| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
5208
|
Fri Aug 12 15:34:16 2011 |
Nicole | Summary | SUS | Bode Plot for TT Suspension |
|
|
|
5207
|
Fri Aug 12 15:16:56 2011 |
jamie | Update | SUS | today's SUS overview | Here's an update of the suspensions, after
yesterdays in-vacuum work and OSEM tweaking:
PRM and ETMY are completely |
|
|
5206
|
Fri Aug 12 14:15:07 2011 |
Nicole | Summary | SUS | Bode Plot for TT Suspension | Here is my bode plot comparing the flexibly-supported
and rigidly-supported EDCs (both with no
bar) |
|
|
5205
|
Fri Aug 12 11:07:50 2011 |
Nicole | Summary | SUS | More TT Shaking Completed This Morning | This morning (about 10am to 11am), I have
collected additional transfer function measurements
for the T.T. suspension. I have finished |
|
|
5204
|
Fri Aug 12 04:11:13 2011 |
kiwamu | Update | SUS | free swinging | Excited all optics - -
Fri Aug 12 03:34:12 PDT 2011
997180467 |
|
|
5203
|
Fri Aug 12 03:52:51 2011 |
kiwamu | Update | SUS | PRM OSEM adjustment | [Suresh / Kiwamu]
We |
|
|
5202
|
Fri Aug 12 03:49:45 2011 |
Jenny | Summary | PSL | NPRO PDH-Locked to Ref Cav |
|
|
|
5201
|
Fri Aug 12 00:18:30 2011 |
Ishwita, Manuel | Update | PEM | Coherence of Guralp1 and STS2(Bacardi, Serial NR 100151) |
We moved the seismometer STS2(Bacardi,
Serial NR 100151) as we told in this Elog |
|
|
5200
|
Thu Aug 11 19:14:22 2011 |
Ishwita , Manuel | Update | PEM | Seismometer STS2(Bacardi, Serial NR 100151) moved near ETMX | We moved the STS2(Bacardi, Serial NR 100151)
to his new location and laid his cable from rack |
|
|
5199
|
Thu Aug 11 19:01:45 2011 |
Suresh | Update | SUS | ITMX given a kick to start it freeswing' but to no avail. | We started an ITMX freeswing run at this
time
Thu Aug 11 18:58:59 PDT 2011 |
|
|
5198
|
Thu Aug 11 18:30:40 2011 |
Koji | Update | SUS | ITMY OSEM adjustment | [Jamie, Koji]
ITMX
OSEMs were adjusted so as to have the right |
|
|
5197
|
Thu Aug 11 16:21:16 2011 |
Ishwita , Manuel | Update | PEM | Power spectra and Coherence of Guralps and STS2 |
Following is the power spectrum
plot (with |
|
|
5196
|
Thu Aug 11 16:15:59 2011 |
Ishwita, Manuel | Update | PEM | Calibration of Guralp and STS2 |
Finally, we have found the correct
calibration of Guralp and STS2 seismometers. |
|
|
5195
|
Thu Aug 11 16:09:05 2011 |
Nicole | Summary | SUS | Bode Plot for TT Suspension | All of my plots have already taken into
account the calibration of the photosensor
(V/mm ratio) |
6x |
|
5194
|
Thu Aug 11 16:07:37 2011 |
steve | Update | SUS | ETMY rack cables strain releived | |
|
|
5193
|
Thu Aug 11 15:31:43 2011 |
steve | Update | General | malfunctioning crane at ETMY |
|
|
|
5192
|
Thu Aug 11 14:32:12 2011 |
Koji | Summary | SUS | Photosensor Head Calibration Curve for TT Frame | The entry was quite confusing owing to
many misleading wordings.
- The PS2 should be calibrated "as |
|
|
5191
|
Thu Aug 11 14:22:00 2011 |
Nicole | Summary | SUS | Photosensor Head Calibration Curve for TT Frame |
|
|
|
5190
|
Thu Aug 11 13:41:36 2011 |
Ishwita, Manuel | Update | PEM | Coherence of Guralp1 and STS2(Bacardi, Serial NR 100151) | Following is the coherence plot obtained
when Guralp1 and STS2(Bacardi, Serial NR
100151) are placed very close to each other |
|
|
5189
|
Thu Aug 11 12:54:06 2011 |
kiwamu | Update | IOO | MC spot positions | The
spot positions on the MC mirrors were adjusted
by steering the MC mirrors, resulting in |
|
|
5188
|
Thu Aug 11 12:31:39 2011 |
Nicole | Summary | SUS | Photosensor Head Calibration Curve for TT Frame | I have re-calibrated the photosensor I
used to measure the displacements of the
TT frame (what I call "Photosensor 2"). |
|
|
5187
|
Thu Aug 11 11:50:56 2011 |
Manuel , Ishwita | Update | PEM | Calibration of Guralp and STS2 |
We just checked with a function
generator the calibration of the ADC. We |
|
|
5186
|
Thu Aug 11 10:56:08 2011 |
Ishwita, Manuel | Update | PEM | Moving Seismometers |
|
|
|
5185
|
Thu Aug 11 09:39:25 2011 |
Ishwita, Manuel | Update | PEM | Calibration of Guralp and STS2 |
|
|
|
5184
|
Thu Aug 11 08:29:28 2011 |
steve | Update | Computers | dataviewer at Rosalba | I'm having this problem with DTV every
morning at Rosalba only. It wants to start
with a negative GPS time and it can not connect |
|
|
5183
|
Thu Aug 11 06:45:14 2011 |
Nicole | Summary | SUS | Shaking Testing | Koji and I have finished shaking the table for the
