| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
1148
|
Wed Nov 19 18:12:35 2008 |
rana | Configuration | IOO | new channel for MC drum modes | I set up the lockin to take the MC Demod Board's
Qmon signal, demodulate it at 27.5 kHz, and
put the output into a DAQ channel (I think |
|
|
1147
|
Wed Nov 19 18:02:18 2008 |
rana | Configuration | Electronics | All the Marconi Set to the Rubidium Frequency Standard | Not sure what was going on before. I changed
the frequency counter to use an AC coupled
input, and had it average
|
|
|
1146
|
Wed Nov 19 10:32:11 2008 |
Alberto | Configuration | Electronics | All the Marconi Set to the Rubidium Frequency Standard | I placed the SRS Rubidium FS275 over the PSL
rack, next to the frequency counter. This
one and the Marconi on the PSL rack have |
|
|
1145
|
Tue Nov 18 19:44:53 2008 |
Alberto | Update | General | X Arm Cavity "Negative" FSRs Measured | Previous measurements on the X arm cavity
revealed a shift of the frequencies of the
cavity resonances from where one would expect |
|
|
1144
|
Tue Nov 18 19:37:23 2008 |
Yoichi | Update | IOO | MC1 OSEM signals sign flipped and c1susvme1 restart problem | Around 2PM, MC1 started to swing crazily.
The damping feedback was not working and |
|
|
1143
|
Tue Nov 18 13:28:08 2008 |
Caryn | DAQ | IOO | new channel for MC drum modes | Alberto has added a channel for the Mode Cleaner
drum modes.
C1:IOO-MC_DRUM1
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1142
|
Mon Nov 17 20:47:19 2008 |
Caryn | Summary | General | Drove MC at 28kHz to excite drum modes | Rana, Alberto and I observed drum mode frequencies
at 23.221kHz(MC1), 28.039kHz(MC2), 28.222kHz(MC3)
while driving the mode cleaner. We observed |
|
|
1141
|
Mon Nov 17 16:59:22 2008 |
Jenne | Update | PEM | Seismometer hooked up, reading channels on DataViewer | Alberto, Jenne
The Guralp Seismometer is (finally) hooked |
|
|
1140
|
Mon Nov 17 15:07:06 2008 |
Yoichi | Update | PSL | Reference cavity ring down | I used MATLAB's system identification tool
box to estimate the response of the reference
cavity, i.e. cavity pole.
|
|
|
1139
|
Mon Nov 17 11:01:15 2008 |
Alberto | HowTo | Electronics | Calibrating the Frequency Standard of the Marconi | I locked the [COLOR=purple][I]SRS Rubidium
Frequency Standard FS275[/I][/COLOR] to the
the 1pps from the GPS. The specs from the |
|
|
1138
|
Fri Nov 14 22:40:51 2008 |
Yoichi | Update | PSL | Reference cavity ring down | [quote]
To make the DEI pulser make a fast pulse
on the EO shutter EOMs, we had to make sure:
|
|
|
1137
|
Fri Nov 14 20:35:47 2008 |
rana | Update | PSL | Reference cavity ring down | To make the DEI pulser make a fast pulse on
the EO shutter EOMs, we had to make sure:
|
|
|
1136
|
Fri Nov 14 19:20:42 2008 |
Yoichi | Update | PSL | Reference cavity ring down | Thanks to Bob making the high-voltage BNC
cables for the HV pulse generator, I was
able to operate the EOM in front of
|
|
|
1135
|
Fri Nov 14 17:41:50 2008 |
Jenne | Omnistructure | Electronics | Sweet New Soldering Iron | The fancy new Weller Soldering Iron is now
hooked up on the electronics bench.
|
|
|
1134
|
Fri Nov 14 11:33:19 2008 |
steve | Update | VAC | SRS-RGA installed | Old Dycor rga is removed and new SRS-RGA200
installed.
