| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
4635
|
Thu May 5 13:12:06 2011 |
Jenne | Update | PSL | Temperature drift, trying to shield PMC with foil | eeek. I've been running around
all day, so this is an incomplete elog.
I'll fill in more stuff in the next hour |
|
|
4634
|
Thu May 5 12:01:53 2011 |
Larisa Thorne | Configuration | Electronics | Jenne-Seismometer LPF project | Having finished the bulk of the work
for the LPF itself ( see here ),
I have begun trying to design the seismometer |
|
|
4633
|
Thu May 5 10:19:22 2011 |
steve | Update | PSL | PSL-FSS_RMTEMP is back | Valera and I installed the the temp sensor
and the interface box that Rana fixed. This
may help with diagnosing the PSL drift. |
|
|
4632
|
Thu May 5 04:38:20 2011 |
Koji | Summary | LSC | Comparison between S3399 and FFD-100 | Comparison between Hamamatsu S3399 and
Perkin Elmer FFD-100
These are the candidates for the |
|
|
4631
|
Thu May 5 00:08:59 2011 |
Jenne | Update | LSC | (Almost) New Screens for RFPDs | I modified C1LSC.mdl to use the CDSphase
blocks, which automatically calculate the
R and D phase rotation for us. Now |
|
|
4630
|
Wed May 4 17:32:06 2011 |
Larisa Thorne | Configuration | Electronics | Jenne-Seismometer LPF project | Building on what was posted previously
|
|
|
4629
|
Wed May 4 15:56:09 2011 |
valera | Summary | General | PSL and MC trends | The attached plot shows 2 day trends of
the PMC and MC reflected and transmitted
power, the PSL POS/ANG QPD signals, and the |
|
|
4628
|
Wed May 4 15:39:32 2011 |
Suresh | Update | RF System | RF Source Harmonics |
I have measured the RF source harmonics in |
|
|
4627
|
Wed May 4 15:22:39 2011 |
kiwamu | Update | | Re: Intermittent MC3 UL PD signal | I
went push all the possible connectors for
the MC3 shadow sensors including the SCSIs, |
|
|
4626
|
Wed May 4 13:57:04 2011 |
kiwamu | Update | SUS | mechanical resonances updated | [Leo w/ a little help from Kiwamu]
Leo
summarized the mechanical resonances of all |
|
|
4625
|
Wed May 4 13:51:51 2011 |
valera | Configuration | | Intermittent MC3 UL PD signal | The attached plot shows the 30 day trend
of the MC3 UL PD signal. The signal dropped
to zero at some point but now it is close |
|
|
4623
|
Wed May 4 13:45:56 2011 |
kiwamu | Update | LSC | locking last night | Last night I was trying to calibrate the
MICH error signal and the actuators on BS
and ITMs. |
|
|
4622
|
Wed May 4 12:07:48 2011 |
Suresh | Update | RF System | REFL55 installed on the AP table | REFL55
has been installed on the AP table.
REFL11 has been moved to make space for a |
|
|
4621
|
Wed May 4 11:48:01 2011 |
Suresh | Update | IOO | MC Locking not working | [Valera, Suresh]
The first time I noticed that the
MC was not locking was after I had finished |
|
|
4620
|
Tue May 3 18:46:06 2011 |
rana | Update | IOO | MC Locking not working | I found that the MC autolocker was OFF.
Kiwamu says he turned it off because its
slow. Suresh says that he has some feelings |
|
|
4619
|
Tue May 3 18:25:38 2011 |
kiwamu | Summary | LSC | PRMI locking : plan | [Rana/Jamie/Kiwamu]
Since we've got the PRMI locked
we now should be able to do more qualitative |
|
|
4618
|
Tue May 3 17:19:25 2011 |
kiwamu | Update | Electronics | Heliax connectors on 1Y2 rack : tightened | My observation wasn't accurate enough.
The
looseness came from the fact that the N-SMA |
|
|
4617
|
Tue May 3 16:47:55 2011 |
kiwamu | Update | LSC | PRMI locking : details | Here
are some details about the PRMI locking done
last night. |
|
|
4616
|
Tue May 3 16:20:13 2011 |
steve | Update | SUS | PRM & BS oplevs are ready |
|
|
|
4615
|
Tue May 3 15:59:22 2011 |
steve | Frogs | Photos | X-mas comes early | The little red all terrain cargo wagon
40" x 18" has just arrived
on pneumatic wheels. |
|
|
4614
|
Tue May 3 15:48:26 2011 |
Larisa Thorne | Update | Electronics | laser temperature control LPF, final version! | This is a continuation of this
The low pass filter is finally
acceptable, and its Bode graph is below (on |
|
|
4613
|
Tue May 3 15:04:20 2011 |
kiwamu | Update | SUS | Re: DRMI prep : suspension diagnostic | Jenne went through all the suspension racks
and pushed all the connectors.
After pushing them, we had a quick |
|
|
4612
|
Tue May 3 14:35:44 2011 |
Larisa Thorne | Configuration | Electronics | Jenne-Seismometer LPF project | I was charge with making a Non-Inverting
Op Amp Low Pass Feedback circuit for Jenne,
which may somehow be integrated into a seismometer |
|
|
4611
|
Tue May 3 13:22:13 2011 |
Leo | Update | SUS | Re: DRMI prep : suspension diagnostic | Here are the free-swinging spectra for
the BS, ETMX, ETMY, ITMX, ITMY, MC1, MC2,
MC3, and PRM chambers. Kiwamu left |
10x |
|
4610
|
Tue May 3 11:49:03 2011 |
Koji | Update | LSC | daytime tasks | Done. C1:PSL-PMC_PMCTRANSPD was improved
from ~0.75 to 0.87.
|
|
|
4609
|
Tue May 3 10:59:31 2011 |
josephb | Update | CDS | 1Y2 binary output adapter board now powered | I temporarily turned off the power to the
1Y2 rack this morning while wiring in the
binary output adapter board power (+/- 15V) |
|
|
4608
|
Tue May 3 10:41:35 2011 |
josephb | Update | CDS | Morning maintenance | 1) Filled in the C1SUS_BS_OLMATRIX properly
so as to make the BS oplev work for Steve.
