| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
738
|
Fri Jul 25 10:48:13 2008 |
Koji | Update | General | Abs. Len. Meas. ~ Realignment / beating / PLL trial | Alberto and Koji
o We worked for the abs length measurement |
|
|
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...).
|
|
|
741
|
Fri Jul 25 19:57:18 2008 |
Jenne | Update | PSL | Ref Cav & PMC | "PMC is in, but is still being worked on.
Leave it alone." ---Rana
|
|
|
742
|
Sat Jul 26 15:09:57 2008 |
Aidan | Update | Computers | Reboot of op440m |
I was reviewing the PSL Overview screen this
afternoon and op440m completely froze when |
|
|
745
|
Sun Jul 27 23:06:17 2008 |
rana | Update | PSL | PMC, MZ, MC-MMT, etc. | With the new PMC now in I aligned the MZ to
the new beam (there is sadly no steering
between the PMC and the MZ).
|
|
|
746
|
Mon Jul 28 11:20:13 2008 |
Jenne | Update | PSL | Work on the FSS and Reference Cavity | [Yoichi, Jenne, Koji]
The Reference Cavity's saga continues....
|
|
|
747
|
Mon Jul 28 12:02:32 2008 |
Sharon | Update | | accelerometers settings | Jenne, Sharon
|
|
|
748
|
Mon Jul 28 15:54:04 2008 |
Koji | Update | General | Abs. Len. Meas. ~ More on the beat / the PLL setup | Alberto and Koji,
Last Friday evening, Koji found that the |
|
|
749
|
Mon Jul 28 17:44:07 2008 |
rana | Update | PSL | PMC PZT v. temperature | This plot shows that the PMC [COLOR=darkblue]PZT
has ~20 Vpp fluctuations on a 24 hour timescale[/COLOR]
which is correlated to the 24 hour temperature |
|
|
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 - |
|
|
754
|
Tue Jul 29 11:50:01 2008 |
Jenne | Update | Environment | 5.6 Earthquake | Earthquake Details
Magnitude 5.6
Date-Time
|
|
|
755
|
Tue Jul 29 13:54:08 2008 |
rana | Update | SUS | ETMY and PRM have EQ related problems | The attached trend shows that ETMY and PRM
both had large steps in their sensors
around the time of the EQ and didn't return |
|
|
756
|
Tue Jul 29 14:38:02 2008 |
rob | Update | SUS | ETMY and PRM have EQ related problems | [quote]The attached trend shows that ETMY
and PRM both had large steps in their sensors
around the time of the EQ and didn't return |
|
|
757
|
Tue Jul 29 18:15:36 2008 |
rob | Update | IOO | MC locked |
I used the SUS DRIFT MON screen to return
the MC suspensions to near their pre-quake |
|
|
758
|
Tue Jul 29 19:41:38 2008 |
Yoichi | Update | PSL | FSS loop transfer functions | Last night I measured a bunch of transfer
functions on the FSS loop.
All the loop gains were measured with the |
7x |
|
759
|
Tue Jul 29 19:53:19 2008 |
Koji | Update | SUS | PRM photos from the south window | Steve and Koji
We took some photos of PRM from the south |
|
|
760
|
Tue Jul 29 21:04:55 2008 |
Sharon | Update | | OSEM's Power Spectrum | From 16:30 this afternoon |
8x |
|
761
|
Tue Jul 29 23:04:34 2008 |
Yoichi | Update | PSL | FSS loop transfer functions | [quote]
The measurement of the PZT open loop TF is
very suspicious. According to this, the PC |
|
|
762
|
Wed Jul 30 00:42:04 2008 |
rana | Update | SUS | Trends and file formats | I propose that we do not use .eps format but
.pdf instead. For images like the plots Sharon
has below we should use only .png and for |
|
|
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 |
|
|
766
|
Wed Jul 30 13:08:44 2008 |
Max Jones | Update | Computer Scripts / Programs | Weekly Summary | This week I've been working on the noise budget
script. The goal is to add Siesmic, Darm,
Mich, Prc and magnetometer noise. I believe |
|
|
771
|
Wed Jul 30 15:28:08 2008 |
rob | Update | LSC | Y arm locked |
By using a combination of the SUS-DRIFT mon
screen and the optical levers (which turned |
|
|
772
|
Wed Jul 30 16:35:56 2008 |
Eric | Update | PSL | PMC Scan Graphs | Graphs of the PMC scan data that I got earlier
today.
|
|
|
774
|
Thu Jul 31 10:24:32 2008 |
Koji | Update | General | IFO status | Last night I used the Y-arm for the abs length
measurement. The Yarm was aligned by the
script.
|
|
|
775
|
Thu Jul 31 10:27:17 2008 |
rana | Update | PSL | PMC Scan Graphs | [quote]Graphs of the PMC scan data that I
got earlier today.
