| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
8663
|
Sat Jun 1 14:14:56 2013 |
Jenne | Update | ASC | New POP path | I have a lens solution for the new POP
QPD, plotted below. To get the beam
size, I started with the waist at the ITM, |
|
|
8662
|
Fri May 31 11:15:01 2013 |
Annalisa | Update | endtable upgrade | ETMY - Mode Matching for green - new calculation | Since the beam waist after the Faraday
had changed since the last time I measured
it (maybe alignment changed a bit), I made |
|
|
8661
|
Fri May 31 10:25:17 2013 |
steve | Update | safety | first aid kits refilled |
|
|
|
8660
|
Thu May 30 20:45:53 2013 |
Annalisa | Update | endtable upgrade | ETMY - oplev |
|
|
|
8659
|
Thu May 30 18:29:21 2013 |
Manasa | Update | General | ALS medm screens edited | Renaming of the c1gcv model earlier (elog
7011) had left white boxes in most of |
|
|
8658
|
Thu May 30 17:18:58 2013 |
Jenne | Update | ASC | New POP path | I have placed the G&H mirrors and the
Y1 as pictured in my proposed layout in elog |
|
|
8657
|
Thu May 30 11:33:26 2013 |
Jamie | Configuration | Computer Scripts / Programs | ASS medm/model changes need to be committed to SVN | There are a lot of changes to the ASS stuff
that have not been committed to the SVN:
controls@rossa:/opt/rtcds/userapps/release/isc/c1 |
|
|
8656
|
Thu May 30 11:28:34 2013 |
Jamie | Configuration | CDS | c1als model cleanup | The c1als model was pulling out some ADC0
connections that were no longer used for
anything: |
|
|
8655
|
Thu May 30 11:10:00 2013 |
Steve | Update | endtable upgrade | ETMY - oplev |
|
|
|
8654
|
Thu May 30 10:40:59 2013 |
Jamie | Configuration | CDS | Attempt to cleanup c1ioo ADC connections | I have attempted to reconcile all of the
ADC connections to c1ioo. Upon close
inspection, it appears that there was a lot |
|
|
8653
|
Thu May 30 01:02:41 2013 |
Manasa | Update | Green Locking | Found it! | X green beat note
found! |
|
|
8652
|
Tue May 28 22:11:23 2013 |
Annalisa | Update | 40m upgrading | ETMY - Yarm shutter cable |
For some strange reason the
Yarm shutter cable runs up to the POY table, |
|
|
8651
|
Tue May 28 19:35:17 2013 |
Manasa | Update | Green Locking | Still searching for the X green beat note | Procedure
1. Aligned X-arm to IR.
2. Aligned green to the X-arm. |
|
|
8650
|
Tue May 28 17:06:04 2013 |
Koji | Update | LSC | PRMI sensing matrix: Got it! | - We want to add POX11/POY11 in the collection.
They may indicates some abnormal asymmetry
between two arms (for PRMI). |
|
|
8649
|
Tue May 28 17:00:50 2013 |
Jenne | Update | ASC | Proposed POP path, to be installed this evening | I have mounted 2 2" G&H high reflective
mirrors, to be used in the new POP path.
Manasa and Annalisa are doing green things |
|
|
8648
|
Tue May 28 14:52:56 2013 |
Jenne | Update | LSC | PRMI sensing matrix: Got it! | Just so we have it, here is the re-analysis
with the correct plot and phases for the
May 21st data, taken near the violin mode: |
|
|
8647
|
Tue May 28 11:11:37 2013 |
Manasa | Update | IOO | MC aligned | [Jenne, Manasa]
Fixed crappy alignment of MC by moving
MC mirrors. MC REFL PD measured 0.5 after |
|
|
8646
|
Mon May 27 21:38:53 2013 |
Annalisa | Update | 40m upgrading | ETMY - Beam Dumps |
I put many razor dumps along the
IR/green path. The rejected beam from the |
|
|
8645
|
Sat May 25 02:03:48 2013 |
Annalisa | Update | 40m upgrading | ETMY - Mode Matching for green - new calculation | Mode
matching calculation for green - Yarm
I |
|
|
8644
|
Fri May 24 22:18:33 2013 |
Jenne | Update | LSC | PRMI sensing matrix: Got it! | Okay, I think I am finished with the sensing
matrix scripts!
I had the syntax for atan2() wrong, |
|
|
8643
|
Fri May 24 14:44:34 2013 |
Jenne | Update | General | Rossa freezes all the time | I am getting tired of having to restart
Rossa all the time. She freezes almost
once per day now. Jamie has looked |
|
|
8642
|
Fri May 24 14:40:22 2013 |
Jenne | Update | LSC | PRMI sensing matrix: now what? |
|
|
|
8641
|
Fri May 24 14:01:59 2013 |
Koji | Update | LSC | PRMI sensing matrix measured at 580.1Hz | It's hard to believe but is AS55Q really
almost insensitive to MICH?
Well, anyway, now it is the time |
|
|
8640
|
Fri May 24 13:41:19 2013 |
Jenne | Update | LSC | PRMI sensing matrix measured at 580.1Hz | "0 degrees" is 0 degrees of demod
phase. I have now added the PD demod
phases to the plot: |
|
|
8639
|
Fri May 24 12:50:25 2013 |
Annalisa | Update | 40m upgrading | ETMY - Mode Matching for green |
|
|
|
8638
|
Fri May 24 11:38:00 2013 |
Koji | Update | 40m upgrading | ETMY - Mode Matching for green | I got confused. Is the mode calculation
in the cavity correct?