first round of measurements (horizontal shaking). |
|
|
5182
|
Thu Aug 11 04:45:07 2011 |
Suresh | Update | IOO | Aligning the 1064nm beam with the in-vacuum pzt's | [Kiwamu, Suresh]
We worked on the beam path from MC
to BS this evening. |
|
|
5181
|
Thu Aug 11 02:16:57 2011 |
Jenne | Update | Green Locking | Y-green aligned and flashing | [Jenne, with ample supervision by Kiwamu
and Suresh]
Y-green was aligned, and is now flashing. |
|
|
5180
|
Wed Aug 10 22:47:22 2011 |
rana | Summary | VAC | Vacuum Workstation (linux3) re-activated | For some reason the workstation at the
vac rack was off and unplugged. Nicole and
I plugged its power back in to the EX rack. |
|
|
5179
|
Wed Aug 10 20:40:17 2011 |
Jenny | Update | PSL | PDH locking: got an error signal | I ended up choosing a different dither
frequency for driving the NPRO PZT: 230 kHz,
because the phase modulation response in |
|
|
5178
|
Wed Aug 10 19:18:26 2011 |
Nicole | Summary | SUS | Fixed Reflective Photosensors; Recalibrated Photosensor 2 | Thanks to Koji's help, the second photosensor,
which was not working, has been fixed. I
have re-calibrated the photosensor after |
|
|
5177
|
Wed Aug 10 18:25:45 2011 |
Jenne | Update | SUS | ETMY mini-update | [Jenne, Jamie]
ETMY is now in its new nominal position,
according to the rails that Kiwamu put in |
|
|
5176
|
Wed Aug 10 15:39:33 2011 |
jamie | Update | SUS | current SUS input diagonalization overview | Below is the overview of all the core IFO
suspension input diagonalizatidons.
Summary: ITMY, |
7x |
|
5175
|
Wed Aug 10 15:17:39 2011 |
Ishwita, Manuel | Update | PEM | Calibration of Guralp and STS2 |
|
|
|
5174
|
Wed Aug 10 14:35:39 2011 |
rana | Update | PEM | Calibration of Guralp and STS2 | I'm pretty sure that don't have any ADC's
with this gain. It should be +/- 10V for
16 bits. |
|
|
5173
|
Wed Aug 10 14:30:55 2011 |
kiwamu | Update | IOO | Re: MC A2L alignment | I modified a set of the automated MC
locking scripts which are dedicated for the
low power MC. |
|
|
5172
|
Wed Aug 10 14:27:39 2011 |
Ishwita , Manuel | Update | PEM | Calibration of Guralp and STS2 | ADC:
216counts = 4V Hence, calibration
of ADC is 214counts/V. |
|
|
5171
|
Wed Aug 10 13:52:23 2011 |
Manuel , Ishwita | Update | PEM | Moving Seismometers | We turned off the power of the seismometers
and moved the Guralp1 close to the STS. Both
are now situated below the center of the |
|
|
5170
|
Wed Aug 10 12:33:34 2011 |
Manuel, Ishwita | Summary | PEM | Weekly summary | We got the results of the wiener filtering
simulations (Elog
Entry) |
|
|
5169
|
Wed Aug 10 12:32:09 2011 |
Nicole | Summary | SUS | Weekly Summary Update | Last night, I attached a metal plate to
the Vout faceplate of my photosensor circuit
box because the BNC connection terminals |
|
|
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). |
|
|
5167
|
Wed Aug 10 11:22:55 2011 |
Suresh | Update | IOO | MC A2L alignment | [Kiwamu, Suresh]
We attempted to minimise the A2L
coupling in the MC mirrors (centering the |
|
|
5166
|
Wed Aug 10 07:59:33 2011 |
steve | Update | SUS | this is too dam nice |
|
|
|
5165
|
Wed Aug 10 02:40:40 2011 |
Jenny | Update | PSL | Dither freq for PZT chosen: 2.418 MHz | I've finished using the network analyzer
to characterize find a dither frequency for
driving the PZT to use in my PDH locking. |
|
|
5164
|
Wed Aug 10 02:29:38 2011 |
Jenne | Update | SUS | ETMY exploration |
|
|
|
5163
|
Wed Aug 10 01:40:40 2011 |
Koji | Update | SUS | ETMY exploration | [Rana Koji Jenne Jamie]
- The situation of the ETMY suspension
is improved. |
|
|
5162
|
Wed Aug 10 00:21:10 2011 |
jamie | Update | CDS | updates to peakFit scripts | I updated the peakFit routines to make
them a bit more user friendly:
modified so that any subset |
|
|
5161
|
Wed Aug 10 00:11:39 2011 |
jamie | Update | SUS | check of input diagnolization of ETMX after OSEM tweaking | Suresh and I tweaked the OSEM angles in
ETMX yesterday. Last night the ETMs
were left free swinging, and today I ran |
|
|
5160
|
Tue Aug 9 19:53:56 2011 |
Nicole | Summary | SUS | Weekly Summary | This week, I have finished assembling everything
I need to begin shaking. I built an intermediary
mounting stage to mount the TT suspension |
|
|
5159
|
Tue Aug 9 16:54:47 2011 |
steve | Update | VAC | scratch on vac door | Jenne found a big scratch on the north
vac door of ITMY. Fortunately it does not
reach the inner annulos 0 -ring seal. |
|