| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
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? |
|
|
8613
|
Wed May 22 11:09:33 2013 |
Jamie | Summary | CDS | Weird DAC bit flipping at half integer output values | After querying CDS folks about this issue,
I got some responses that indicated the problems
was likely limit-cycle oscillations due to |
|
|
8612
|
Wed May 22 00:42:13 2013 |
Koji | Summary | SUS | violin Q | While looking at the decay of the violin
mode of the PRM, I made a simple measurement
of the decay rate. |
|
|
8611
|
Wed May 22 00:08:19 2013 |
Koji | Update | LSC | Sensing matrix scripts modified to include actuator calibration | It
was too embarassing to see that the actuation
frequency was set at the violin mode frequency |
|
|
8610
|
Tue May 21 23:29:57 2013 |
Manasa | Update | Green Locking | Xend Green aligned | X-green and PSL green have been aligned
so that they interfere at the beat PD for
X. |
|
|
8609
|
Tue May 21 18:22:18 2013 |
Jenne | Update | LSC | Sensing matrix scripts modified to include actuator calibration | The PRMI sensing matrix scripts have been
modified to output a sensing matrix which
is calibrated into units of counts/meter. |
|
|
8608
|
Tue May 21 18:18:28 2013 |
Jamie | Update | Computer Scripts / Programs | netGPIB stuff update/modernized/cleanedup/improved | I did a bunch of cleanup work on the netGPIB
stuff:
Removed extensions from |
|
|
8607
|
Tue May 21 18:18:23 2013 |
Manasa | Update | Green Locking | Xend Green aligned | X arm aligned to green.
Aligned the X arm to IR.
Used steering mirrors to align the |
|
|
8606
|
Tue May 21 17:03:45 2013 |
Steve | Update | endtable upgrade | enclosure tops are sealed |
|
|
|
8605
|
Tue May 21 16:23:06 2013 |
Manasa | Update | General | 40MARS wireless network problem RETURNS |
|
|
|
8604
|
Tue May 21 14:50:52 2013 |
Max Horton | Update | | Importing New Code | There was an issue with running the new
summary pages, because laldetchar was not
included (the website I used for instructions |
|
|
8603
|
Tue May 21 14:48:08 2013 |
Jenne | Update | LSC | PRMI sensing matrix - not high quality data | The PRMI sensing matrix, as measured last
Thursday, in a more readable format:
EDIT: DON'T Look at this |
|
|
8602
|
Mon May 20 18:50:22 2013 |
Jenne | Update | LSC | Kiwamu's sensing matrix measurement script revived | So that I don't have to do loop compensation
every time I measure a sensing matrix, I
have put (back) in notches into FM10 of all |
|
|
8601
|
Mon May 20 18:47:47 2013 |
Koji | Update | LSC | PRMI sensing matrix - not high quality data | For now forget about the demodulation phase
and assume all of the ports are independent.
|
|
|
8600
|
Mon May 20 17:49:36 2013 |
Jenne | Update | LSC | PRMI sensing matrix - not high quality data | Just so we have some numbers, I did a by-hand
analysis of the PRMI sensing matrix numbers
I posted here in the elog the other day. |
|
|
8599
|
Fri May 17 19:56:52 2013 |
Koji | Summary | CDS | Weird DAC bit flipping at half integer output values | Let me make a complimentary comment on
this effect.
Because of this oscillation feature, |
|
|
8598
|
Fri May 17 18:58:58 2013 |
Jamie, Koji | Summary | CDS | Weird DAC bit flipping at half integer output values | While looking at the DAC anti-imaging filters,
Koji noticed an odd feature of the DAC output:
|
|
|
8597
|
Fri May 17 18:24:04 2013 |
Annalisa | Update | 40m upgrading | ETMY - progress | I aligned the green beam into the Faraday.
