| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
13548
|
Mon Jan 15 17:36:03 2018 |
gautam | HowTo | Optical Levers | Oplev calibration | Summary:
I
checked the calibration of the Oplevs for
both ITMs, both ETMs and the BS. The table |
|
|
13806
|
Wed May 2 10:03:58 2018 |
Steve | HowTo | SEI | preparation of load cell measurement at ETMX | Gautam and Steve,
We have calibrated the load
cells. The support beams height monitoring |
6x |
|
13809
|
Thu May 3 09:56:42 2018 |
Steve | HowTo | SEI | preparation of load cell measurement at ETMX | [ Dennis Coyne' precision answer
]
|
|
|
13840
|
Mon May 14 08:55:40 2018 |
Dennis Coyne | HowTo | SEI | preparation of load cell measurement at ETMX | follow
up email from Dennis 5-13-2018. |
|
|
14049
|
Tue Jul 10 16:59:12 2018 |
Izabella Pastrana | HowTo | Computer Scripts / Programs | Taking Remote TF Measurements with the Agilent 4395A | I copied the netgpibdata folder
onto rossa (under the directory ~/Agilent/),
which contains all the necessary scripts |
|
|
14662
|
Tue Jun 11 00:00:15 2019 |
Milind | HowTo | PSL | Steps to lock the PMC | Today, Rana had me key the PSL crate.
Locating the rack:
the crate is 1X1. This |
|
|
14764
|
Tue Jul 16 15:17:57 2019 |
Koji | HowTo | CDS | Final bit bug of the BIO CDS module | Yutaro talked about the BIO bug in KAGRA
elog. http://klog.icrr.u-tokyo.ac.jp/osl/?r=9536
I think I made the similar change |
|
|
14858
|
Thu Sep 5 18:42:19 2019 |
aaron | HowTo | CDS | WFS discussion, restarting CDS | [aaron, rana]
While going to take some transfer
functions of the MC WFS loop, LSC was down. |
|
|
14859
|
Thu Sep 5 20:30:43 2019 |
rana | HowTo | CDS | WFS discussion, restarting CDS | via Polish chat, GV tells us to RTFE |
|
|
14860
|
Fri Sep 6 09:40:56 2019 |
aaron | HowTo | CDS | WFS discussion, restarting CDS | As suggested, I ran the script cds/rebootC1LSC.sh
I got a timeout error when the
script tried closing the PSL shutter ('C1:AUX-PSL_ShutterRqst' |
|
|
14861
|
Fri Sep 6 11:56:44 2019 |
aaron | HowTo | CDS | WFS discussion, restarting CDS | Rebooting
I reset c1lsc, c1sus,
and c1ioo.
I noticed that the script gives |
|
|
14862
|
Fri Sep 6 15:12:49 2019 |
Koji | HowTo | CDS | WFS discussion, restarting CDS | Assuming you are at pianosa, /etc/resolv.conf
is like
# |
|
|
14865
|
Fri Sep 6 21:22:06 2019 |
Koji | HowTo | CDS | How to save c1ioo | Q1 Can we run the machine with the reduced
# of cores?
Q2 We might be able to order them |
|
|
14866
|
Fri Sep 6 22:03:30 2019 |
aaron | HowTo | CDS | How to save c1ioo | Saw these slightly delayed.
