| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
13868
|
Fri May 18 20:03:14 2018 |
Pooja | Update | Cameras | Telescopic lens solution for GigE | Aim: To find telescopic lens solution to
image test mass onto the sensor of GigE camera.
I wrote a python code to find an |
8x |
|
13869
|
Sun May 20 17:43:01 2018 |
rana | Update | Electronics | How to choose resistors | Article
from EE Times, describing why metal foil
(NOT metal film) resistors are really better |
|
|
13870
|
Sun May 20 23:43:50 2018 |
gautam | Update | IOO | Coil driver noise re-measurement | Summary:
In the IMC actuation chain, it
looks like the MC1/MC3 |
|
|
13871
|
Mon May 21 10:15:35 2018 |
gautam | Update | PEM | test setup with seismometer | I guess it's fine for now while we
are still finalizing the setup at EX, but
we should eventually line up the seismometer |
|
|
13872
|
Mon May 21 14:17:28 2018 |
Kira | Update | PEM | test setup with seismometer | I have attached the graph for the seismometer
temperature fluctuations over 3 days. As
we can see, there is a noticeable fluctuation |
|
|
13874
|
Mon May 21 17:36:00 2018 |
pooja | Update | Cameras | GigE camera image of ETMX | Today Steve and I tried to to capture the
image of scattering of light by dust particles
on the surface of ETMX using GigE camera. |
|
|
13875
|
Mon May 21 18:02:55 2018 |
keerthana | Update | General | Testing of the new mini-circuits frequency counter | Today, I tested the new mini-circuit frequency
counter by connecting it with the beat signal
output. The frequency counter works fine. |
|
|
13877
|
Tue May 22 14:49:03 2018 |
Kira | Update | PEM | test setup with seismometer | It appears that one of the wires was disconnected
overnight or this morning so I wasn't
able to gather data over a full 24 hour period. |
|
|
13878
|
Tue May 22 17:26:25 2018 |
gautam | Update | IOO | MC1 Coil Driver pulled out | I have pulled out MC1
coil driver board from its Eurocrate, so |
|
|
13879
|
Tue May 22 17:29:27 2018 |
keerthana | Update | elog | MEDM Diagram for the auxilary laser system control and display. | (keerthana, gautam, jon)
In the morning, Jon gave me an
overview of the Auxiliary laser system which |
|
|
13880
|
Tue May 22 23:28:01 2018 |
gautam | Update | IOO | MC1 Coil Driver pulled out | This work is now complete.
MC1 coil driver board has been reinstalled, |
|
|
13882
|
Wed May 23 14:50:33 2018 |
Kira | Update | PEM | test setup with seismometer | This time the test went without issue.
The first attachment is the data for the
past 24 hours and the second attachment is |
|
|
13883
|
Wed May 23 17:58:48 2018 |
gautam | Update | IOO | MC1 Coil Driver pulled out |
Marked up schematic + photo post
changes uploaded to DCC
page.
There was a capacitor |
|
|
13885
|
Thu May 24 10:16:29 2018 |
gautam | Update | General | All models on c1lsc frontend crashed | All models on the c1lsc
front end were dead. Looking at slow trend |
|
|
13887
|
Thu May 24 15:18:12 2018 |
Kira | Update | PEM | PID loop restarted | Rana said that it wasn't necessary
to gather more data on the temperature fluctuations
so I have reconnected the heater circuit |
|
|
13888
|
Thu May 24 16:08:12 2018 |
Kira | Update | PEM | parts list | We will need to order a few things for
our final setup.
1U box to place the heater |
|
|
13893
|
Fri May 25 14:55:33 2018 |
Jon Richardson | Update | Cameras | Status of GigE Camera Software Fixes | There is an effort to switch to an all-digital system
for the GigE camera feeds similar to the
one running at LLO, which uses Joe Betzwieser's |
|
|
13894
|
Tue May 29 16:22:43 2018 |
Kira | Update | PEM | parts list | I've updated the parts list to be an
excel document and included every single
part we will need. This is ony a first draft |
|
|
13895
|
Tue May 29 16:33:04 2018 |
Steve | Update | PEM | air cond filters replaced | Chris replaced some air condition filters
and ordered some replacement filter today.
|
|
|
13896
|
Wed May 30 10:17:46 2018 |
gautam | Update | IOO | MC1 Coil Driver pulled out | [rana,gautam]
Summary:
Last night, Rana fact-checked my |
|
|
13897
|
Wed May 30 12:13:13 2018 |
rana | Update | Computers | NODUS: rsyncd + frames | To get our rsync back to LDAS back up,
I followed instructions from Dan Kozak:
|
|
|
13899
|
Wed May 30 23:57:08 2018 |
gautam | Update | PEM | Burning smell in office area / control room | [koji, gautam]
We noticed quite a strong burning
smell in the office area and control room |
|
|
13900
|
Thu May 31 02:04:55 2018 |
johannes | Update | PSL | AUX laser state of mind | The AUX laser is down to 5.4 mW output
power |
|
|
13901
|
Thu May 31 10:19:42 2018 |
gautam | Update | SUS | MC3 glitchy | Seems like as a result of my recent poking
around at 1X6, MC3 is more glitchy than usual
(I've noticed that the IMC lock duty |
|
|
13902
|
Thu May 31 15:36:59 2018 |
gautam | Update | General | New camera channels | Jon informed me that there are some EPICS
channels that JoeB's camera server code
looks for that don't exist. I thought |
|
|
13903
|
Thu May 31 15:48:16 2018 |
Kira | Update | PEM | running PID script with seismometer | I have attached the result of running the
PID script on the seismometer with the can
on. The daily fluctuations are no more than |
|
|
13904
|
Thu May 31 17:47:12 2018 |
Koji | Update | Computers | megatron process cleaning up | megatron had full of zombie medm processes
due to some of the screenshot scripts.