I needed an HWP to have the right polarization
for the light entering the Faraday itself. |
|
|
8596
|
Fri May 17 16:06:14 2013 |
rana | Update | 40m upgrading | ETMY op table disabled |
TODO:
We need to replace all |
|
|
8595
|
Fri May 17 15:38:51 2013 |
Steve | Update | 40m upgrading | ETMY enclosure is on the way back |
It will arrive around 10 am Monday morning. |
|
|
8594
|
Fri May 17 00:32:32 2013 |
Annalisa | Update | 40m upgrading | ETMY - progress | [Rana, Annalisa]
GREEN |
|
|
8593
|
Thu May 16 23:48:39 2013 |
Jenne | Update | LSC | Kiwamu's sensing matrix measurement script revived | Koji locked the PRMI for me, and I took
some data. I haven't finished figuring
out what to do with it / writing a processing |
|
|
8592
|
Thu May 16 22:03:16 2013 |
Koji | Configuration | LSC | Y Green BBPD returned to the PSL table | I borrowed the GTRY BBPD for the
REFL165 trial before.
Now the PD is back on the PSL table. |
|
|
8591
|
Thu May 16 11:50:25 2013 |
Koji | Configuration | Electronics | Measurement and empirical models of the AI board TFs | Yesterday, I pulled out the AI board
for the PRM/BS SUSs. (After the investigation
it was restored) |
|
|
8590
|
Thu May 16 08:32:05 2013 |
Steve | Update | 40m upgrading | ETMY op table disabled |
All ETMY optical table electronics-
lasers-pds turned off, disconnected in order |
|
|
8589
|
Thu May 16 04:46:37 2013 |
Jenne | Update | LSC | Kiwamu's sensing matrix measurement script revived | Kiwamu had an old set of scripts for
measuring
the sensing matrices, but they were |
|
|
8588
|
Thu May 16 02:34:38 2013 |
rana | Update | Computer Scripts / Programs | AutoRUN GUI resurrected | We talked about the thing that watches
the scripts for autolocking during the meeting
today. |
|
|
8587
|
Thu May 16 01:41:31 2013 |
Jenne | Summary | IOO | FSS gain settings set |
|
|
|
8586
|
Wed May 15 23:38:04 2013 |
rana | Update | elog | categories trimmed | I deleted a bunch of useless categories
from the 40m elogd.cfg file. IF you find
your category has been deleted, you can now |
|
|
8585
|
Wed May 15 22:47:11 2013 |
Jamie | Summary | CDS | Accounting of ADC/DAC channel availability |
|
|
|
8584
|
Wed May 15 21:27:39 2013 |
Annalisa | Update | 40m Upgrading | Endtable upgrade for auxiliary green laser : progress |
GREEN
I still have problems in maximizing |
|
|
8583
|
Wed May 15 19:32:04 2013 |
rana | Summary | CDS | Accounting of ADC/DAC channel availability |
|
|
|
8582
|
Wed May 15 17:48:25 2013 |
Jamie | Update | CDS | misc problems noticed in models | I noticed a couple potential issues in
some of the models while I was investigating
the ADC/DAC situation: |
|
|
8581
|
Wed May 15 17:38:49 2013 |
Jamie | Summary | CDS | AA/AI requirements |
|
|
|
8580
|
Wed May 15 17:17:05 2013 |
Jamie | Summary | CDS | Accounting of ADC/DAC channel availability | We need ADC and DAC channels for a couple
of things:
POP QPD: 3x ADC
|
|
|
8579
|
Wed May 15 15:33:49 2013 |
Steve | Update | General | On-Track QPD | I tested On-Track (from LLO) OT
301 amp with PSM2-10 qpd. It was
responding. Jenne will calibrate it. |
|
|
8578
|
Wed May 15 08:29:28 2013 |
Steve | Configuration | RF System | fiber protection at splitter box area | I positioned the fiber loaded protecting
tubing and anchored them so they can do their
job. |
|
|
8577
|
Wed May 15 00:45:28 2013 |
rana | Configuration | LSC | Openloop gain for PRMI lock May 13 |
Pfft. |
|
|
8576
|
Tue May 14 21:03:15 2013 |
Annalisa | Update | 40m Upgrading | Endtable upgrade for auxiliary green laser : progress |
GREEN
The new lenses arrived, and I put |
|
|
8575
|
Tue May 14 20:30:29 2013 |
Jamie | Summary | IOO | MC error spectrum at various FSS gain settings. | I used the Agilent 4395A and the GPIB network
bridge to measure the MC error spectrum at
the MC servo board. |
7x |