| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
6534
|
Fri Apr 13 16:09:43 2012 |
Suresh | Update | Computer Scripts / Programs | ACAD 2002 installed on C21530 | I have installed
ACAD 2002 on one of the Windows machines |
|
|
1120
|
Fri Nov 7 08:08:00 2008 |
steve | Update | PEM | AC turned off in IFO room | All [COLOR=red]tree[/COLOR] AC units in IFO
room 104 switched off at 7:45am
I'm looking for the periodic thump signal |
|
|
6273
|
Fri Feb 10 15:54:27 2012 |
steve | Update | PEM | AC turned back ON | The air cond was off for 2 hrs. I
just switched it back on at 15:51 |
|
|
7856
|
Wed Dec 19 11:53:23 2012 |
Steve | Update | VAC | AC removed | Koji, Manasa, Jenne, Jamie, Bob and
Steve
Access connector removed this morning |
|
|
8933
|
Mon Jul 29 16:04:40 2013 |
Steve | Update | VAC | AC removed | Manasa, Eric, Evan, Koji and Steve,
Access connector removed in order
to complete alignment. Light aluminum with |
|
|
8934
|
Mon Jul 29 16:15:13 2013 |
Koji | Update | VAC | AC removed | Prior to the access connector removal,
Manasa and I aligned the IFO mirrors.
The arms were locked and aligned by |
|
|
6432
|
Wed Mar 21 10:31:28 2012 |
steve | Update | SAFETY | AC power to ETMY turned off | ETMY sus damping was disabled. Green locking
laser and associated electronics turned off.
Computers and power supplies turned off at |
|
|
6433
|
Wed Mar 21 11:32:47 2012 |
steve | Update | SAFETY | AC power to ETMX turned off |
|
|
|
6864
|
Mon Jun 25 08:21:40 2012 |
steve | Update | General | AC power disturbance on Sat |
|
|
|
6434
|
Wed Mar 21 19:12:27 2012 |
steve | Update | Computers | AC power back on both ends |
|
|
|
2842
|
Mon Apr 26 11:13:28 2010 |
steve | Omnistructure | PEM | AC on/off is working |
|
|
|
1121
|
Fri Nov 7 10:52:57 2008 |
steve | Update | PEM | AC is back on | The 20 minutes and 6 sec thumps are not related
to the 40m ac units
This period is precisely right on so it is |
|
|
1122
|
Fri Nov 7 15:58:10 2008 |
rana | Update | PEM | AC is back on | I'll bet Steve a dollar that it is mechanical.
The attached PDF compares all of the accelerometers
from right now.
|
|
|
5988
|
Wed Nov 23 14:47:14 2011 |
Jenne | Configuration | Environment | AC in the IFO room was off | I turned it back on, maybe around 11am?
Definitely a little while before the 12:30
meeting. |
|
|
16054
|
Tue Apr 20 10:52:49 2021 |
Anchal, Paco | Update | SUS | AC gain coil output balancing for IMC | [Paco, Anchal]
We adopted the following
procedure to balance the coil output gains |
|
|
960
|
Wed Sep 17 19:13:47 2008 |
Alberto | Update | General | ABSL: status | I installed the setup for measuring TEM01/10
on the X end table.
I'm leaving. I shut the laser, flipped down |
|
|
979
|
Mon Sep 22 20:00:35 2008 |
Alberto | Update | General | ABSL: running measurement | I'm leaving the X arm locked on the TEm01
mode while a measurement is running. Just
please wait for 40 minute if you need the |
|
|
956
|
Wed Sep 17 13:58:36 2008 |
Alberto | Update | General | ABSL: results from the X arm | Today I repeated the measurement of the FSR
on the X arm cavity. The noise in the transmitted
power that made the measures fluctuate was |
|
|
946
|
Sun Sep 14 18:30:32 2008 |
Alberto | Update | General | ABSL: measured X arm | Today I measured the X arm FSR.
Hi moved the fast PD (Thor Labs PDA255) from
the Y end table to the X end table. I had |
|
|
947
|
Sun Sep 14 19:29:07 2008 |
Alberto | Update | General | ABSL: measured X arm | [quote]Today I measured the X arm FSR.
Hi moved the fast PD (Thor Labs PDA255) from
the Y end table to the X end table. I had |
|
|
987
|
Wed Sep 24 17:57:04 2008 |
Alberto | Update | General | ABSL: FSS Slow Actuator Control | Rana, Alberto
Today when I started working with the PLL |
|
|
8303
|
Mon Mar 18 12:02:12 2013 |
Annalisa | Configuration | ABSL | ABSL setup for g-factor measurement of PRC | Motivations
The ABSL
technique has been already used in the past
to measure the |
|
|
4940
|
Tue Jul 5 17:38:46 2011 |
kiwamu | Update | ABSL | ABSL laser frequency-locked | In this
past weekend the ABSL laser was successfully |
|
|
5117
|
Thu Aug 4 09:42:19 2011 |
Koji | Update | ABSL | ABSL Laser shutter closed | The shutter of the ABSL laser is closed
for the vent work. |
|
|
5064
|
Sat Jul 30 00:33:33 2011 |
Koji | Update | PSL | ABSL Laser crystal temp left largely excited & left unattended for more than 3hours | I
found that the ref cav trans CCD view was
blinking with 30-50 fringe amplitudes. This |
|
|
5065
|
Sat Jul 30 02:47:43 2011 |
rana | Update | PSL | ABSL Laser crystal temp left largely excited & left unattended for more than 3hours | Hmm. Should have only been +/- 1
GHz. Some setting got changed apparently...
