| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
17805
|
Wed Aug 23 16:52:52 2023 |
Paco, Radhika, Murtaza | Update | ASS | Reducing XARM-ASS Errors | We're trying to reduce the demodulated
error signals after running the ASS script
for the XARM. |
|
|
17820
|
Fri Sep 1 18:06:35 2023 |
Paco, Radhika, Murtaza | Update | ASS | Reducing XARM-ASS Errors | [Radhika, Murtaza]
XARM ASS
We |
|
|
17825
|
Tue Sep 5 11:04:33 2023 |
rana | Update | ASS | Reducing XARM-ASS Errors | I recommend usinng the DC offset method
that Koji and I used for measuring the IMC
WFS sensing matrix (not the AC method that |
|
|
17828
|
Wed Sep 6 12:53:11 2023 |
Paco, Radhika, Murtaza | Update | ASS | Reducing XARM-ASS Errors | [Radhika, Murtaza]
To create the sensing matrix, we
tried the DC offset method by giving offsets |
|
|
17832
|
Thu Sep 7 18:42:02 2023 |
Paco, Radhika, Murtaza | Update | ASS | Reducing XARM-ASS Errors | [Radhika, Murtaza]
We recalculated the sensing matrix
for XARM ASS by collecting each sensor's |
|
|
17835
|
Sat Sep 9 16:25:07 2023 |
Radhika | Update | ASS | Reducing XARM-ASS Errors | [Radhika, Murtaza]
This post summarizes XARM ASS efforts
from Friday 9/8 and Saturday 9/9. |
|
|
17836
|
Mon Sep 11 19:35:27 2023 |
Radhika | Update | ASS | Reducing XARM-ASS Errors | [Radhika, Murtaza, Paco]
Today we decided to take a closer
look at the demod phases of the T and L error |
|
|
17903
|
Tue Oct 17 19:35:31 2023 |
Radhika | Update | ASS | Reducing XARM-ASS Errors | I resumed work to
restore XARM ASS
I manually |
|
|
17924
|
Thu Oct 26 19:40:57 2023 |
Radhika | Update | ASS | XARM ASS Working | XARM ASS Fixed (hopefully)
The
winning approach was considering T and L |
|
|
2
|
Thu Oct 18 14:52:35 2007 |
rana | Routine | ASC | test | [B]test[/B]
[LINE]X-(:P;(:)) |
|
|
168
|
Wed Dec 5 18:08:36 2007 |
Andrey | Update | ASC | Optical Lever laser for ETMX is installed |
A new laser with \lambda=633nm has been intalled
and the mirror adjusted so that the signal |
|
|
253
|
Tue Jan 22 13:11:03 2008 |
tobin | Update | ASC | ETMY oplev recentered | The light wasn't even on the diode. |
|
|
469
|
Thu May 8 01:50:25 2008 |
rana | Summary | ASC | Arm Cavity HOM Resonances | Nothing new, but I calculated the frequencies
of the first 22 higher order transverse modes
and thought I might as well list them here.
|
|
|
1178
|
Fri Dec 5 01:58:58 2008 |
Yoichi | Configuration | ASC | tdscntr.pl now works at 40m | Tobin gave me the perl version of tdscntr
some time ago.
Pinkesh and I modified and tested it at LHO.
|
|
|
1210
|
Thu Jan 1 00:55:39 2009 |
Yoichi | Update | ASC | Alignment scripts for Linux | A Happy New Year.
The dither alignment scripts did not run |
|
|
1237
|
Mon Jan 19 13:58:53 2009 |
Yoichi | Update | ASC | Better ditherServo.pl | Nick Smith (@LHO) tested the ditherServo.pl
at Hanford.
He added options to specify exit conditions |
|
|
1412
|
Fri Mar 20 12:07:19 2009 |
Yoichi | Configuration | ASC | ETMY beam centering | I forgot to put this in the elog.
Last Sunday night, I centered the beam on
the ETMY because it was too low.
|
|
|
1595
|
Sun May 17 21:45:40 2009 |
rob | Update | ASC | ITMX oplev centered | |
|
|
2105
|
Fri Oct 16 16:08:00 2009 |
rob | Configuration | ASC | loop opened on PZT2 YAW at 3:40 pm | I pushed the "closed loop" button
on PZT2 YAW around 3:40 pm today, then roughly
recentered it using the DC Offset knob on |
|
|
2107
|
Fri Oct 16 18:46:36 2009 |
rana | Configuration | ASC | loop opened on PZT2 YAW at 3:40 pm |
|
|
|
2109
|
Sun Oct 18 16:09:34 2009 |
rana | Configuration | ASC | loop opened on PZT2 YAW at 3:40 pm |
I wanted to see how long our IP POS
beam has been badly clipped - turns out its |
|
|
2205
|
Sun Nov 8 22:50:29 2009 |
Alberto | Update | ASC | IFO Alignment | Tonight I aligned the IFO by running the
scripts one by one.
SRC was far off and I had to align |
|
|
3191
|
Mon Jul 12 02:21:01 2010 |
Koji | Configuration | ASC | Resurrection of MC WFS | I have resurrected the MC WFS on Friday
night.