Q1: Not sure--is it a safe operation
for me to remove the DIMM on CPU0, replace |
|
|
14867
|
Mon Sep 9 11:36:48 2019 |
aaron | HowTo | CDS | How to save c1ioo | One pair of DIMM cards from the Sunstone
box had the same Sun part number as those
in c1ioo, so |
|
|
14881
|
Mon Sep 16 12:00:16 2019 |
aaron | HowTo | General | Moved some immovable optics | When I put away the lenses we had used
for measuring the RF transfer functions of
the QPD heads, I saw that I'd removed |
|
|
14890
|
Tue Sep 17 14:43:59 2019 |
gautam | HowTo | CDS | Final bit bug of the BIO CDS module | Came across this while looking up the BIO
situation at 1Y2. For reference, the fix
Koji mentions can be seen in the attached |
|
|
14900
|
Thu Sep 19 15:59:29 2019 |
aaron | HowTo | CDS | How to save c1ioo | New DIMM cards have arrived. I stored them
in the digital cabinet along y arm. |
|
|
15462
|
Thu Jul 9 16:02:33 2020 |
Jon | HowTo | CDS | Procedure for setting up BHD front-ends | Here is the procedure for setting up the
three new BHD front-ends (c1bhd, c1sus2,
c1ioo - replacement). This plan is based |
|
|
15760
|
Tue Jan 12 08:21:47 2021 |
anchal | HowTo | CDS | Acromag wiring investigation | I used an Acromag XT1221 in CTN to play
around with different wiring and see what
works. Following are my findings: |
|
|
15761
|
Tue Jan 12 11:42:38 2021 |
gautam | HowTo | CDS | Acromag wiring investigation | Thanks for the systematic effort.
Can you please post some
time domain plots (ndscope perferably or |
|
|
15762
|
Wed Jan 13 16:09:29 2021 |
Anchal | HowTo | CDS | Acromag wiring investigation | I'm working on a better wiring diagram
that takes into account multiple power supplies,
how their GND is passed forward to the circuits |
|
|
15778
|
Tue Jan 26 12:59:51 2021 |
Anchal | HowTo | CDS | Acromag wiring investigation | Taking inspiration from SR785 on how it
reads differential signal, I figured that
acromag too always need a way to return current |
|
|
15779
|
Tue Jan 26 15:37:25 2021 |
Anchal | HowTo | CDS | Acromag wiring investigation | Here I present few wiring diagrams when
using Acromag to avoid noisy behavior and
ground loops. |
|
|
15785
|
Fri Jan 29 17:57:17 2021 |
Anchal | HowTo | CDS | Acromag wiring investigation | I found a
white paper from Acromag which
discusses how to read differential signal |
|
|
15857
|
Wed Mar 3 12:00:58 2021 |
Paco, Anchal | HowTo | IMC | MC_F ASD | [Paco, Anchal]
- Saved BURT backup in /users/anchal/BURTsnaps/
- Copied existing code for mode cleaner |
|
|
16085
|
Mon Apr 26 18:52:52 2021 |
Anchal, Paco | HowTo | Computer Scripts / Programs | awg free slot | Today we had some trouble launching an
excitation on C1:IOO-MC_LSC_EXC from awggui.
The error read: |
|
|
16441
|
Sun Oct 31 14:21:31 2021 |
rana | HowTo | Treasure | IFOCad | IFOcad model/video of the AEI 10m interferometer:
https://10m.aei.mpg.de/design-and-sensitivity/ |
|
|
16467
|
Tue Nov 16 11:37:26 2021 |
Hang | HowTo | SUS | Fitting suspension model--large systematic errors | One goal of our sysID study is to improve
the aLIGO L2A feedforward. Our algorithm
currently improves only the statistical uncertainty |
|
|
16486
|
Mon Nov 29 15:24:53 2021 |
Hang | HowTo | General | Fisher matrix vs length of each FFT segment | We have been discussing how does the parameter
estimation depends on the length per FFT
segment. In other words, after we collected |
|
|
16980
|
Fri Jul 8 14:03:33 2022 |
JC | HowTo | VAC | Vacuum Preparation for Power Shutdown | [Koji, JC]
Koji and I have prepared the vacuum