This is a part of the RefCav temperature |
|
|
4996
|
Wed Jul 20 06:52:01 2011 |
Suresh | Update | LSC | ABSL - PSL beat lock | The ABSL locking setup to the PSL is down.
According
the plan, I started to use the IR beam dumped
after the doubling crystal for the IR beat |
|
|
8581
|
Wed May 15 17:38:49 2013 |
Jamie | Summary | CDS | AA/AI requirements |
|
|
|
15709
|
Fri Dec 4 19:23:40 2020 |
Koji | Update | Electronics | AA/AI board testing ongoing | I have the setup built for the AA/AI board
testing around the PD testing area. Please
let me leave it like that for a week or so. |
|
|
422
|
Wed Apr 16 21:11:12 2008 |
rana | Summary | DAQ | AA/AI Filters for the DAQ & FE systems | I used Foton to make up some new filters which
will be used all over the project in order
to downsample/upsample.
|
|
|
3911
|
Fri Nov 12 20:40:51 2010 |
josephb, yuta, valera | Configuration | Electronics | AA voltage range | We changed the range of the two SUS AA
boards in the corner from +/-2 V to +/-10
V by changing the supply voltage from +/-5 |
|
|
5022
|
Sun Jul 24 20:36:03 2011 |
haixing | Summary | Electronics | AA filter tolerance analysis | Koji and Haixing,
We did a tolerance analysis to specify
the conner frequency for passive low-pass |
6x |
|
5023
|
Sun Jul 24 20:47:21 2011 |
rana | Summary | Electronics | AA filter tolerance analysis | This is sort of OK, except the capacitor
connects across the (+) terminals of the
two input opamps, and does not connect to |
|
|
5024
|
Sun Jul 24 22:19:19 2011 |
haixing | Summary | Electronics | AA filter tolerance analysis |
>> This sort of OK, except
the capacitor connects across the (+) terminals |
|
|
5038
|
Tue Jul 26 21:11:40 2011 |
haixing | Summary | Electronics | AA filter tolerance analysis | |
|
|
4748
|
Thu May 19 12:09:41 2011 |
josephb | Update | CDS | AA filter box pulled from 1X5, optic suspensions currently off | [Steve, Joe]
Steve pulled the top AA filter box
from 1X5 which handled some of the suspensions |
|
|
4750
|
Thu May 19 17:53:03 2011 |
steve | Update | CDS | AA filter box modified at 1X5 |
|
|
|
15744
|
Tue Dec 22 22:11:37 2020 |
gautam | Update | CDS | AA filt repaired and reinstalled | Koji fixed the problematic channel - the
issue was a bad solder joint on the input
resistors to the THS4131. The board was re-installed. |
|
|
5168
|
Wed Aug 10 12:28:22 2011 |
Ishwita , Manuel | Update | PEM | AA board gain | We used a function generator, an oscilloscope
and the Data Viewer to check the gain of
the new AA board (used for the seismometers). |
|
|
4959
|
Mon Jul 11 10:10:31 2011 |
Ishwita | Configuration | | AA board | The AA board shown in attachment 1 will
be used in the seismometer hardware setup.
A cartoon of this setup is shown in attachment |
|
|
4979
|
Sat Jul 16 18:54:05 2011 |
Ishwita, Manuel | Configuration | Electronics | AA board | We fixed the anti-aliasing board in its
aluminum black box, the box couldn't
be covered entirely because of the outgoing |
|
|
7543
|
Sun Oct 14 20:51:20 2012 |
Den | Update | PEM | AA board |
|
|
|
7546
|
Mon Oct 15 10:14:22 2012 |
Den | Update | PEM | AA board |
|
|
|
8555
|
Thu May 9 00:05:12 2013 |
rana, Koji, Jenne | Summary | LSC | AA and AI change | We would
like to increase the UGF of the PRC loop |
|
|
3806
|
Thu Oct 28 04:23:38 2010 |
rana | Update | IOO | A2L prep | To get the angle to length signal before
the c1ioo processor gets going, we need a
length signal. We can use either the error |
|
|
13996
|
Thu Jun 21 14:23:22 2018 |
Udit Khandelwal | Summary | General | A summary of the Tip-TIlt Mirror Holder design changes | Here’s a quick summary of the Tip-Tilt
Design updates (all files are in the dropbox
in [TipTiltSus>TT_New]) that I have been |
|
|
13997
|
Thu Jun 21 14:57:59 2018 |
Koji | Summary | General | A summary of the Tip-TIlt Mirror Holder design changes | > 2. Weighted screw rod at the
bottom for tilting the mirror-holder:
Too long. The design of the holder |
|
|
1409
|
Thu Mar 19 02:45:36 2009 |
Yoichi | Configuration | IOO | A loose wire found for MC1 | I found a loose connection of a wire in the
cross-connect between an ADC and the MC1
coil driver's UL bias input.
|
|
|
1410
|
Thu Mar 19 10:45:43 2009 |
Yoichi | Configuration | IOO | A loose wire found for MC1 | I attached a 6-hour trend of the MC mirror
OSEM signals with the MC unlocked.
The drift of the MC1 is within 20 counts |
|
|
15073
|
Wed Dec 4 19:54:27 2019 |
gautam | Update | LSC | A look to the past | Trawling
through some past elogs, I saw that the ALS
noise increase as a function of CARM offset |
|