I also found that apache2 is running |
|
|
13905
|
Thu May 31 19:51:06 2018 |
Koji | Update | General | WiFi router firmware update / rebooting | The model of our martian wifi router (NETGEAR
R6400) was found in the FBI router list to
be rebooted asociated with the malware "VPNFilter" |
|
|
13907
|
Thu May 31 23:12:17 2018 |
gautam | Update | LSC | DRMI locking attempt | Summary:
I wanted to recover the DRMI locking.
Among other things, Jon mentioned that his |
|
|
13908
|
Fri Jun 1 01:22:50 2018 |
gautam | Update | LSC | DRMI locking restored | As it happened last time, the problem apparently
fixed itself - somehow the act of me disconnecting
the cables and reconnecting them seems to |
|
|
13909
|
Fri Jun 1 19:25:11 2018 |
pooja | Update | Cameras | Synchronizing video data with the applied motion to the mirror | Aim: To synchronize data
from the captured video and the signal applied
to ETMX |
|
|
13911
|
Sun Jun 3 22:48:59 2018 |
johannes | Update | PSL | aux laser replacement | I brought the NPRO from the Crackle experiment
over to the 40m Lab and set it up on the
PSL table to replace the slowly dying AUX |
|
|
13912
|
Mon Jun 4 02:52:52 2018 |
johannes | Update | PSL | aux laser replacement | > While the laser output is going strong,
the controller displays a power output of
only 10 mW, which makes me think that the |
|
|
13913
|
Mon Jun 4 11:00:37 2018 |
gautam | Update | PSL | aux laser replacement |
Quote:
|
|
|
13914
|
Mon Jun 4 11:34:05 2018 |
Jon Richardson | Update | Cameras | Update on GigE Cameras | I spent a day trying to modify
Joe B.'s LLO camera client-server code
without ultimate success. His codes now runs |
|
|
13915
|
Mon Jun 4 19:41:01 2018 |
keerthana | Update | | Finesse code for cavity scan | The cavity scan data obtained from the
Finesse simulation is attached here. Fig1
indicates the cavity scan data in the absence |
|
|
13916
|
Tue Jun 5 02:06:59 2018 |
gautam | Update | PSL | aux laser first (NULL) results | [johannes,
gautam] |
|
|
13917
|
Tue Jun 5 20:31:42 2018 |
rana | Update | Cameras | Update on GigE Cameras | Aha! Video is back!
I think it would be good to add
a flag whereby the video can be saved to |
|
|
13918
|
Wed Jun 6 10:02:52 2018 |
Steve | Update | VAC | RGA scan | |
|
|
13919
|
Wed Jun 6 10:44:52 2018 |
gautam | Update | VAC | Annulus pressure channels added to frames | [steve,
gautam]
We added the following channels |
|
|
13920
|
Wed Jun 6 14:36:15 2018 |
gautam | Update | LSC | TRX clipping | For some time now, I've been puzzled
by the unreliability of the ASS_X dither
alignment servo. Leaving the servo on, TRX |
|
|
13921
|
Wed Jun 6 14:50:25 2018 |
gautam | Update | General | LSC triggering | I though that the "C1LSC_TRIG_MTRX"
MEDM screen completely controls the triggring
of LSC signals. But today while trying to |
|
|
13922
|
Wed Jun 6 15:12:29 2018 |
Kira | Update | PEM | parts from lab | Got this 1U box from the Y arm that we
could potentially use (attachment 1). It
doesn't have handles on the front but |
|
|
13924
|
Thu Jun 7 10:26:36 2018 |
keerthana | Update | PSL | observing the resonance signal corresponding to the injected frequency. |
(Johannes, Koji,
Keerthana)
The PLL loop ensures that the frequency |
|
|
13925
|
Thu Jun 7 12:20:53 2018 |
gautam | Update | CDS | slow machine bootfest | FSS slow wasn't running so PSL PZT
voltage was swinging around a lot. Reason
was that was |
|
|
13926
|
Thu Jun 7 14:35:26 2018 |
keerthana | Update | elog | Table- useful for doing the scanning. | I think this table will help us to fix
the scanning range of the Marconi frequency.
This will also help in predicting the position |
|
|
13927
|
Thu Jun 7 16:15:03 2018 |
gautam | Update | LSC | TRX clipping | I opted for the quickest fix - I raised
the height of the offending steering mirror
using a 0.25" shim. In the long term, |
|
|
13928
|
Thu Jun 7 20:19:53 2018 |
pooja | Update | | | Just to inform, I'm working in optimus
to develop python code to train the neural
network since it requires a lot of memory. |
|
|
13929
|
Thu Jun 7 20:21:15 2018 |
Koji | Update | Computer Scripts / Programs | /cvs/cds Backup in danger | Local
backup on chiara seems not |
|
|
13930
|
Thu Jun 7 22:36:09 2018 |
not keerthana | Update | PSL | observing the resonance signal corresponding to the injected frequency. | I worked a bit on the PSL table today |
|