I have uncommented the WFS part of |
|
|
4087
|
Wed Dec 22 15:30:47 2010 |
Osamu | Update | ASC | ETMY oplev fixed | According to c1scy.mdl, OL signals should
be connected to adc_0_24 to adc_0_27 but
they were connected to adc_0_16 to adc_0_19 |
|
|
4280
|
Sun Feb 13 16:50:17 2011 |
kiwamu | Update | ASC | IP_ANG was at wrong ADC | I found that |
|
|
4287
|
Mon Feb 14 12:37:23 2011 |
kiwamu | Update | ASC | no signal from IP_ANG_Seg1 | It turns out there are no reasonable
signal from the segment 1 on the IP_ANG QPD.
|
|
|
4294
|
Tue Feb 15 02:13:16 2011 |
kiwamu | Summary | ASC | a daytime task : small signals on ETMX OL | Rana
and I found that the QPD for the optical
lever at X end are showing small signals. |
|
|
4295
|
Tue Feb 15 03:10:37 2011 |
kiwamu | Update | ASC | IR beam alignment for Xarm : TRX reduction | I tried aligning the IR beam axis for
the X arm to have good beam centering on
ITMX and ETMX. |
|
|
4296
|
Tue Feb 15 06:15:07 2011 |
Suresh | Update | ASC | no signal from IP_ANG_Seg1 | [Valery, kiwamu, Jenne, Suresh]
I first interchanged
the two QPD's on the Y end table to see if |
|
|
4306
|
Wed Feb 16 02:04:11 2011 |
kiwamu | Update | ASC | IR beam alignment | [Jenne and Kiwamu]
This time we aligned the vertical |
|
|
4355
|
Fri Feb 25 01:48:54 2011 |
valera | Update | ASC | mc auto alignment status | I made several scripts to handle
the mcass configuration and sensing measurements:
- The scripts and data are in the |
|
|
4673
|
Tue May 10 00:31:28 2011 |
kiwamu | Update | ASC | IFO alignment plan | The alignment of the interferometer
goes basically step by step.
Tuesday will be an alignment day. |
|
|
4684
|
Wed May 11 00:23:21 2011 |
kiwamu | Update | ASC | Y arm and beam pointing alignment | [Jamie / Valera / Kiwamu]
The incident |
|
|
4769
|
Mon May 30 23:14:27 2011 |
valera | Update | ASC | Y arm initial alignment | I closed all 8 dither loops for the Y arm
initial alignment: 2x2 centering servo (this
worked before) and 2x2 input beam servo for |
|
|
4883
|
Sat Jun 25 04:40:43 2011 |
Suresh | Update | ASC | WFS1 Transimpedance measurement | WFS1 Transimpedance
The
attached plots show the location of the ~29.5
MHz pole and the 59 MHz notch for each quadrant |
|
|
5062
|
Fri Jul 29 16:25:06 2011 |
kiwamu | Update | ASC | beam axis and Y arm aligned | Last night
I aligned the incident beam axis and the |
|
|
5067
|
Sat Jul 30 06:24:06 2011 |
kiwamu | Update | ASC | Y arm ASS fixed | The servos
of C1ASS for the Y arm and the beam axis |
|
|
5068
|
Sat Jul 30 07:07:28 2011 |
kiwamu | Update | ASC | MCASS status | Since
we will measure (and hopefully adjust) the
spot positions on the MC suspensions prior |
|
|
5073
|
Sat Jul 30 21:04:23 2011 |
kiwamu | Update | ASC | Y arm ASS fixed | The
X arm ASS was also fixed. So both X and Y
arm ASS are now back to normal. |
|
|
5083
|
Mon Aug 1 17:47:37 2011 |
steve | Update | ASC | what is not working | SUS-ETMY_QPD is not responding. It is reading
zero in dataviewer and 4,400 counts on QPD
MEDM screen.......must be wrong cable connected |
|
|
5374
|
Sat Sep 10 01:36:15 2011 |
kiwamu | Update | ASC | interferometer coarsely aligned | The
interferometer was coarsely aligned.
Now |
|
|
5518
|
Thu Sep 22 13:56:56 2011 |
kiwamu | Update | ASC | C1ASS : status update | The output
matrix in the C1ASS servo were coarsely readjusted |
|
|
5543
|
Mon Sep 26 12:41:27 2011 |
kiwamu | Update | ASC | C1ASS : status update |
|
|
|
5574
|
Thu Sep 29 03:43:20 2011 |
kiwamu | Update | ASC | wrong channel assignment on IPPOS | The
channels for IPPOS had been assigned in a
wrong way. |
|
|
5578
|
Fri Sep 30 01:18:39 2011 |
kiwamu | Update | ASC | C1ASS : status update | Now
the C1ASS servos are working fine.
However |
|
|
5605
|
Mon Oct 3 17:57:12 2011 |
kiwamu | Update | ASC | IPPOS fixed | The
input matrix of IPPOS were fixed so that
the horizaontal motion correctly shows up |
|
|
5817
|
Sat Nov 5 00:04:23 2011 |
kiwamu | Update | ASC | ASS scripts gone | Did
somebody delete all the scripts in /opt/rtcds/caltech/c1/scripts/ASS |
|
|
5818
|
Sat Nov 5 00:24:13 2011 |
Suresh | Update | ASC | ASS scripts gone |
|
|
|
5821
|
Sat Nov 5 14:54:59 2011 |
Koji | Update | ASC | ASS scripts gone | In any case, the daily backup of the scripts
are found in /cvs/cds/caltech/scripts_archive. |
|
|
6288
|
Thu Feb 16 09:59:16 2012 |
steve | Update | ASC | IP- ANG | Initial pointing or IP-ANG is a pointing
monitor of the MC. This beam is launched
after the second pzt steering |
|