ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
7726
|
Mon Nov 19 20:03:53 2012 |
Manasa | Configuration | 40m Upgrading | Endtable upgrade for auxiliary green laser : ETMX layout on new table | I have attached the possible layout of
the optics on the new ETMX endtable. More
optics have been added when compared to the |
|
|
7725
|
Mon Nov 19 15:58:02 2012 |
Steve | Update | SAFETY | safety training | Charles Blakemore our new undergrad
help received 40m specific safety training
today. |
|
|
7724
|
Mon Nov 19 15:15:22 2012 |
Jenne | Update | SUS | All oplev gains turned on |
|
|
|
7723
|
Mon Nov 19 15:12:52 2012 |
Jenne | Update | Alignment | Yarm locked IR |
|
|
|
7722
|
Sat Nov 17 22:50:17 2012 |
Koji | Update | Alignment | red in arms | You have constraints for the IR beams (i.e.
one PZT and one BS for 8 dofs), so now you
need to align the arms for the input IR beams. |
|
|
7721
|
Sat Nov 17 18:02:14 2012 |
Den | Update | Alignment | red in arms |
|
|
|
7720
|
Sat Nov 17 03:30:13 2012 |
Den, Ayaka | Update | Alignment | red in arms | We aligned accurately 00 green in yarm,
changed voltage on PZT2 to see red flashing
at TRY at the normalized level 0.2-0.3. The |
|
|
7719
|
Fri Nov 16 09:57:57 2012 |
Jenne | Update | Green Locking | xarm locked |
|
|
|
7718
|
Fri Nov 16 03:12:39 2012 |
Ayaka, Den | Update | Green Locking | xarm locked | We aligned and locked xarm for green.
|
|
|
7717
|
Fri Nov 16 00:08:36 2012 |
Koji | Update | SUS | MC2 woes | People complained about the MC instability:
If
we aligned the MC, it locked nicely for a |
|
|
7716
|
Thu Nov 15 21:52:48 2012 |
Den, Ayaka | Update | Green Locking | yarm locked | We aligned and locked Y arm for green:
installed camera on PSL
to monitor green transmission
aligned |
|
|
7715
|
Thu Nov 15 03:09:08 2012 |
Jenne | Update | Alignment | No good progress, many options | I didn't make any concrete progress today.
AS and REFL cameras are in place, and Manasa
has put ND 0.5 filters on both. I used a |
|
|
7714
|
Thu Nov 15 02:18:24 2012 |
Den | Update | Modern Control | BS oplev | I've applied LQR feedback technique to
BS oplev in pitch. I think the most inconvenient
thing in using LQR controller is the amount |
|
|
7713
|
Wed Nov 14 21:59:09 2012 |
Den | Update | CDS | daq errors | I tried to add a test point to C1MCS model
and spent next two hours rebooting front-ends,
restarting models and realigning MC. |
|
|
7712
|
Wed Nov 14 13:58:18 2012 |
Jenne | Update | IOO | Turn off MCL path before doing MC spot measurement |
|
|
|
7711
|
Wed Nov 14 09:01:42 2012 |
Dumb statement catcher | Update | IOO | Turn off MCL path before doing MC spot measurement |
|
|
|
7710
|
Wed Nov 14 00:56:19 2012 |
Jenne | Update | IOO | WFS on, PZT2 ~set, AS camera back | WFS
are back on, and working nicely.
Den and I had seen a problem (which I had |
|
|
7709
|
Tue Nov 13 22:12:15 2012 |
Jenne | Update | IOO | Turn off MCL path before doing MC spot measurement | [Jenne, Den]
We have discovered that the MCL loop
squishes the length fluctuations that result |
|
|
7708
|
Tue Nov 13 21:05:35 2012 |
Den | Update | Adaptive Filtering | online and simulation | For a last few days I've been working on
oaf and simulink model to simulate it. First
I did online subtraction from MC when MC_L |
8x |
|
7707
|
Tue Nov 13 21:05:22 2012 |
Ayaka | Update | WienerFiltering | Acoustic noise cancellation with MC | In order to perform acoustic noise
cancellation with MCL signal, I am trying
to find sweet spots for microphones. |
9x |
|
7706
|
Tue Nov 13 20:13:07 2012 |
Koji | Configuration | 40m Upgrading | Endtable upgrade for auxiliary green laser : Circularize the 1W NPRO beam profile | These fs are too short.
|
|
|
7705
|
Tue Nov 13 16:18:51 2012 |
Manasa | Configuration | 40m Upgrading | Endtable upgrade for auxiliary green laser : Circularize the 1W NPRO beam profile | With reference to measurements made earlier: elog,
Beam parameters for Innolight 1W |
|
|
7704
|
Tue Nov 13 11:30:54 2012 |
Manasa | Configuration | 40m Upgrading | Endtable upgrade for auxiliary green laser | I'm set on the mission to get the new bigger endtables setup |
|
|
7703
|
Tue Nov 13 08:34:11 2012 |
Steve | Summary | VAC | pumpdown after 24days at atmosphere |
|
|
|
7702
|
Tue Nov 13 00:28:10 2012 |
Ayaka | Update | IOO | MC locked, spots centered | [Rana, Ayaka, Jenne]
We aligned the REFL beam to the center
of PD. |
|
|
7701
|
Tue Nov 13 00:27:50 2012 |
Jenne | Update | Electronics | Ethernet Illuminator Control |
|
|
|
7700
|
Tue Nov 13 00:19:51 2012 |
Jenne | Update | Cameras | ITMX is just fine |
|
|
|
7699
|
Tue Nov 13 00:15:08 2012 |
Jenne | Update | IOO | Input and Output PZTs turned on | I turned on the power supplies for the
output PZTs and pitch and yaw for PZT2.
