables and drops
in the 40m office area, in the old conduits |
|
|
9575
|
Sat Jan 25 21:09:16 2014 |
gabriele | HowTo | LSC | Procedure to measure PRC length | I know the drawing is wrong.
I put random distances, not realistic ones,
and I did not try to get something close |
|
|
12063
|
Tue Apr 5 11:42:17 2016 |
gaericqutam | Update | endtable upgrade | TABLE REMOVAL | There is currently no table at
the X end!
We have moved the vast majority |
|
|
8684
|
Wed Jun 5 20:45:19 2013 |
gautam | Update | General | ITMx Oplev Fixed |
|
|
|
8688
|
Fri Jun 7 17:12:46 2013 |
gautam | Update | General | Projector - lightbulb replaced |
|
|
|
8735
|
Thu Jun 20 20:46:16 2013 |
gautam | Update | IOO | WFS debugging-QPD debugging |
I wanted to make sure that
the QPD map on the C1IOO_MC_TRANS_QPD.adl |
|
|
8745
|
Tue Jun 25 12:42:16 2013 |
gautam | Update | General | Serial-interface with Doubling Oven at Y end | Summary
I have been working on setting up
a serial-link with the temperature controller |
|
|
8746
|
Tue Jun 25 19:18:07 2013 |
gautam | Configuration | endtable upgrade | plan of action for PZT installation | This entry is
meant to be a sort of inventory check and |
|
|
8755
|
Wed Jun 26 11:45:06 2013 |
gautam | Update | General | PID tuning-Doubling Oven at Y end |
Summary
Having established the serial link |
|
|
8758
|
Wed Jun 26 19:02:38 2013 |
gautam | Update | General | ITMx Oplev (not quite?) Fixed |
Summary:
Steve and I tried to fix the Oplev |
|
|
8770
|
Thu Jun 27 18:11:53 2013 |
gautam | Update | General | ITMx Oplev-POX looks beam okay |
Jenne just aligned the X arm
and I got a chance to check the status of |
|
|
8777
|
Thu Jun 27 23:01:39 2013 |
gautam | Update | General | ITMx Oplev-servo gains adjusted |
With rana's input, I changed
the ITMx oplev servo gains given the beam |
|
|
8784
|
Fri Jun 28 13:10:28 2013 |
gautam | Update | General | ITMx Oplev-servo gains adjusted |
As mentioned in elog
8770, I wanted to give the POX beam a |
|
|
8789
|
Tue Jul 2 00:25:14 2013 |
gautam | Update | Green Locking | Universal PDH box tuning | [Koji, Annalisa, Gautam]
Annalisa noticed that over the weekend
the Y-arm green PDH was locked to a sideband, |
|
|
8800
|
Wed Jul 3 21:19:04 2013 |
gautam | Configuration | endtable upgrade | plan of action for PZT installation | This is an update on the situation
as far as PZT installation is concerned.
I measured the required cable (PZT driver |
|
|
8804
|
Mon Jul 8 13:45:19 2013 |
gautam | Configuration | endtable upgrade | Driver board verification | With the help of an expansion card, I
verified that the + 15V and + 24V
from the eurocrate in the slot I've identified |
|
|
8809
|
Tue Jul 9 11:37:37 2013 |
gautam | Update | CDS | set up for testing DAC Interface-board pin outs | The bank marked channel 9-16 is free, but
the connector is a 40 pin IDC and I need
to know the exact pin-out configuration before |
|
|
8811
|
Tue Jul 9 12:01:20 2013 |
gautam | Update | CDS | set up for testing DAC Interface-board pin outs |
Jenne just rebooted c1scy and
daqd on the framebuilder. We will do the |
|
|
8814
|
Tue Jul 9 18:44:37 2013 |
gautam | Update | CDS | DAC Interface Board-Pin Outs | Summary:
The pin-outs for the DAC interface
board have been determined. |
|
|
8817
|
Wed Jul 10 01:27:44 2013 |
gautam | Update | Green Locking | Y-end Green PDH open-loop transfer function | [Annalisa, gautam]
Summary:
We have measured the open-loop transfer |
|