It is pumped down and ready for hooking up |
|
|
1133
|
Thu Nov 13 15:50:44 2008 |
Alberto | Configuration | General | GPS 10MHz clock | The schematic of the 1Y7 rack that Alan pointed
out (see attachment) don't represent anymore
the actual rack.
|
|
|
1132
|
Thu Nov 13 11:33:25 2008 |
Alberto | HowTo | Treasure | Making (good) Matlab figures | Just a little summary of some useful ways
to change plot settings in Matlab that I
wanted to share and remember for the future:
|
|
|
1131
|
Wed Nov 12 11:36:13 2008 |
Jenne | Update | PEM | Guralp Breakout Box is ~50% hooked up | The Guralp box is about halfway hooked up
now. The seismometer is under the BSC, and
the long cable from the seismometer to the |
|
|
1130
|
Wed Nov 12 11:14:59 2008 |
Caryn | DAQ | PSL | MC temp sensor hooked up incorrectly | MC Temperature sensor was not hooked up correctly.
It turns out that for the 4 pin LEMO connections
on the DAQ like J13, J14, etc. the channels |
|
|
1129
|
Mon Nov 10 19:39:40 2008 |
steve | Update | PEM | thump noise from particle counter | The particle counter is back on the IOOC location
on a piece of FOAM
It needs this isolation, so when the pump |
|
|
1127
|
Mon Nov 10 16:44:14 2008 |
steve | Update | PEM | particle counter at MC2 | The particle counter was moved to MC2 table
temporarily.
It is clamped to the table at the south west |
|
|
1126
|
Mon Nov 10 11:32:49 2008 |
rob | Update | Computers | c1iscex rebooted |
it was running a few cycles late |
|
|
1125
|
Mon Nov 10 11:06:09 2008 |
rob | HowTo | IOO | mode cleaner locked |
I found the mode cleaner unlocked, with (at
least) MC1 badly mis-aligned. After checking |
|
|
1124
|
Fri Nov 7 18:38:19 2008 |
Alberto | DAQ | PSL | MC temperature sensor hooked up | Alberto, Rana,
we found that the computer handling the signals
from ICS-110B was C1IOVME so we restarted |
|
|
1123
|
Fri Nov 7 16:05:55 2008 |
steve | Bureaucracy | SAFETY | insect killer sprayed at kitchen area ! |
Bob and I cleaned out the sink area and sprayed
Spectracide's BUG STOP insect killer solution |
|
|
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.
|
|
|
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 |
|
|
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 |
|
|
1119
|
Thu Nov 6 22:07:56 2008 |
rana | Configuration | Computers | ELOG compile on Solaris | From the ELOG web pages:
Solaris:
|
|
|
1117
|
Thu Nov 6 10:06:41 2008 |
steve | Update | Locking | arms lock degradation | I have been locking the arms in the mornings
lately.
The daily drift of LSC-TRX is ~ 15% and LSC-TRY |
|
|
1116
|
Thu Nov 6 09:45:27 2008 |
steve | Update | MOPA | head temp hick-up vs power | The control room AC temp was lowered from
74F to 70F around Oct 10
This hold the head temp rock solid 18.45C |
|
|
1115
|
Wed Nov 5 12:41:36 2008 |
Alberto | Update | LSC | Absolute Length and g-factor measurements conclusions | [SIZE=4][B][COLOR=green]Absolute Length and
g-Factor Measurement for the 40m Arm Cavities,
Summary of Results[/COLOR][/B][/SIZE]
|
|
|
1114
|
Tue Nov 4 17:58:42 2008 |
Alberto | DAQ | PSL | MC temperature sensor | I added a channel for the temperature sensor
on the MC1/MC3 chamber: C1:PSL-MC_TEMP_SEN.
