ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
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224
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Thu Jan 3 12:38:49 2008 |
rob | Bureaucracy | TMI | Sore throat | [quote]
I did not feel anything wrong yesterday,
but [COLOR=red]unfortunately I have [/COLOR] |
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222
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Thu Jan 3 09:55:11 2008 |
steve | Update | SUS | etmy sus damping restored | ETMY watch dog was lost at midnight |
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221
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Thu Jan 3 09:12:59 2008 |
steve | Update | PSL | MZ servo | Here is MZ trend for one year and 40 days.
Now days it runs out of range on the low
side.
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220
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Thu Jan 3 08:53:55 2008 |
steve | Update | SUS | etmy vs etmx | Rana have corrected sus gain damping setting
of ETMY 8 days ago
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219
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Wed Jan 2 11:38:56 2008 |
tobin | Summary | WIKI-40M Update | wiki spam | Our wiki keeps getting spammed. It turns
out that you can upload attachments without
a password, which is a bug. I'll ask David |
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218
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Sun Dec 30 02:36:35 2007 |
pkp | Update | General | Another update | So I followed suggestions 1 and 3 so far and
have started writing up what all needs to
be done in order to compile and use the camera. |
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217
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Thu Dec 27 18:18:56 2007 |
rana | Update | Computers | Update on GigE Camera | [quote]So I finally got the linux software
to compile on mafalda. I got the software
to dump all the information regarding the |
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216
|
Thu Dec 27 13:08:04 2007 |
rana | Update | SUS | ETMY tripping | Here's a trend from the last 2 days of ETMX
and ETMY. You can see that the damping gain
increase
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215
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Thu Dec 27 12:12:02 2007 |
pkp | Update | | Update on GigE Camera | So I finally got the linux software to compile
on mafalda. I got the software to dump all
the information regarding the camera onto |
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214
|
Wed Dec 26 15:12:48 2007 |
rana | Update | SUS | ETMY tripping | It turned out that the ETMY POS damping gain
was set to 1.0 while the ETMX had 3.8.
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213
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Wed Dec 26 15:00:06 2007 |
rana | Update | SUS | ETMY tripping | Steve mentioned to me that ETMY is still tripping
more than ETMX. The attached DV plot
shows the trend of the watchdog sensors; |
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212
|
Sat Dec 22 15:32:11 2007 |
tobin | AoG | Environment | ants | Ants are everywhere: on the PSL table, on
the circuit board I'm soldering...
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211
|
Sat Dec 22 00:52:57 2007 |
tobin | Configuration | PSL | ISS surgery | In an attempt to quell oscillations in the
(unused) outer loop portion of the ISS, I
shorted the "PD+" and "PD-" signals from |
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210
|
Fri Dec 21 20:32:25 2007 |
tobin | Update | Photos | GigE camera | I couldn't resist any longer: I plugged in
the Prosilica GC 750 GigE camera and took
it for a spin. This is the little CMOS camera |
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209
|
Thu Dec 20 21:58:28 2007 |
Andrey | Summary | Computer Scripts / Programs | Results for 2 previous XARM measurements have been added |
I attached results (plots) of yesterday's
daytime and overnight measurements to the |
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208
|
Thu Dec 20 21:57:34 2007 |
Andrey | Update | Computer Scripts / Programs | Measurements in XARM today |
Today at 2PM I started a program, it should
change the suspension gains in the interval |
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207
|
Thu Dec 20 19:10:03 2007 |
waldman | Update | OMC | Stressful reattachment of heater | Photos may follow eventually, but for now
here's the rundown. I scraped the heater
clean of the thermal epoxy using a clean |
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206
|
Thu Dec 20 19:05:34 2007 |
waldman | HowTo | OMC | HOWTO build front ends | For instance, to build the TPT front end
code.
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205
|
Thu Dec 20 02:04:09 2007 |
Andrey | Update | Computer Scripts / Programs | New overnight measurements in XARM and their results |
I ran in the daytime/evening time my program,
changing the damping gains in suspension |
11x |
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204
|
Wed Dec 19 20:28:27 2007 |
Andrey | DAQ | PEM | Names for all 6 accelerometers have been changed |
I eventually [COLOR=red]changed the names
for all 6 accelerometers[/COLOR] (see my |
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203
|
Wed Dec 19 16:40:12 2007 |
steve | Update | SAFETY | laser safety glasses measured | I measured the coarse transission at 1064nm
of the 40m safety glasses today.
