| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
14051
|
Wed Jul 11 15:57:00 2018 |
aaron | Update | OMC | Reviving OMC electronics | Gautam showed me the electronics racks
for the OMC PZTs and DAQ. I'm in the
process of chasing down what channels we |
|
|
14052
|
Wed Jul 11 16:23:21 2018 |
aaron | Update | OMC | Coordination of the Output Mode-cleaner Mirror Insertion Expedition (COMMIE) | I started this document on my own with
notes as I was tracing the beam path through
the output optics, as well as some notes |
|
|
14053
|
Wed Jul 11 16:50:34 2018 |
pooja | Update | Cameras | Update in developing neural networks | Aim: To develop a neural
network that resolves mirror motion from |
|
|
14055
|
Thu Jul 12 11:13:39 2018 |
gautam | Update | General | OMC revival | Aaron and I are going to do the checkout
of the OMC electronics outside vacuum today.
At some point, we will also want to run a |
|
|
14056
|
Thu Jul 12 12:26:39 2018 |
aaron | Update | General | OMC revival | We found a diagram describing the DC Readout
wiring
scheme on the wiki page for DC |
|
|
14057
|
Thu Jul 12 14:06:39 2018 |
keerthana | Update | elog | Finesse and Analytical solution - Comparison | I tried to compare the cavity scan data
we get from the Finesse simulation and that
we expect from the Analytical solution. The |
|
|
14058
|
Thu Jul 12 15:15:47 2018 |
Sandrine | Update | | Beat Note Measurements for Cavity Scans | (Gautam, Sandrine)
We calculated the expected power
of the beat note for Annalisa's Y arm |
|
|
14059
|
Thu Jul 12 16:18:22 2018 |
Steve | Update | VAC | Vent preparations | We are getting ready to vent.
|
|
|
14060
|
Thu Jul 12 21:16:25 2018 |
aaron | Update | OMC | Checking OMC Electronics | In preparation for tomorrow's vent,
I'm checking some of the OMC-related
electronics we plan to use. |
|
|
14061
|
Thu Jul 12 23:59:14 2018 |
gautam | Update | General | Vent objectives and prep | Vent
objectives: |
|
|
14063
|
Fri Jul 13 02:52:11 2018 |
gautam | Update | General | Vent objectives and prep | [KA,
GV] |
|
|
14064
|
Fri Jul 13 10:54:55 2018 |
aaron | Update | VAC | Vent 80 | [aaron, steve]
Steve gave me a venting tutorial.
I'll record this in probably a bit more |
|
|
14066
|
Fri Jul 13 16:26:52 2018 |
Steve | Update | VAC | Vent 80 is completing... | Steve and Aaron,
6 hrs vent is reaching equlibrium
to room air. It took 3 and a half instrument |
|
|
14067
|
Fri Jul 13 17:13:45 2018 |
Koji | Update | General | Vent objectives and prep | Notice:
I removed these 75Ohm video cables. |
|
|
14068
|
Fri Jul 13 18:01:13 2018 |
gautam | Update | General | Low power MC | After getting the go ahead from Steve,
I removed the physical beam block on the
PSL table, sent the beam into the IFO, and |
|
|
14070
|
Fri Jul 13 23:23:49 2018 |
pooja | Update | Cameras | Update in developing neural networks | Aim: To develop a neural
network that resolves mirror motion from |
|
|
14072
|
Sat Jul 14 16:04:34 2018 |
aaron | Update | OMC | Checking OMC Electronics | Next check is the DCPD/OMMT Satellite
Box
I traced a cable from the
OMC electrical feedthrough flanges to find |
|
|
14074
|
Mon Jul 16 18:12:00 2018 |
Koji | Update | VAC | Adding a manual gate valve between TP1 and V1/VM2 | [Steve Koji]
We are in the process of adding
a manual gate valve between TP1 (Osaka Maglev) |
|
|
14075
|
Tue Jul 17 01:07:40 2018 |
gautam | Update | SUS | ETMY EQ stops | For the heater setup on EY table, I EQ-stopped
ETMY. Only |
|
|
14076
|
Tue Jul 17 12:46:28 2018 |
rana | Update | General | some notes from yesterday | For the EY, instead of balancing the table,
I just moved the weight approximately so
that the ETMY OSEMS were at half light, but |
|
|
14081
|
Wed Jul 18 03:14:48 2018 |
Annalisa | Update | General | Vent 80 recovery | [Gautam, Johannes, Koji, Annalisa]
Tonight we increased the power
of the PSL laser and we achieved the lock |
|
|
14084
|
Wed Jul 18 23:43:50 2018 |
Koji | Update | General | Vent 80 recovery | Is the reflector too close to the beam
and causing clipping?
