| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
6466
|
Thu Mar 29 18:42:11 2012 |
keiko | Update | LSC | POP22/POP110 amplifires | Adding two amplifiers on POP22/110,
I checked the signals going to the dmod board
of 22 and 110. |
|
|
6475
|
Mon Apr 2 18:24:34 2012 |
keiko | Update | LSC | RAM simulation for Full ifo | I extended my RAM script from DRMI
(3DoF) to the full IFO (5DoF).
Again, it calculates the operation |
|
|
6480
|
Tue Apr 3 14:11:33 2012 |
keiko | Update | LSC | RAM simulation for Full ifo |
|
|
|
6481
|
Tue Apr 3 14:17:18 2012 |
keiko | Update | LSC | RAM simulation for Full ifo | I add a flow-chart drawing what the scripts
do and how the scripts calculate the LSC
matrix. |
|
|
6482
|
Tue Apr 3 15:50:58 2012 |
keiko | Update | LSC | RAM simulation for Full ifo | Oops,
Yesterday's results for DARM was wrong! |
|
|
6483
|
Tue Apr 3 22:50:37 2012 |
keiko | Update | LSC | RAM simulation for Full ifo | Koji and
Jamie suggested me to include the coupling
between DoFs when I calculate the last matrix. |
|
|
6486
|
Wed Apr 4 23:57:35 2012 |
keiko | Update | LSC | RAM simulation for Full ifo | I'm still wondering whether iteration
version or simple version is closer approximation
to the real situation. Sorry for few explanations |
|
|
6504
|
Sat Apr 7 00:31:12 2012 |
keiko | Update | LSC | RAM simulation for Full ifo | I didn't
understand how CARM can be decreased 2 orderes
of magnitude and PRCL can be INCREASED by |
|
|
2064
|
Wed Oct 7 11:18:40 2009 |
kiwamu | Summary | Electronics | racks of electronics |
I took the pictures of all racks
of electronics yesterday, and then uploaded |
|
|
2111
|
Sun Oct 18 22:05:40 2009 |
kiwamu | Update | LSC | LSC timing issue | Today
I made a measurement to research the LSC
timitng issue as mentioned on |
|
|
2114
|
Mon Oct 19 10:00:52 2009 |
kiwamu | Update | LSC | RE: LSC timing issue | Of course I know there is a downconversion
in OMC signal from 32k to 16k.
But I was just wondering if the delay |
|
|
2122
|
Mon Oct 19 23:14:32 2009 |
kiwamu | Update | LSC | LSC timing issue | I measured
the noise spectrum of LSC_DARM_IN1 and OMC-LSC_DRIVE_EXC
by using DTT, |
|
|
2145
|
Mon Oct 26 18:49:18 2009 |
kiwamu | Update | LSC | OMC-LSC timing issue | According to my measurements I
conclude that LSC-signal is retarded from |
|
|
2146
|
Mon Oct 26 19:12:50 2009 |
kiwamu | Update | LSC | diagnostic script for LSC timing | The diagnostic script I've written is available
in the 'caltech/users/kiwamu/work/20091026_OMC-LSC-diag/src'.
To run the script, you can just execute |
|
|
2153
|
Tue Oct 27 19:37:03 2009 |
kiwamu | Update | LSC | cron job to diagnose LSC-timing | I set a cron job on allegra.martian to
run the
diagnostic script every weekend. |
|
|
2167
|
Mon Nov 2 10:56:09 2009 |
kiwamu | Update | LSC | cron job works succesfully & no timing jitter | As
I wrote on Oct.27th, the cron job works
every Sunday. |
|
|
2169
|
Mon Nov 2 13:34:36 2009 |
kiwamu | Configuration | PSL | removed multiply resonant EOM | I removed the multiply resonant EOM that
has been set by a SURF student from PSL table.
I will use it for checking the resonant |
|
|
2179
|
Thu Nov 5 12:34:26 2009 |
kiwamu | Update | Computers | elog rebooted | I found elog got crashed. I rebooted the
elog daemon just 10minutes before. |
|
|
2244
|
Wed Nov 11 20:57:06 2009 |
kiwamu | Update | Electronics | Multi-resonant EOM --- LC tank circuit --- | I have been working about multi-resonant
EOM since last week.
In order to characterize the behavior |
|
|
2262
|
Fri Nov 13 03:38:47 2009 |
kiwamu | Update | Electronics | multi-resonant EOM --- impedance of LC tank circuit ---- | I have measured the impedance of the LC
tank circuit which I referred on my
last entry. |
|
|
2263
|
Fri Nov 13 05:03:09 2009 |
kiwamu | Update | Electronics | multi-resonant EOM --- input impedance of LC tank ---- | I measured the input impedance of the
LC tank circuit with the transformer. The |
|
|
2277
|
Mon Nov 16 17:35:59 2009 |
kiwamu | Update | LSC | OMC-LSC timing get synchronized ! | An interesting thing was happened in the
OMC-LSC timing clock.
Right now the |
|
|
2292
|
Wed Nov 18 14:55:59 2009 |
kiwamu | Update | Electronics | multi-resonant EOM --- circuit design ---- | The circuit design of multi-resonant EOM
have proceeded.
By using numerical |
|
|
2294
|
Wed Nov 18 16:58:36 2009 |
kiwamu | Update | Electronics | multi-resonant EOM --- EOM characterization --- | In designing the whole circuit it is better
to know the characteristic of the EOM.
