| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
7202
|
Thu Aug 16 05:08:38 2012 |
Yoichi | Update | IOO | MC Servo Transfer Function Measurements |
|
|
|
7201
|
Thu Aug 16 01:52:52 2012 |
Yoichi | Update | IOO | MC Servo Transfer Function Measurements |
|
6x |
|
7200
|
Wed Aug 15 20:53:48 2012 |
Manasa | Update | IOO | Ringdown measurements |
|
|
|
7199
|
Wed Aug 15 20:15:51 2012 |
Jan | Update | IOO | Ringdown measurements |
|
|
|
7198
|
Wed Aug 15 18:56:46 2012 |
Yoichi | Update | IOO | MC Servo Transfer Function Measurements | I started working on the characterization
of the MC servo.
The current MC servo topology is |
|
|
7197
|
Wed Aug 15 17:23:22 2012 |
jamie | Update | CDS | front end IOP models changed to reflect actual physical hardware | As Rolf pointed out when he was here yesterday,
all of our IOPs are filled with parts for
ADCs and DACs that don't actually exist in |
|
|
7196
|
Wed Aug 15 17:17:58 2012 |
Manasa, Jan | Update | IOO | Ringdown measurements | Finally ringdown at IMC conquered and oopsie
that came out so clean!
The finesse of the cavity from the |
|
|
7195
|
Wed Aug 15 16:29:59 2012 |
Eric | Summary | General | SURF Update | This week I took more data for the calibration
of YARM. The summary of measurements |
|
|
7194
|
Wed Aug 15 16:01:47 2012 |
steve | Update | General | larger optical tables at the ends ? | The drawing of the 4' x 2' table
cover can be seen at entry #6190
The new proposed wall #7106 |
|
|
7193
|
Wed Aug 15 13:24:12 2012 |
Den | Update | CDS | RFM -> OAF | Transmission of signals between RFM and
OAF is bad again. Now we do not see any errors
in IPC_ERR monitors so models think that |
|
|
7192
|
Wed Aug 15 13:23:34 2012 |
Liz | Summary | Computer Scripts / Programs | Last Weekly Update | Over the past week I have been continuing
to finalize |
|
|
7191
|
Wed Aug 15 11:44:35 2012 |
jamie | Summary | LSC | ntp installed on all workstations |
|
|
|
7190
|
Wed Aug 15 11:40:15 2012 |
Yaakov | Summary | STACIS | Weekly Summary | This week I've been focusing mainly on
two things: 1) Designing a port for the STACIS
that will allow external actuation and/or |
|
|
7189
|
Wed Aug 15 10:40:16 2012 |
Den | Update | CDS | aa filters | The lack of AA filter for MCL signal is
RFM model strongly disturbed entering to
OAF signal |
|
|
7188
|
Wed Aug 15 09:09:45 2012 |
jamie | Update | LSC | LSC whitening triggers |
|
|
|
7187
|
Wed Aug 15 04:03:55 2012 |
rana | Summary | LSC | Y-Arm Locking | 0) Did a bunch of alignment to get beams
roughly centered on ETMY and ITMY and maximize
power. Adjusted the aperture and focus on |
|
|
7186
|
Wed Aug 15 01:14:19 2012 |
Yaakov | Update | PEM | Differential Motion of X and Y Arm | Den and I measured the differential motion
of the x and y arms using Guralp 1 at the
end of the y arm, Guralp 2 at the beamsplitter, |
|
|
7185
|
Wed Aug 15 00:52:17 2012 |
Den | Update | WienerFiltering | filter calculation | A Matlab script to calculate Wiener filter
coefficients and convert fir to iir is ready.
Input is a file with zero mean witness and |
|
|
7184
|
Tue Aug 14 22:16:46 2012 |
Jenne | Update | LSC | LSC whitening triggers | I'm ~30% of the way through implementing
LSC whitening filter triggers. I think
that everything I have done should be compile-able, |
|
|
7183
|
Tue Aug 14 21:01:51 2012 |
rana | Update | PEM | BLRMS | |
|
|
7182
|
Tue Aug 14 17:47:44 2012 |
Jamie | Update | CDS | c1sus machine replaced | Rolf and Alex came back over with a replacement
machine for c1sus. We removed the
old machine, removed it's timing, dolphin, |
|
|
7181
|
Tue Aug 14 16:33:51 2012 |
Sasha | Update | Computer Scripts / Programs | SimPlant indicator added | I added an indicator to the watch dog screen
so that a little "SP" icon appears
whenever the SimPlant is on. Since we only |
|
|
7180
|
Tue Aug 14 16:19:12 2012 |
Jenne | Update | Green Locking | Xend doubling crystal heater unplugged, replugged | I went down to the Xend table to look at
it to understand Steve's proposal, and I
noticed that the doubling crystal's heater's |
|
|
7179
|
Tue Aug 14 15:58:44 2012 |
Jenne | Update | General | Translation to English: larger optical tables at the ends |
|
|
|
7178
|
Tue Aug 14 14:26:40 2012 |
Steve | Update | Cameras | cameras touched up | I optimized the TM views with illuminator
light on quad1 It actually looks better
there. |
|
|
7177
|
Tue Aug 14 13:21:34 2012 |
