| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
8436
|
Wed Apr 10 14:25:04 2013 |
Manasa | Update | 40m Upgrading | Endtable upgrade for auxiliary green laser : LWE Alberto laser beam profile | I measured the beam profile of the Alberto
laser (that will be the ETMY end laser) as
I found the data inconsistent with the measurements |
|
|
8458
|
Wed Apr 17 02:20:13 2013 |
Manasa | Update | 40m Upgrading | Endtable upgrade for auxiliary green laser : progress |
Assembly progress:
1. ETMY oplev setup has been put |
|
|
8472
|
Mon Apr 22 17:43:09 2013 |
Steve | Update | 40m Upgrading | ETMY optical table & enclosure is ready for optics |
|
|
|
8473
|
Mon Apr 22 19:48:56 2013 |
Jenne | Update | 40m Upgrading | 4 pins enough? | Are 4 of these spring loaded pins enough?
I'm not sure how one pin can hold 2 lids
at each point. It seems like we need |
|
|
8475
|
Tue Apr 23 15:00:20 2013 |
Jenne | Update | 40m Upgrading | 4 pins enough? |
|
|
|
8486
|
Wed Apr 24 15:27:59 2013 |
Manasa | Update | 40m Upgrading | Endtable upgrade for auxiliary green laser : progress: New layout | Layout that will be improved upon over
the next few days.
Things that need to be updated: |
|
|
8522
|
Thu May 2 01:19:41 2013 |
Manasa | Update | 40m Upgrading | Endtable upgrade for auxiliary green laser : progress | I started to put together optics at the
endtable. I am attaching the layout with
the green blocks showing the optics that |
|
|
8543
|
Tue May 7 19:06:45 2013 |
Manasa | Update | 40m Upgrading | Endtable upgrade for auxiliary green laser : progress | I have updated the waists (W) and beam
diameters (D) at 1064nm optics on the
endtable. |
|
|
8556
|
Thu May 9 01:36:32 2013 |
Manasa | Update | 40m Upgrading | Endtable upgrade for auxiliary green laser : progress | Progress with end table:
Parts in green show assembled optics
that will not require any changes. Parts |
|
|
8560
|
Thu May 9 22:29:23 2013 |
Manasa | Update | 40m Upgrading | Endtable upgrade for auxiliary green laser : progress | [Annalisa, Manasa]
More optics have been put on the
table. Direction of the rejected beam from |
|
|
8561
|
Fri May 10 20:05:21 2013 |
Annalisa | Update | 40m Upgrading | Endtable upgrade for auxiliary green laser : progress | I rotated some mounts along
the green beam path, and I started aligning
the beam again. |
|
|
8565
|
Mon May 13 21:35:55 2013 |
Annalisa | Update | 40m Upgrading | Endtable upgrade for auxiliary green laser : progress | Yend
table - Current status |
|
|
8568
|
Tue May 14 01:13:35 2013 |
Jenne | Update | 40m Upgrading | TRY realigned | Koji noticed that earlier this afternoon
the Yarm ASS was working, but then after
dinner it was no longer working. I |
|
|
8571
|
Tue May 14 14:24:56 2013 |
Steve | Update | 40m Upgrading | enclosure removal |
I'm planning to remove the
ETMY optical table enclosure and move it |
|
|
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 |
|
|
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 |
|
|
31
|
Tue Oct 30 16:55:40 2007 |
tobin | Routine | | Drag-wiping perfected | Steve, Tobin
Steve procured an assortment of syringes |
|
|
108
|
Thu Nov 15 18:36:48 2007 |
John | Summary | | PSL table work | I've rotated the lambda/2 plate to 340deg
(from 6 deg) and blocked one arm of the Mach-Zender.
Undo both if you need to. |
|
|
130
|
Wed Nov 28 12:43:53 2007 |
Andrey | Bureaucracy | | Here was the PDF-file of my presentation |
I was making a report with powerpoint presentation
during that Wednesday's 40-m meeting.
|
|
|
215
|
Thu Dec 27 12:12:02 2007 |
pkp | Update | | Update on GigE Camera | So I finally got the linux software to compile
on mafalda. I got the software to dump all
the information regarding the camera onto |
|
|
254
|
Wed Jan 23 09:27:55 2008 |
steve | Update | | etmy sus damping restored | Seismis event trips etmy |
|
|
548
|
Fri Jun 20 02:20:33 2008 |
Yoichi | Update | | PMC transmittance degradation | The PMC transmitted light power has been degrading
constantly for last two weeks (see the attachment
1).
|
|
|
563
|
Wed Jun 25 09:46:45 2008 |
Sharon | Update | | Adaptive Filters | I have been learning about different methods
for applying adaptive filters to improve
the Mode Cleaner lock in specific, and other |
|
|
577
|
Thu Jun 26 18:29:44 2008 |
Jenne | Update | | MC Back online | Jenne, Rob, Yoichi
I was playing with the Mode Cleaner earlier |
|
|
680
|
Wed Jul 16 11:26:47 2008 |
Max Jones | Update | | This Week | Baffles.