I made impedance measurement with |
|
|
2340
|
Wed Nov 25 20:44:48 2009 |
kiwamu | Update | Electronics | Multi-resonant EOM --- Q-factor ---- | Now I am studying about the behavior of
the Q-factor in the resonant circuit because
the Q-factor of the circuit directly determine |
|
|
2363
|
Tue Dec 8 03:53:49 2009 |
kiwamu | Update | SUS | Free swinging spectra of ETMX | In this night, I checked the free swinging
spectra of ETMX to make sure nothing wrong
with ETMX by the wiping. |
|
|
2368
|
Tue Dec 8 23:13:32 2009 |
kiwamu | Update | SUS | free swinging spectra of ETMY and ITMX | The free swinging spectra of ETMY and ITMX
were taken after today's wiping, in order
to check the test masses. |
|
|
2372
|
Wed Dec 9 17:51:03 2009 |
kiwamu | Update | SUS | watchdogs | Please do not touch
the watchdogs for all SUSs except for MCs, |
|
|
2374
|
Wed Dec 9 21:09:28 2009 |
kiwamu | Update | SUS | Re: free swinging spectra of ETMY and ITMX | Okay, now the data are attached. At that
time I just wanted to say like the follower.
- - - |
|
|
2391
|
Thu Dec 10 17:13:36 2009 |
kiwamu | Update | SUS | Free swiging spectra under the atmospheric pressure | The free swinging spectra of ITMs, ETMs,
BS, PRM and SRM were measured last night
in order to make sure that nothing wrong |
|
|
2401
|
Fri Dec 11 17:36:37 2009 |
kiwamu | Update | General | IFO restoring plan | Alberto,
Jenne, Kiwamu
|
|
|
2405
|
Sun Dec 13 17:43:10 2009 |
kiwamu | Update | SUS | free swinging spectra (vacuum) | The free swinging spectra of ITMs, ETMs,
BS, PRM and SRM were measured under the vacuum-condition.
The attachment are measured spectra. |
|
|
2446
|
Tue Dec 22 15:49:31 2009 |
kiwamu | Update | General | e-log restarted | I found the e-log has been down around
3:40pm, then I restarted the e-log. Now it's
working. |
|
|
2450
|
Thu Dec 24 01:25:29 2009 |
kiwamu | Update | Electronics | impedance analyzing | The
validation for high impedance measurement
has been well done. |
|
|
2453
|
Sun Dec 27 20:05:28 2009 |
kiwamu | Update | Computers | can not communicate with front-ends | In this evening I found that fb40m has
been down, then I restarted fm40m successfully.
|
|
|
2470
|
Wed Dec 30 22:17:07 2009 |
kiwamu | Update | General | Camera input and monitor output | The input channels of the cameras and
the output channels for the monitors are
summarized on the |
|
|
2523
|
Mon Jan 18 23:44:19 2010 |
kiwamu | Update | Electronics | triple resonant circuit for EOM | The first
design of the triple resonant EOM circuit |
|
|
2525
|
Tue Jan 19 02:39:57 2010 |
kiwamu | Update | Electronics | design complete --- triple resonant circuit for EOM --- | The design
of the triple resonant circuit has been fixed. |
|
|
2529
|
Tue Jan 19 03:27:47 2010 |
kiwamu | Update | Electronics | Re: triple resonant circuit for EOM | 1. You are right, the gain for the
single resonant circuit was about 9.3 in
my measurement. |
|
|
2533
|
Tue Jan 19 23:26:07 2010 |
kiwamu | Update | Electronics | Re:Re: triple resonant circuit for EOM |
|
|
|
2586
|
Wed Feb 10 17:28:02 2010 |
kiwamu | Update | Electronics | triple resonant EOM ---- preliminary result | I have made a
prototype circuit of the triple resonant |
|
|
2590
|
Thu Feb 11 16:52:53 2010 |
kiwamu | Update | Electronics | triple resonant EOM ---- preliminary result | The commercial resonant EOM of New Focus
has the modulation efficiency of |
|
|
2596
|
Fri Feb 12 13:15:41 2010 |
kiwamu | Update | Electronics | triple resonant EOM --- liniaryity test |
I have
measured the linearity of our triple resonant |
|
|
2601
|
Fri Feb 12 18:58:46 2010 |
kiwamu | Update | Green Locking | take some optics away from the ETM end table | In
the last two days Steve and I took some optics
away from the both ETM end table. |
|
|
2606
|
Tue Feb 16 11:12:51 2010 |
kiwamu | Update | Green Locking | Re:take some optics away from the ETM end table |
|
|
|
2609
|
Tue Feb 16 16:24:30 2010 |
kiwamu | Update | Green Locking | Re:Re:take some optics away from the ETM end table | I put the TRY_PD back to the end table
and aligned it. Now it seems to be working
well. |
|
|
2618
|
Fri Feb 19 15:29:14 2010 |
kiwamu | Update | COC | Gluing dumbbells and magnets | Jenne and kiwamu
We have |
|
|
2619
|
Fri Feb 19 16:40:43 2010 |
kiwamu | Update | Green Locking | rearrange the optics on the end table | Koji and kiwamu
The existing |
|
|
2635
|
Tue Feb 23 19:00:45 2010 |
kiwamu | Configuration | VAC | vent finished | The vent has been
finished. |
|
|
2650
|
Tue Mar 2 12:20:54 2010 |
kiwamu | Update | PSL | stray beam | In order to block stray beams, I have
put some beam dumps and razor blades on the
PSL table. |
|