This is back to the condition that we had |
|
|
7698
|
Mon Nov 12 23:38:50 2012 |
Charles | Update | Electronics | Ethernet Illuminator Control |
|
|
|
7697
|
Mon Nov 12 16:52:03 2012 |
Steve | Update | VAC | pumpdown has completed | The pressure is CC1 3e-4 Torr at
8 hours of pumping. Status: vacuum
normal |
|
|
7696
|
Mon Nov 12 09:21:10 2012 |
Steve | Update | VAC | pumpdown has started | I'm looking for IOO steering mirror power
supplies. I found two so far: one at 1Y3
as Kepco + 75V and one at OMC_North |
|
|
7695
|
Fri Nov 9 18:28:23 2012 |
Charles | Update | Summary Pages | Calendar | The calendar tab now displays calendars
with weeks that run from Sunday to Saturday
(as opposed to Monday to Sunday). However, |
|
|
7694
|
Fri Nov 9 17:15:05 2012 |
Manasa, Steve, Ayaka | Update | General | We're closed! Pumping down monday morning |
|
|
|
7693
|
Fri Nov 9 11:38:38 2012 |
jamie | Update | General | we're closing up | After a brief look this morning, I called
it and declared that we were ok to close
up. The access connector is almost |
|
|
7692
|
Fri Nov 9 08:11:57 2012 |
Steve | Update | Alignment | nothing moved - all good | Oplevs and IP ANG are still centered.
Why do the SRM and PRM move 5X
more ? I could not check the sensing |
|
|
7691
|
Thu Nov 8 22:04:43 2012 |
Charles | Update | Electronics | Ethernet Illuminator Control | Configured ethernet controlled power strips
to have static IP addresses: 192.168.113.110,
192.168.113.111 and 192.168.113.112. |
|
|
7690
|
Thu Nov 8 20:54:08 2012 |
Manasa, Ayaka | Update | Alignment | Reconfirming on IPPOS, IPANG and oplevs centering |
|
|
|
7689
|
Thu Nov 8 20:11:54 2012 |
Jenne | Update | Alignment | AS steering moved out of POY's way, 2 green beams onto PSL table | [Jenne, Jamie, Manasa, Ayaka]
Flipped mount of OM2, moved OM2 behind |
|
|
7688
|
Thu Nov 8 10:11:58 2012 |
Ayaka | Update | WienerFiltering | Play with wiener filtering | I will attach a document which describes
how the noise affect the wiener filter and
the noise cancellation ratio. |
|
|
7687
|
Thu Nov 8 09:04:45 2012 |
Steve | Update | Cameras | Canon T3i purchased | Canon
EOS Rebel T3i has been purchased. See
rating |
|
|
7686
|
Wed Nov 7 23:22:45 2012 |
rana | Update | Alignment | Jamie's tip tilt proposal | With Picos, we lose the ability to
dither the input beam as well as align the
beam with the IFO locked. And the active |
|
|
7685
|
Wed Nov 7 19:07:45 2012 |
Jenne | Update | Cameras | No beam seen on external camera views | I have written some scripts which collect
photos, then average them together, and subtract
out an averaged background (as Rana described |
|
|
7684
|
Wed Nov 7 17:20:01 2012 |
jamie | Update | Alignment | Jamie's tip tilt proposal |
|
|
|
7683
|
Wed Nov 7 15:51:44 2012 |
Jenne | Update | Alignment | Jamie's tip tilt proposal | Steve's elog
7682 is in response to the conversation
we had at group meeting re: Jamie's proposed |
|
|
7682
|
Wed Nov 7 15:17:15 2012 |
Steve | Update | Alignment | steering option with pico motor? | We have two ready for vacuum 1.5" mirror mounts
with pico motors in our hands.
|
|
|
7681
|
Wed Nov 7 14:59:35 2012 |
Steve | Update | PEM | high particle count ALART & oplevs |
|
|
|
7680
|
Wed Nov 7 11:43:29 2012 |
Steve | Update | PEM | high particle count ALART | The BS camber is open only. We should close
ASAP
Outside air quality is 1.7- 2.2 |
|
|
7679
|
Wed Nov 7 09:09:02 2012 |
Steve | Update | Alignment | Alignment- | PRM and SRM OSEM LL 1.5V are they misaligned? |
|
|
7678
|
Wed Nov 7 07:11:10 2012 |
rana | Update | Alignment | Alignment- POY and oplevs. photos. | The way to usually do image subtraction
is to:
1) Turn off the room lights. |
|
|
7677
|
Wed Nov 7 00:10:38 2012 |
Jenne | Update | Alignment | Alignment- POY and oplevs. photos. | Can we have a drawing of what you did, how
you confirmed your green alignment as the
same as the IR (I think you had a good idea |
|