[/quote]
|
|
|
776
|
Thu Jul 31 11:19:30 2008 |
Koji | Update | General | Abs. Len. Meas. ~ Resonance search trial | Last night, I tried to find the resonance
of Yarm by sweeping the frequency of the
injection beam.
|
|
|
782
|
Sat Aug 2 12:53:43 2008 |
Koji | Update | General | Abs. Len. Meas. ~ New PLL at the PSL table | [B]Report of the work last night:[/B]
The new heterodyne interferometer on the
PSL table was built.
|
|
|
785
|
Sat Aug 2 18:37:41 2008 |
rana | Update | SUS | OSEM Spectra | [COLOR=darkblue]
The attached PDF file is from the .xml files
that I found from 7/30. Looks like someone
|
|
|
787
|
Mon Aug 4 00:37:58 2008 |
Koji | Update | General | Abs. Len. Meas. ~ RF PD at the Y end / Manual frequency scan | [B]Work log on August 2nd[/B]
o Just remind you:
|
|
|
789
|
Mon Aug 4 05:23:57 2008 |
Koji | Update | General | Abs. Len. Meas. ~ Measurement for Y-arm completed | Finally, I have completed the abs length and
g-factor measurements for Y-arm.
[COLOR=green][B]>>>GO FOR THE VENT<<<[/B][/COLOR]
|
|
|
793
|
Mon Aug 4 21:48:24 2008 |
Koji | Update | General | Abs. Len. Meas. ~ Scan for TEM00/01/10 | [B]Work log on August 3rd - Part2[/B]
o I tried to measure the frequency of the |
|
|
794
|
Mon Aug 4 22:31:10 2008 |
Koji | Update | General | Abs. Len. Meas. ~ Simple Test for TEM01/10 split | [B]Work log on August 3rd - Part3[/B]
[B]Question:[/B]
|
|
|
795
|
Tue Aug 5 00:05:57 2008 |
Koji | Update | General | Abs. Len. Meas. ~ IFR2023A calibration | [B]Work log on August 4th[/B]
o IFR2023A (Marconi) was calibrated by the |
|
|
797
|
Tue Aug 5 10:23:00 2008 |
steve | Update | SUS | earthquake and venting effects | atm 1, EQ
atm 2, vent 7 days later: venting kicks optic
into place to be free,
|
|
|
799
|
Tue Aug 5 12:52:28 2008 |
Yoichi | Update | SUS | ITMX, SRM OSEM spectra | Free swinging spectra of ITMX and SRM.
ITMX seems to be ok after yesterday's work,
though the OSEM DC values are still a bit |
|
|
801
|
Wed Aug 6 11:10:34 2008 |
Koji | Update | General | Abs. Len. Meas. ~ analysis of the TEM00 scan | [B]Analysis of the data on August 3th ~ Part
1[/B]
|
|
|
802
|
Wed Aug 6 11:43:52 2008 |
Koji | Update | General | Abs. Len. Meas. ~ analysis of the TEM01 scan | [B]Analysis of the data on August 3th ~ Part
2[/B]
|
|
|
803
|
Wed Aug 6 13:15:57 2008 |
Yoichi | Update | SUS | SRM ETMX freeswing spectra | After yesterday's work on the SRM, I took
free swinging spectra of SRM.
The eigen modes look ok. But there are many |
|
|
805
|
Wed Aug 6 19:01:15 2008 |
Alberto | Update | General | ITMX and SRM OSEM post-earthquake diagnostic | Koji, Yoichi, Alberto
Today we reset the OSEMs on ITMX and SRM |
|
|
806
|
Wed Aug 6 22:19:07 2008 |
Yoichi | Update | SUS | BS alignment | Koji, Yoichi
We realized that we did not pay attention |
|
|
807
|
Thu Aug 7 10:07:13 2008 |
Yoichi | Update | SUS | Free swinging OSEM spectra | Looks like there are more extra peaks in the
SRM than other optics.
Maybe because it is closer to the door ? |
|
|
808
|
Thu Aug 7 10:27:59 2008 |
rana | Update | SUS | Free swinging OSEM spectra | Sometimes we see extra peaks in the OSEM spectra
coming from a beat between the regular eigenmodes.
This probably comes from the OSEM shadow |
|
|
810
|
Thu Aug 7 12:20:52 2008 |
Yoichi | Update | SUS | PRM stand-offs and wire | We removed the side OSEM of the PRM so that
we can see the stand-off on the farther side.
|
|
|
811
|
Thu Aug 7 17:32:23 2008 |
Jenne | Update | SUS | Afternoon PRM activities | Rana, Jenne, Yoichi, Dmass
After Yoichi confirmed this morning that |
|
|
812
|
Fri Aug 8 09:54:10 2008 |
rana | Update | Cameras | New code + gstreamer allows for easy saving and compression of images | [quote]Modified the CamSnap code to output
the image data stream to standard out. This
can then be piped into a gstreamer plugin |
|
|
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 |
|
|
816
|
Fri Aug 8 13:29:54 2008 |
Yoichi | Update | SUS | No groove in the stand-off ... wait, it is not even a stand-off ! | Yoichi, Steve, Seiji
We took magnified pictures of the stand-offs |
|
|
817
|
Fri Aug 8 15:10:35 2008 |
Yoichi | Update | SUS | No groove in the stand-off ... wait, it is not even a stand-off ! | I tried to find the missing stand-off and
the guide rod in the BS chamber, but I couldn't. |
|
|
818
|
Fri Aug 8 17:54:52 2008 |
Jenne | Update | SUS | Standoffs and Guide Rods | After closer inspection of other small optics,
it is clear that the guide rods should be
[SIZE=2]above[/SIZE] the standoffs on our |
|