To do that I had to reboot the frame builder. |
|
|
1113
|
Tue Nov 4 01:03:01 2008 |
rana | Summary | PEM | periodic thump noise in MC1_ACC | [B]There seems to be a periodic thump seen
by the MC1 Accelerometers as well as the
surrounding optics.[/B]
|
|
|
1112
|
Tue Nov 4 00:47:53 2008 |
rana | Update | ASS | Wiener Filter performance over 5 hours | Same as before, but now with a working Ranger
seismometer.
|
|
|
1111
|
Mon Nov 3 22:35:40 2008 |
rana | Update | ASS | Wiener Filter performance over 5 hours | [FONT=Comic Sans MS]To speed up the Wiener
filter work I defined a 256 Hz version of
the original 16kHz IOO-MC_L signal. The
|
|
|
1110
|
Mon Nov 3 21:38:32 2008 |
Yoichi | Configuration | General | new elog | [quote]I tried to recompile the elog from
the source code but the way gcc is called
must be wrong because I get this error message:
|
|
|
1109
|
Mon Nov 3 19:18:47 2008 |
Alberto | Configuration | General | new elog | Phil Ehrens kindly poured our elog's content
in a CD that now is here at the 40m.
I've been trying to install the 2.7.5 version |
|
|
1108
|
Mon Nov 3 19:12:27 2008 |
alberto | Update | General | Transverse mode spacing measurement for the X arm | I know a lot of expectations have been building
up on these days in the scientific community
at the 40m towards a conclusive elog entry |
|
|
1107
|
Mon Nov 3 09:59:47 2008 |
steve | Update | PSL | PSL HEPAs turned on | The psl [COLOR=chocolate]enclosure[/COLOR]
HEPAs were tuned on.
|
|
|
1106
|
Sun Nov 2 21:37:22 2008 |
rana | Update | PEM | Ranger recovery | The ranger signal has been bad since around
11 AM on Oct 25 (last Saturday). There are
no elog
|
|
|
1105
|
Sun Nov 2 20:44:58 2008 |
rana | Update | ASS | Wiener Filter performance over 5 hours | I took one 2 hour stretch of data to calculate
a MISO Wiener filter to subtract the Ranger
seismometer
|
|
|
1104
|
Sun Nov 2 20:21:58 2008 |
rana | Configuration | lore | HP 5550dtn (Grazia) set up on allegra | I set up printing to grazia from allegra.
The CUPS interface was not as straightforward
as Tobin had made it seem in the Wiki. I |
|
|
1103
|
Fri Oct 31 08:52:19 2008 |
steve | Update | SUS | ETMY damping restored | ETMY watchdogs were tripped yesterday morning
also. This is a problem that existed some
months ago.(?)
|
|
|
1102
|
Thu Oct 30 20:39:47 2008 |
caryn | Configuration | PEM | temperature sensor | We attached the temperature sensor box to
the MC1/MC3 chamber with a C-clamp. We connected
the temp sensor to a 2nd box with a short |
|
|
1101
|
Thu Oct 30 11:07:25 2008 |
Yoichi | Update | Computers | Wireless bridges arrived | Five wireless bridges for the GPIB-Ethernet
converters arrived.
One of them had a broken AC adapter. We have |
|
|
1100
|
Wed Oct 29 12:54:28 2008 |
Jenne | Update | PEM | Calibrated Guralp Noise compared to average ground motion | Here is a calibrated noise plot of the Guralp
seismometer box. This is the same noise
measured on Friday, measured at TP3 (just |
|
|
1099
|
Wed Oct 29 12:23:04 2008 |
Yoichi | Configuration | PSL | MZ alignment touched and the alarm level changed | Since the MZ reflection is alarming all the
time, I tried to improve the MZ alignment
by touching the folding mirror.
|
|
|
1098
|
Tue Oct 28 12:01:01 2008 |
josephb | Configuration | Computers | linux2 | [quote]I have removed linux2 and its cables
from the control room and put it into 1Y3
along with op340m.
|
|
|
1097
|
Tue Oct 28 11:10:18 2008 |
Alberto | Update | LSC | Higher Order Mode resonances in the X arms | [quote]Recently we had been having some trouble
locking the full IFO in the [COLOR=green][I][FONT=Verdana]spring[/FONT][/I][/COLOR]
configuration (SRC on [COLOR=blue]+166[/COLOR]).
|
|