Jenne | Update | CDS | IPC senders no nothing about rates of IPC receivers, we need to filter signals appropriately |
|
|
|
7176
|
Tue Aug 14 11:49:15 2012 |
Den | Update | CDS | Debugging of c1sus machine and c1rfm models |
|
|
|
7175
|
Tue Aug 14 11:46:22 2012 |
Jamie | Update | CDS | IPC senders know nothing about rates of IPC receivers, we need to filter signals appropriately |
|
|
|
7174
|
Tue Aug 14 11:39:13 2012 |
Jamie, Rolf, Alex | Update | CDS | Debugging of c1sus machine and c1rfm models | Rolf and Alex came over this morning to
see if they could help debug some issues
we have been seeing with IPC transmission |
|
|
7173
|
Tue Aug 14 11:33:14 2012 |
Jamie Alex Den | Update | CDS | AI and AA filters | When signals are transmitted between the
models running at different rates, no AI
or AA filters are automatically applied. |
|
|
7172
|
Tue Aug 14 08:43:42 2012 |
Steve | Update | IOO | laser off and on | The janitor accidentally hit the laser
emergency kill switch at room 103 entry
door. It did shut down the PSL laser. The |
|
|
7171
|
Tue Aug 14 04:53:45 2012 |
Yoichi | Summary | LSC | X-Arm noise spectrum | Yoichi, Rana
Here is the noise spectrum of the
X-arm error signal along with the TRX DC |
|
|
7170
|
Tue Aug 14 04:37:06 2012 |
Yoichi | Summary | LSC | XARM Open Loop Gain | Yoichi, Rana
Here is the open loop gain of the
XARM loop. |
|
|
7169
|
Tue Aug 14 04:32:49 2012 |
rana, yoichi | Update | Locking | POX signal sometimes looks very funny | The alignment was way off.
We moved the PZT, the BS, and the x arm to
get it to lock. Along the way we noticed |
|
|
7168
|
Tue Aug 14 00:42:40 2012 |
Jenne | Update | Locking | POX signal sometimes looks very funny | I'm trying to lock / align the Xarm, and
POX 11 I looks funny sometimes.
I attach 2 screenshots so you can |
|
|
7167
|
Mon Aug 13 23:06:08 2012 |
Jenne | Update | SUS | Simplant left on | Simplant for ETMX was left on, so I didn't
have control of ETMX. Not cool.
|
|
|
7166
|
Mon Aug 13 21:47:30 2012 |
Yaakov | Update | STACIS | Two changes to STACIS noise budget | In eLog 7148 (http://nodus.ligo.caltech.edu:8080/40m/7148),
Koji pointed out that the op-amp and SR560 noise values |
|
|
7165
|
Mon Aug 13 20:12:29 2012 |
jamie | Update | CDS | c1sup model moved to c1lsc machine | I moved the c1sup simplant model to the
c1lsc machine, where there was one remaining
available processor. This requires |
|
|
7164
|
Mon Aug 13 19:29:10 2012 |
Manasa | Summary | | Ringdown measurements | I tried to make ringdown measurements at
the IMC using the DC falling edge as the
trigger. Input to the MC was switched off |
|
|
7163
|
Mon Aug 13 18:00:30 2012 |
jamie | Update | General | larger optical tables at the ends |
|
|
|
7162
|
Mon Aug 13 17:31:19 2012 |
jamie | Update | CDS | mysterious stuck test points on c1spx model |
|
|
|
7161
|
Mon Aug 13 16:58:07 2012 |
jamie | Update | CDS | mysterious stuck test points on c1spx model | We were not able to open up any test points
in the revived c1spx model (dcuid 61).
Looking at the GDS_TP screen we found |
|
|
7160
|
Mon Aug 13 15:31:09 2012 |
steve | Update | General | larger optical tables at the ends | I'm proposing larger
optical tables at the ends to avoid the
existing overcrowding. This would allow the |
|
|
7159
|
Mon Aug 13 12:17:41 2012 |
Manasa | Configuration | IOO | PD from AP table removed | The PD (pda255) at the AP table, close
to the MC refl , which Steve mentioned to
be not in use, has been removed from the |
|
|
7158
|
Mon Aug 13 09:59:05 2012 |
Koji | Update | General | Mysterious banging on emergency door | You mean 5000?
|
|
|
7157
|
Mon Aug 13 01:33:55 2012 |
Den | Update | General | Mysterious banging on emergency door |
|
|
|
7156
|
Mon Aug 13 00:33:06 2012 |
Masha | Update | General | Mysterious banging on emergency door | [Masha, Sasha]
Sorry to spam the e-log, but did
someone come knock loudly on the emergency |
|
|
7155
|
Sun Aug 12 10:34:45 2012 |
Koji | Update | SAFETY | exit door left unlocked | I unlocked the door on Tuesday in order
to move the red cart.
After that I confirmed that the door |
|
|
7154
|
Sun Aug 12 01:21:26 2012 |
steve | Update | SAFETY | exit door left unlocked | Caltech security called me at 1am Sunday.
Control room emergency |
|
|
7153
|
Sat Aug 11 18:57:07 2012 |
Den | Update | PEM | seismometer location | STS-2 - end of X arm
GUR 2 - isolation box
TRILLIUM - 1Y3 (DC power supply uses |
|