| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
12938
|
Mon Apr 10 18:42:09 2017 |
johannes | Update | Cameras | Pylon installation warning | It looks like we may not need to use this
old Pylon version after all. Gautam and I
looked into installing SnapPy with the makefile |
|
|
12939
|
Tue Apr 11 00:38:37 2017 |
gautam | Update | PSL | PMC demod moved off servo board | As discussed at the Wednesday meeting last
week, I tried moving the demodulation of
the PMC error signal off the PMC servo board, |
|
|
12940
|
Wed Apr 12 00:36:53 2017 |
gautam | Update | PSL | PMC demod moved off servo board | Here is a more detailed comparison of the
spectra of the signals at the front panel
DAQ LEMO output, measured with the Agilent |
|
|
12941
|
Thu Apr 13 09:48:37 2017 |
Steve | Update | SUS | ITMY-UL and ETMX sensors | Why ITMY UL can not see this earth quake?
SRM and PRM are misaligned. ETMX is still
not well. |
|
|
12942
|
Thu Apr 13 19:54:07 2017 |
rana | Update | DAQ | checkup on minute trends | Our minute trends are still not available
through NDS2 from the outside world due to
the bad config of the DAQ, but I can confirm |
|
|
12943
|
Thu Apr 13 21:01:20 2017 |
rana | Configuration | Computers | LG UltraWide on Rossa | we installed a new curved 34" doublewide
monitor on Rossa, but it seems like it has
a defective dead pixel region in it. Unless |
|
|
12944
|
Tue Apr 18 01:01:03 2017 |
gautam | Update | PSL | PMC OLTF measured, DAQ channels calibrated | Quick entry, details to follow in the AM
tomorrow.
I calibrated the PMC DAQ |
|
|
12945
|
Tue Apr 18 16:10:00 2017 |
gautam | Update | PSL | PMC OLTF measured, DAQ channels calibrated | Here are the details:
PMC OLTF:
the
procedure used was identical to what Koji |
|
|
12946
|
Tue Apr 18 23:37:15 2017 |
rana | Update | PSL | PMC OLTF measured, DAQ channels calibrated | What's
the reasoning behind setting the the gain |
|
|
12947
|
Wed Apr 19 15:13:30 2017 |
gautam | Update | PSL | PMC/MCL multicoherence | I used a one hour stretch of data from
last night to look at coherence between the
PMC control signal and MCL, to see if the |
|
|
12948
|
Wed Apr 19 15:46:24 2017 |
gautam | Update | General | 1611/1811 inventory check | I looked through the lab area to do a fast
photodiode inventory check, as we may need
to buy some for the higher order mode spectroscopy |
|
|
12949
|
Fri Apr 21 13:59:47 2017 |
Eric Gustafson | Summary | | 1064 nm Semiconductor Laser Fiber Distribution System and Mirror Tomography | 1064 nm Semiconductor Laser Fiber
Distribution System and Mirror Tomography
Below threshold these Semiconductor |
|
|
12950
|
Tue Apr 25 19:35:41 2017 |
gautam | Update | General | IPCS -q | Dataviewer wouldn't launch on pianosa
- it seemed to work fine on Donatella though.
Rana suggested using the ipcs -q command. |
|
|
12951
|
Wed Apr 26 01:00:23 2017 |
gautam | Update | General | DRMI locking | Since we'd like to get back to DRSE
locking, I tried locking the DRMI tonight.
I did the following: |
|
|
12952
|
Thu Apr 27 16:41:13 2017 |
Eric Gustafson | Update | LSC | Status of the 40 m PD Frequency Response Fiber System | There two reports in the DCC describing
the state of the system as of October 2014
including: (1) Alex Cole’s “T1300618 |
|
|
12953
|
Thu Apr 27 17:55:33 2017 |
Steve | Update | Cameras | which camera to use for IR scatterring pictures | Yesterday I failed to take good pictures
of ETMY resonant arm of 1064 nm with
Cannon Rebel T3i in RAW 22-27Mp & JPG |
|
|
12954
|
Fri Apr 28 02:04:36 2017 |
gautam | Update | General | DRMI locking | I got a couple of ~30min long DRMI lock
stretches today. The settings I used are
essentially the same as what I had back in |
|
|
12955
|
Fri Apr 28 13:56:26 2017 |
rana | Update | General | DRMI locking | one of these signals does not look like
the others: explanation? |
|
|
12956
|
Fri Apr 28 18:01:56 2017 |
rebecca | Update | Cameras | Attempting to Load Camera Client | Using /ligo/apps/linux-x86-64/camera/bin/camera_client.py
-c /opt/rtcds/caltech/c1/scripts/GigE/SnapPy/L1-CAM-MC1.ini,
the Python script was able to run without |
|
|
12957
|
Fri Apr 28 19:32:06 2017 |
gautam | Update | General | DRMI locking - PRCL angular FF | I took a closer look at the POP QPD/ PRC
angular feedforward situation yesterday.
I thought it would be useful to have a |
|
|
12958
|
Fri Apr 28 22:50:35 2017 |
johannes | Update | Cameras | Attempting to Load Camera Client | You'll likely have to run camera_server.py
using the same ini file first before you
can use the client. Since the pylon installation |
|
|
12959
|
Sun Apr 30 13:24:00 2017 |
rana | Update | Cameras | Attempting to Load Camera Client | We ought to put the camera software on
the shared disk; I don't think there's
any speed reasons that it needs to be local. |
|
|
12960
|
Mon May 1 16:29:51 2017 |
gautam | Update | General | DRMI locking | For the traces I posted, I had not turned
on the whitening for the SRCL sensing PD
(REFL55). However, I took a spectrum on a |
|
|
12961
|
Mon May 1 17:14:58 2017 |
Steve | Update | Cameras | ETMY & MC2 ccd cameras removed | MC2 ccd camera is replaced by Olympus 570
zoom temporarly.