2) Turned on the ITMX damping. |
|
|
4607
|
Tue May 3 10:21:25 2011 |
Koji | Update | LSC | daytime tasks | I think the installation of the PD DC
signals are quite important. What to do
1) Connect the DC signals to the right |
|
|
4606
|
Tue May 3 05:32:04 2011 |
kiwamu | Update | LSC | daytime tasks | Daytime tasks :
- PRM & BS oplev (Steve) |
|
|
4605
|
Tue May 3 04:09:53 2011 |
Koji | Update | LSC | REFL55 PD update | [Rana, Koji]
REFL55 was modified. The noise level
confirmed. The PD is now ready to be installed. |
|
|
4604
|
Tue May 3 03:53:20 2011 |
kiwamu | Update | LSC | PRMI locking : done | The PRMI has been successfully
locked |
|
|
4603
|
Tue May 3 00:44:02 2011 |
Koji | Configuration | Computers | Martian WIreless Bridge | The Martian wireless bridge has the ethernet
cable inserted in the wrong connector.
It should be inserted to one of the |
|
|
4602
|
Mon May 2 23:29:57 2011 |
Suresh | Update | Electronics | too loose Heliax connectors on 1Y2 rack | The countersink
gives rise to another problem when we mount
the N-type-to-SMA bulkhead adaptor. |
|
|
4601
|
Mon May 2 21:14:55 2011 |
kiwamu | Update | Electronics | too loose Heliax connectors on 1Y2 rack | I found that
all the Heliax cables landing on the bottom |
|
|
4600
|
Mon May 2 18:16:24 2011 |
kiwamu | Update | LSC | PRMI locking : status update | (done)
- AS55 RFPD
With a help from Jamie the |
|
|
4599
|
Mon May 2 17:10:55 2011 |
steve | Update | SUS | PRM oplev | The returning spot diameter on the qpd
~10 mm. In order to reduce the spot size
I moved the f 1145 mm lens toward the PRM |
|
|
4598
|
Mon May 2 15:53:27 2011 |
kiwamu | Update | LSC | PRMI locking prep : demodulation boards | I swapped the name of two demodulation
boards (AS55 and REFL55).
Now |
|
|
4597
|
Mon May 2 13:43:05 2011 |
steve | Frogs | Photos | birthday boys | .....Happy.... Birthday.... to.... Joseph...
and... Jamie...Happy....Birthday..... to....
You............sing with us........Happy |
|
|
4596
|
Mon May 2 13:30:13 2011 |
kiwamu | Update | SUS | PRMI locking prep: PRM oplev | I had a quick look at PRM optical lever.
The He-Ne beam is still successfully
coming out from the chamber and I could guide |
|
|
4595
|
Mon May 2 12:51:52 2011 |
kiwamu | Update | LSC | PRMI locking : plan | Today we will try to
lock the PRMI. |
|
|
4594
|
Mon May 2 11:14:27 2011 |
kiwamu | Update | SUS | script : opticshutdown | Just FYI.
There is a useful script for this
particular job : shutting down all the suspensions |
|
|
4593
|
Sat Apr 30 05:14:33 2011 |
Koji | Update | Green Locking | Electronics schematic for vertex beatbox | - AC coupling for the comparator
circuit of the green locking
In order to relieve the power consumption |
|
|
4592
|
Sat Apr 30 00:15:26 2011 |
kiwamu | Update | SUS | DRMI prep : suspension diagnostic | As a part of the DRMI preparation,
I leave all |
|
|
4591
|
Fri Apr 29 18:24:05 2011 |
Suresh | Update | RF System | RF system: 1X2 Rack cabling | [Joe, Jamie, Suresh]
We have installed the IDE to SCSI
adaptor module into the 1X2 rack and have |
|
|
4590
|
Fri Apr 29 14:36:36 2011 |
josephb, steve | Update | CDS | Removed hanging D-sub to SCSI in 1X5 |
|
|
|
4589
|
Fri Apr 29 13:58:36 2011 |
rana | Update | LSC | Y arm locked : details |
|
|
|
4588
|
Fri Apr 29 13:15:04 2011 |
kiwamu | Update | LSC | Y arm locked : details | As far as I know, this button works only
once after the launch of MEDM...
|
|
|
4587
|
Fri Apr 29 12:18:48 2011 |
kiwamu | Update | LSC | Y arm locked : details | First of all, the conclusions / results
from the exercise of the Y arm locking yesterday
are: |
|
|
4586
|
Fri Apr 29 05:48:52 2011 |
kiwamu | Update | LSC | Y arm locked | The
Y arm has been locked with the IR beam. The
purpose is to use the arm as an alignment |
|
|
4585
|
Fri Apr 29 03:39:49 2011 |
Koji | Summary | LSC | Cavity lengths | I tried the idea that the PRC can resonate
f1 and f2 at the same time if the arm gives
the reflection phase to f1 and f2 with the |
|