Are you sure the wavelength in the |
|
|
8637
|
Fri May 24 02:12:50 2013 |
Annalisa | Update | 40m upgrading | ETMY - Mode Matching for green |
Mode
Matching calculation for green beam - Yarm |
|
|
8636
|
Thu May 23 22:13:12 2013 |
Koji | Update | LSC | PRMI sensing matrix measured at 580.1Hz | Can you clarify the definition of the phase
"0deg" of your plot?
Is "I" the definition of |
|
|
8635
|
Thu May 23 21:45:51 2013 |
Jenne | Update | LSC | Sensing matrix scripts now check for lockloss | A few more small mods to the sensing matrix
script. Now the script saves the data
after each measurement, so that in case you |
|
|
8634
|
Thu May 23 20:58:49 2013 |
Jenne | Update | PEM | PRM, ITMX optics tripped, restored |
M5.7
- 11km WNW of Greenville, California
Time2013-05-23 |
|
|
8633
|
Thu May 23 20:39:50 2013 |
Jenne | Update | LSC | PRMI sensing matrix measured at 580.1Hz | I locked the PRMI and remeasured the sensing
matrix, this time at 580Hz. The excellent
news here is that the matrix looks quite |
|
|
8632
|
Thu May 23 19:09:15 2013 |
Jenne | Update | LSC | Sensing matrix scripts modified to include actuator calibration | After fixing up my calculations in my scripts,
I have calculated the final PRMI sensing
matrix (as measured very close to the violin |
|
|
8631
|
Thu May 23 17:51:39 2013 |
Koji | Summary | LSC | My usual locking procedure | For purpose of the automation and my record,
I summarized my locking procedure as a chart. |
|
|
8630
|
Thu May 23 14:45:08 2013 |
Jenne | Update | LSC | Sensing matrix scripts calculations make more sense now | I think I have most of the magnitude issues
figured out now.
First of all, the lockin outputs |
|
|
8629
|
Thu May 23 13:14:34 2013 |
Koji | Summary | LSC | Xarm beat note search continues | We should consider to hook up the temperature
monitors of the NPROs to the ADCs. |
|
|
8628
|
Thu May 23 12:02:48 2013 |
Steve | Update | endtable upgrade | ETMY - oplev | Temporary oplev in place. The spot
on the qpd is still big. My two lens solution
did not work. |
|
|
8627
|
Thu May 23 10:48:42 2013 |
Manasa | Update | IOO | MC autolocker and MCWFS enabled | Some strong seismic noise (not related
to any earthquakes - watchdogs are all green)
had got the MC unlocked this morning. |
|
|
8626
|
Thu May 23 10:24:23 2013 |
Jamie | Summary | CDS | c1scy model continues to run at the hairy edge | c1scy, the controller model at the Y END,
is still running very long, typically at
55/60 microseconds, or ~92% of it's cycle. |
|
|
8625
|
Thu May 23 10:20:33 2013 |
Jamie | Update | SUS | Turn off zero padding in DAC outputs |
|
|
|
8624
|
Thu May 23 01:27:11 2013 |
Manasa | Summary | LSC | Xarm beat note search continues | Towards finding the x-arm beat note:
The green would not lock to a maximum |
|
|
8623
|
Thu May 23 00:49:13 2013 |
Jenne | Update | LSC | LSC filters loaded |
|
|
|
8622
|
Thu May 23 00:16:32 2013 |
Annalisa | Update | 40m upgrading | ETMY - progress | [Annalisa, Koji]
GREEN |
|
|
8621
|
Wed May 22 20:50:26 2013 |
Jenne | Update | LSC | Sensing matrix scripts don't calculate correctly | I am trying to re-analyze the data that
Koji took last night.
I think that my script is just pulling |
|
|
8620
|
Wed May 22 18:24:19 2013 |
Jenne | Update | SUS | Violin mode survey |
|
|
|
8619
|
Wed May 22 18:07:36 2013 |
Jenne | Update | LSC | Kiwamu's sensing matrix measurement script revived |
To avoid exciting at the PRM
violin mode frequency, I have changed all |
|
|
8618
|
Wed May 22 17:29:34 2013 |
Jenne | Update | ASC | QPD for POP ASC tested | I fiddled around with the QPD that I'll
use to replace Koji's temporary razor blade
yaw sensor for detecting POP beam angular |
|
|
8617
|
Wed May 22 15:48:56 2013 |
Jamie | Update | SUS | Turn off zero padding in DAC outputs | After the results of the analysis in the
#8598
thread, I have added the "no_zero_pad=1" |
|
|
8616
|
Wed May 22 15:08:37 2013 |
Koji | Summary | CDS | Weird DAC bit flipping at half integer output values | It seems that the effect is from the (linear)
residual fluctuation of the digital AI filter
for the zero-padded signal. |
|
|
8615
|
Wed May 22 11:35:06 2013 |
Jamie | Summary | CDS | Weird DAC bit flipping at half integer output values |
|
|
|
8614
|
Wed May 22 11:21:28 2013 |
Koji | Summary | CDS | Weird DAC bit flipping at half integer output values | Is this limit cycle caused by the residual
of the digital AI filtering at the half sampling
freq and that his the threshold? |
|