So as the ETMY ccd camera is replaced |
|
|
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. |
|
|
12963
|
Wed May 3 16:00:00 2017 |
gautam | Summary | General | Network Topology Check | [johannes, gautam]
I forgot we had done this last
year already, but we updated the control |
|
|
12964
|
Wed May 3 16:02:36 2017 |
Steve | Update | General | PI pzt inventory check | One is broken, two are ready to steer green
and 3 available in un known condition
|
|
|
12965
|
Wed May 3 16:12:36 2017 |
johannes | Configuration | Computers | catastrophic multiple monitor failures | It seems we lost |
|
|
12966
|
Wed May 3 16:46:18 2017 |
Koji | Configuration | Computers | catastrophic multiple monitor failures | - Is there any machine that can handle
4K? I have one 4K LCD for no use.
- I also can donate one 24" Dell |
|
|
12967
|
Wed May 3 16:47:45 2017 |
Koji | Update | General | PI pzt inventory check | I also have a functional one on my desk,
which has one of the wires repaired.
|
|
|
12968
|
Wed May 3 17:16:30 2017 |
Praful | Update | Electronics | New Altium Schematic Design for Microphone Amp | I made an Altium schematic for the microphone
amplifier circuit for fabrication.
mic_schematicv2.pdf |
|
|
12969
|
Wed May 3 18:45:45 2017 |
rana | Update | General | DRMI locking | [quote]Comparing counts doesn't get you anywhere;
each PD has different whitening gain which
may vary from measurement to measurement. |
|
|
12970
|
Thu May 4 08:00:54 2017 |
Steve | Update | safety | safety training | Freshmen Rebecca Zhang as " work study
undergrad " received 40m specific
basic safety training yesterday. |
|
|
12971
|
Thu May 4 09:52:43 2017 |
rana | Configuration | Computers | catastrophic multiple monitor failures | That's a new failure mode. Probably
we can't trust the power to be safe anymore.
Need Steve to order a couple |
|
|
12972
|
Thu May 4 19:03:15 2017 |
gautam | Update | General | DRMI locking - preliminary MICH NB | Summary:
|
|
|
12973
|
Fri May 5 08:41:42 2017 |
Steve | Update | Cameras | MC2 resonant pictures | Olympus SP570 UZ - without IR blocker,
set up as Atm.3 Camera distance to
MC face ~85 cm, IOO-MC_TRANS_SUM |
|
|
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 |
|
|
12975
|
Fri May 5 12:10:53 2017 |
gautam | Update | General | MICH NB questions | [quote]Is suspension thermal noise missing?
I take it "Thermal" refers just
to thermal things going on in the optic, |
|
|
12976
|
Sat May 6 21:52:11 2017 |
rana | Update | General | MICH NB questions | I think the most important next two items
to budget are the optical lever noise, and
the coil driver noise. The coil driver noise |
|
|
12977
|
Mon May 8 21:53:56 2017 |
rana | Summary | SEI | attempt to get seismic BLRMS minute trend | I tried to
get some minute trend data today, but was
unable to get it from inside or outside the |
|
|
12978
|
Tue May 9 15:23:12 2017 |
Steve | Configuration | Computers | catastrophic multiple monitor failures | Gautam and Steve,
Surge
protective power strip was install on |
|
|
12979
|
Wed May 10 01:56:06 2017 |
gautam | Update | General | MICH NB - OL coupling | Last night, I tried to estimate the contribution
of OL feedback signal to the MICH length
error signal.
In order to do so, |
|
|
12980
|
Wed May 10 12:37:41 2017 |
gautam | Update | CDS | MCautolocker dead | The MCautolocker had stalled - there were
no additional lines to the logfile after
12:17pm (~20mins ago). Normally, it suffices |
|
|
12981
|
Wed May 10 16:53:38 2017 |
rana | Update | General | MICH NB - OL coupling | That's a good find.
The OL control signal can
be gotten from the DQ error signal. You just |
|
|
12982
|
Wed May 10 16:57:52 2017 |
rana | Update | CDS | MCautolocker dead | I rebooted megatron around 12:20 today.
It had dozens of stalled medm process (some
of them there since February!). I couldn't |
|
|
12983
|
Wed May 10 17:17:05 2017 |
gautam | Update | General | DAC / Coil Driver noise | Suspension
Actuator noise:
There
are 3 main sources of electronics noise which |
|
|
12984
|
Wed May 10 17:46:44 2017 |
gautam | Update | General | DAC / Coil Driver noise - SRM coil driver + dewhite board removed | I've
removed the SOS coil driver (D010001-B, |
|
|
12985
|
Thu May 11 09:45:46 2017 |
rana | Update | General | DAC / Coil Driver noise - SRM coil driver + dewhite board removed | I believe the ETMs and ITMs are different
from the others. |
|
|
12986
|
Thu May 11 18:59:22 2017 |
gautam | Update | General | SRM coil driver + dewhite board initial survey | I've added marked-up schematics + high-res
photographs of the SRM coil driver board
and dewhitening board to the 40m DCC Document |
|
|
12987
|
Fri May 12 01:36:04 2017 |
gautam | Update | General | SRM coil driver + dewhite board LISO modeling | I've
made the LISO models for the dewhitening
board and coil driver boards I pulled out. |
|