system for the power outage on Saturday. |
|
|
16985
|
Mon Jul 11 15:26:12 2022 |
JC | HowTo | VAC | Startup after Power Outage | [Koji, Jc]
Koji and I began starting that
Vacuum system up. |
|
|
16987
|
Mon Jul 11 17:41:52 2022 |
Koji | HowTo | VAC | Startup after Power Outage | - Once the FRG gauge readings are back
(see next elog by Tega), I could open V1
to pump down the main vacuum manifold. |
|
|
17104
|
Thu Aug 25 15:24:06 2022 |
Paco | HowTo | Electronics | RFSoC 2x2 board -- fandango | [Paco, Chris Stoughton, Leo -- remote]
This morning Chris came over to
the 40m lab to help us get the RFSoC board |
|
|
17194
|
Mon Oct 17 17:42:35 2022 |
JC | HowTo | OPLEV Tables | IMC Reflected beam sketch | I sketched up a quick drawing with estimated
length for the IMC reflected beam. This includes
the distances and focal length. Distances |
|
|
17277
|
Thu Nov 17 11:24:39 2022 |
JC | HowTo | LSC | Locking MICH | [Yuta, JC]
Here is the Yuta's Alignment
Scheme from elog |
|
|
17321
|
Tue Nov 29 11:38:37 2022 |
JC | HowTo | LSC | Lock Single Arm After MICH lock | I tried locking single arm this morning,
but I was unable to because the triggers
were set to lock strictly to MICH. Anchal |
|
|
17387
|
Thu Jan 5 14:30:32 2023 |
Paco | HowTo | DAQ | nds2 server restart | After being unable to fetch data offsite
using the nds40 server, I found enlightment
here. |
|
|
17507
|
Tue Mar 14 11:34:05 2023 |
Alex | HowTo | Computer Scripts / Programs | Summary Pages Restart | If the summary pages go down, it could
be from a break in the script or some small
error. The first remedy for fixing this can |
|
|
17775
|
Thu Aug 10 20:19:40 2023 |
Hiroki | HowTo | CDS | Fixing error of "Unable to obtain measurement data" | [JC, Koji, Yuta, Hiroki]
When we tried to measure the spectrum
of C1:LSC-DARM_IN2 with the diaggui, |
|
|
131
|
Wed Nov 28 16:18:15 2007 |
Alberto | Metaphysics | Environment | so clean you can eat on it | I tidied up the desks in the lab, brought
the Spectrum Analyzers back to the Salumeria
(you don't want to know about that), sorted |
|
|
180
|
Fri Dec 7 14:14:48 2007 |
rob | Metaphysics | Computer Scripts / Programs | tdsread problems on Solaris |
[COLOR=darkblue]tdsread[/COLOR] has developed
a strange new illness, whereby it cannot |
|
|
277
|
Sun Jan 27 13:13:21 2008 |
tobin | Metaphysics | General | departure | It's been grand. Thanks for having me!
GWAVES IN '08!
|
|
|
374
|
Thu Mar 13 03:07:19 2008 |
Lisa | Metaphysics | Environment | Coolness at the 40m | My first (and hopefully not last) week at
the [COLOR=orange]40m lab[/COLOR] is ending
:(
|
|
|
438
|
Tue Apr 22 22:19:02 2008 |
rob | Metaphysics | lore | jiggling sliders |
In the interests of tacit communication of
scientific knowledge, I here reveal a nugget |
|
|
652
|
Wed Jul 9 15:04:22 2008 |
steve | Metaphysics | Photos | SURFs helping hands | Surf students are helping out with baffle
cleaning. |
|
|
657
|
Thu Jul 10 23:27:57 2008 |
John | Metaphysics | Cameras | Secret handshakes | Rob and I have joined the ranks of the illuminati
and exercised our power.
|
|
|
658
|
Fri Jul 11 00:30:24 2008 |
rob | Metaphysics | Computers | strange SUS controllers |
[I]rob, johnnie[B]M[/B][/I]
|
|
|
716
|
Tue Jul 22 16:50:09 2008 |
steve | Metaphysics | Environment | professorial clean up of work bench | Atm1: is showing the spiritual satisfaction
after work bench clean up by the professor
himself.
|
|
|
1025
|
Fri Oct 3 19:38:02 2008 |
rob | Metaphysics | Environment | The Gatekeeper |
Found this lady outside the door of the 40m
lab a few nights ago. |
|