|
|
|
14089
|
Thu Jul 19 18:09:17 2018 |
pooja | Update | Cameras | Update in developing neural networks | Aim: To develop a neural
network that resolves mirror motion from |
|
|
14092
|
Fri Jul 20 22:51:28 2018 |
Koji | Update | IOO | IMC WFS path alignment | IMC WFS tuning
- IMC was aligned manually to have
maximum output and also spot at the center |
|
|
14093
|
Fri Jul 20 22:53:15 2018 |
Koji | Update | ASS | Attempt to resurrect Yarm ASS | [Koji Gautam]
We managed to realize stable
ASS configuration for Yarm. The transmission |
|
|
14095
|
Sat Jul 21 01:14:02 2018 |
gautam | Update | OMC | PZT Jena driver board check | [Aaron, gautam]
We did a quick check of this
board today. Main takeaways: |
|
|
14097
|
Sun Jul 22 14:01:07 2018 |
pooja | Update | Cameras | Developing neural networks on simulated video | Aim: To develop a neural
network that resolves mirror motion from |
|
|
14100
|
Tue Jul 24 06:11:50 2018 |
rana | Update | Cameras | Developing neural networks on simulated video | This looks like good progress. Instead
of fixed sines or random noise, you should
generate now a time series for the motion |
|
|
14101
|
Tue Jul 24 09:47:51 2018 |
gautam | Update | Cameras | Developing neural networks on simulated video | I was thinking a little more about the
way we are training the network for the current
topology - because the network has no recurrent |
|
|
14105
|
Thu Jul 26 01:52:01 2018 |
terra | Update | Thermal Compensation | heater work update | Just a quick update: over the past few
days we've taken (at least) 5 scans around
each peak [carrier - HOM3] at 9.4V/0.8A, |
|
|
14106
|
Thu Jul 26 15:11:18 2018 |
Steve | Update | General | Viewports & coating of 2001 | New optical quality BK-7 windows in 2001
[4 substrates ] AR coated R<0.75 % for
630-1064nm " |
|
|
14107
|
Fri Jul 27 02:30:51 2018 |
gautam | Update | General | Glitchy MC | Kevin and I saw some weird IMC / PEM BLRMS
behaviour today - see Attached screenshot.
Not sure what was happening with the IMC, |
|
|
14108
|
Fri Jul 27 10:48:57 2018 |
Steve | Update | SUS | BS oplev window | Yesterday I inspected this BS oplev viewport.
The heavy connector tube was shorting to
table so It was moved back towards the chamber. |
|
|
14109
|
Fri Jul 27 17:16:14 2018 |
Sandrine | Update | Thermal Compensation | Copied working scripts for mode spectroscopy into new directory (modeSpec) | The scripts: AGfast.py, make HDF5.py, plotSpec_marconi.py,
and SandrineFitv3.py were copied into the
new directory modeSpec. |
|
|
14111
|
Sat Jul 28 22:16:49 2018 |
John Martyn | Update | | Characterization of Transimpedance Amplifier | Kevin and I meaured the transfer function
of the photodiode circuit using the Jenne
laser and agilent in the 40m lab. The attached |
|
|
14112
|
Sun Jul 29 00:59:54 2018 |
Koji | Update | Electronics | Characterization of Transimpedance Amplifier | You have this measurement problem when
the IF bandwidth is larger than the measurement
frequency. I suspect the IF bandwidth is |
|
|
14113
|
Sun Jul 29 20:03:02 2018 |
rana | Update | PEM | Seismometer temp control | While Shruti is re-building Kira's
heater circuit, I looked up how to do one
of these (i.e. what does a real EE say about |
|
|
14114
|
Sun Jul 29 23:15:34 2018 |
pooja | Update | Cameras | Developing CNN | Aim: To develop a convolutional
neural network that resolves mirror motion |
|
|
14115
|
Mon Jul 30 11:05:44 2018 |
gautam | Update | SUS | IFO SUS wonky | When I came in this morning:
PMC was unlocked.
Seis
BLRMS were off scale.
ITMX OSEM |
|
|
14117
|
Mon Jul 30 16:11:54 2018 |
gautam | Update | SUS | Trillium interface box is broken | [koji,
steve, gautam] |
|
|
14118
|
Mon Jul 30 18:19:03 2018 |
Koji | Update | SUS | Trillium interface box was fixed and reinstalled | The trillium interface box was removed
from the rack.
The |
|
|
14119
|
Tue Jul 31 08:17:55 2018 |
Steve | Update | SUS | Trillium interface box was fixed,reinstalled & working |
|
|
|
14120
|
Tue Jul 31 22:50:18 2018 |
aaron | Update | OMC | OMC Expected Refl Signal | I learned a lot about lasers this week
from Siegman. Here are some plots that show
the expected reflectivity off of the OMC |
|
|
14124
|
Thu Aug 2 16:30:08 2018 |
Steve | Update | Treasure | time capsule location | I 've just found this time capsule
note from Nov. 26, 2000 by Kip Thorne:
LIGO will discover gravitational waves by |
|
|
14129
|
Fri Aug 3 15:53:25 2018 |
gautam | Update | SUS | Low noise bias path idea | Summary:
The idea we are going with to push
the coil driver noise contribution down is |
|
|
14130
|
Fri Aug 3 16:27:40 2018 |
rana | Update | SUS | Low noise bias path idea | Bah! Too complex. |
|
|
14131
|
Fri Aug 3 18:54:58 2018 |
gautam | Update | SUS | Glitchy MC1 | The wall StripTool indicated that the IMC
wasn't too happy when I came in today.
Specifically: |
|
|
14132
|
Fri Aug 3 19:02:11 2018 |
gautam | Update | ASS | X arm ASS recovery | [koji,
gautam]
After I effected the series resistance |
|
|
14133
|
Sun Aug 5 13:28:43 2018 |
gautam | Update | CDS | c1lsc flaky | Since the lab-wide
computer shutdown last Wednesday, all
the realtime models running on c1lsc have |
|
|
14134
|
Sun Aug 5 13:45:00 2018 |
gautam | Update | SUS | ETMX tripped | Independent from the problems the vertex
machine has been having (I think, unless
it's something happening over the shared |
|