I got a battery for the magnetometer today |
|
|
704
|
Mon Jul 21 09:52:05 2008 |
Sharon | Update | | Adaptive code changes | Thanks to Alex, we now save the coefficients
of the adaptive filter every cycle. When
we choose ENABLE: OFF on the MEDM screen, |
|
|
709
|
Mon Jul 21 19:48:57 2008 |
Sharon | Update | | how tp restart C1ASS | How to restart C1ASS:
1. reboot
|
|
|
720
|
Wed Jul 23 10:47:05 2008 |
Sharon | Update | | Weekly update | This week I spent some time with Alex who
updated the adaptive code to save the filter's
coeffs all the time, stop when I open the |
|
|
723
|
Wed Jul 23 13:52:26 2008 |
Sharon | Update | | MEDM changes | There is a new MEDM screen now when you go
from c1ass>top>pem.
Instead of having 12 "mini filters" screens |
|
|
739
|
Fri Jul 25 13:30:53 2008 |
Sharon | Update | | Changes in ASS computer | I editted the simulink diagram of the ASS
computer so it now has 2 more channels reading
2 sets of the FIR coefficients to match Alex's |
|
|
740
|
Fri Jul 25 17:32:46 2008 |
Sharon | Update | | ASS computer | So, it seems a bit too complicated getting
the coefficients the way I wanted it to happen
(simulink-.ini...).
|
|
|
747
|
Mon Jul 28 12:02:32 2008 |
Sharon | Update | | accelerometers settings | Jenne, Sharon
|
|
|
750
|
Mon Jul 28 17:58:05 2008 |
Sharon | Update | | TOP screen changes | I wanted to test the adaptive code with a
downsampling rate of 32 instead of 16. To
do this I entered a 32 Hz ((2048/32)/2 - |
|
|
760
|
Tue Jul 29 21:04:55 2008 |
Sharon | Update | | OSEM's Power Spectrum | From 16:30 this afternoon |
8x |
|
765
|
Wed Jul 30 12:36:19 2008 |
Sharon | Update | | Weekly update | This week included many computer's issues.
I tested Alex's new C code (the one that
saves the FIR coefficients and restores them |
|
|
814
|
Fri Aug 8 11:04:34 2008 |
Sharon | Update | | MCL Wiener filter | I took some old data from Rana and converted
the units of the Weiner filter to m/m so
to make the effect of the seismometer and |
|
|
841
|
Fri Aug 15 16:45:43 2008 |
Sharon | Update | | Converting from FIR to IIR | I have been looking into different techniques
to convert from FIR to IIR. This is so we
can see how effective the adaptive FIR filter |
|
|
850
|
Tue Aug 19 10:36:34 2008 |
Sharon | Update | | Calibrating accelerometers | I took apart the accelerometers near MC1 and
MC2.
The 2 sets of 3 accelerometers are now covered |
|
|
854
|
Tue Aug 19 17:00:19 2008 |
Sharon | Update | | Wiener TF calibration - update | [I]This is an update for post 814[/I]
I added the calibration gains I got for the |
|
|
855
|
Tue Aug 19 17:15:34 2008 |
Sharon | Update | | MEDM | I plugged in the gains I got for the accelerometers
in the accelerometers' filters in the PEM
screen of the adaptive filter |
|
|
863
|
Wed Aug 20 17:02:01 2008 |
Sharon | Update | | More FIR to IIR | I tested another method for converting from
FIR to IIR other than the 2 mentioned in
post 841.
|
|
|
870
|
Fri Aug 22 13:58:39 2008 |
Sharon | Summary | | Trend of the Wiener TF | In order to understand if we really need an
adaptive filter, I used old data of MC_L
and the accelerometers and seismometer to |
|
|
916
|
Wed Sep 3 18:45:01 2008 |
Alberto | Configuration | | PD3 gain | Alberto, Yoichi,
We found that the PD3 servo was unstable |
|
|
1442
|
Mon Mar 30 12:29:17 2009 |
Yoichi | Configuration | | MC1 glitches not seen during the weekend | The attached is the MC trend for the past
12 hours.
There is no MC1 glitches in the OSEM signals. |
|
|
1556
|
Thu May 7 17:59:23 2009 |
Alberto | Configuration | | MC WFS | This afternoon the MC could not get locked.
I
first checked the Osems values at the MC
mirrors and compared them to the trend of |
|
|
1739
|
Mon Jul 13 16:59:10 2009 |
Zach | Update | | GigE Phase Camera | Today, I moved the router from on top of
the PSL into the control room in order to
perform dark field tests on the GC650 (which |
|
|
1797
|
Mon Jul 27 14:43:34 2009 |
Chris | Update | | Photodetectors | I found two ThorLabs PDA55 Si photodetectors
that says detect visible light from DC to
10MHz that I'm going to use from now on. |
|
|
1907
|
Fri Aug 14 18:33:02 2009 |
Clara | Update | | Record of Accelerometer and Seismometer Movements | Rather than make a new elog post every
time I move something, I'm going to just
keep updating this Google spreadsheet, which |
|
|
2984
|
Tue May 25 17:04:37 2010 |
Kevin | Update | | Beam Profile After Mode Cleaner | I fit the data from the beam profile that
Jenne measured on 5/21/2010. The distances
are measured from halfway between MC1 and |
|
|
3027
|
Tue Jun 1 18:39:59 2010 |
Nancy | Update | | Lead spheres for the seismographs |
the lead spheres that were placed
below the granite slab have been flattened |
|