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202
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Wed Dec 19 16:07:37 2007 |
Andrey | Summary | Computer Scripts / Programs | Results of overnight measurements Tue/Wed night (entry #198) |
As indicated in ELOG entry 198, I was making
[COLOR=red]overnight measurements during |
11x |
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201
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Wed Dec 19 15:51:00 2007 |
Andrey | Update | Computer Scripts / Programs | Daytime measurements in XARM and their results |
I was making measurements in XARM for three
different nights. All the results agree with |
11x |
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200
|
Wed Dec 19 11:31:01 2007 |
steve | Omnistructure | PEM | aircond filter maintenance | Jeff is working on all air condiontion units
of the 40m lab
This we do every six months. |
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199
|
Tue Dec 18 23:41:00 2007 |
Andrey | Summary | Computer Scripts / Programs | Results of Mon/Tue overnight measurements (entry #194) |
Here I inform our community about the results
of the measurements of RMS values in XARM |
12x |
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198
|
Tue Dec 18 23:27:36 2007 |
Andrey | Configuration | Computer Scripts / Programs | New overnight measurements (this night from Tue to Wed) |
[COLOR=red]I am making overnight measurements
in XARM tonight.[/COLOR]
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197
|
Tue Dec 18 21:31:31 2007 |
tobin | Update | PSL | ISS RIN | My measurements of the ISS RIN via the SR785
and via the DAQ disagree considerably. The
spectral shapes are very similar, however, |
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196
|
Tue Dec 18 16:50:35 2007 |
tobin | Update | SAFETY | uvex laser safety glasses defective | A few days ago we noticed what appeared to
be a blotched, speckled fracturing of the
coating of the "UVEX" laser safety glasses. |
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195
|
Tue Dec 18 00:51:39 2007 |
Andrey | Update | Computer Scripts / Programs | Results of Saturday overnight measurements |
As I indicated in the previous e-log entry
(#194), I made overnight measurements in |
11x |
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194
|
Mon Dec 17 23:42:08 2007 |
Andrey | Configuration | Computer Scripts / Programs | Overnight measurements in X-arm |
I am making overnight measurements this night
(from Monday to Tuesday) in XARM.
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193
|
Mon Dec 17 11:47:13 2007 |
alberto | Update | Electronics | an alternative design for the RFAM monitor's filter at 33Mhz | Since the Butterworth turned out o be rather
wide-band, I tried an other configuration
for the 33 MHz filter. Attached are the simulated |
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192
|
Sun Dec 16 16:52:40 2007 |
dmass | Update | Computers | Computer on the end Fixed | I had Mike Pedraza look at the computer on
the end (tag c21256). It was running funny,
and turns out it was a bad HD.
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191
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Thu Dec 13 23:56:02 2007 |
Andrey | Configuration | Computer Scripts / Programs | Overnight measurements |
[COLOR=blue]After my disease[/COLOR] (fever,
vomitting, nose problem, overall weakness) |
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190
|
Thu Dec 13 12:05:36 2007 |
alberto | Omnistructure | Electronics | The new Butterworth seems to work quite well | It works better probably because of the small
inductors I'm using this time.
The peak is at 30 MHz because I didn't have |
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189
|
Wed Dec 12 22:24:48 2007 |
tobin | Frogs | PEM | weather station | I poked at the weather station briefly this
evening.
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188
|
Wed Dec 12 16:22:22 2007 |
alberto | Omnistructure | Electronics | LC filter for the RF-AM monitor circuit | In the LC configuration (see attached schematic)
the resonant frequency is tuned to one of
the peak of our RF-AM monitor and it is amplified |
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187
|
Mon Dec 10 20:35:59 2007 |
tobin | Configuration | Computer Scripts / Programs | autolocking scripts | I added this tidbit of csh code to the MZ
autolocker to prevent multiple copies from
running (on one computer):
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186
|
Mon Dec 10 19:08:03 2007 |
tobin | Configuration | PSL | MZ | The MZ seems finicky today--it keeps unlocking
and relocking.
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185
|
Mon Dec 10 18:42:20 2007 |
tobin | Update | PSL | ISS RIN script | I wrote a script to measure the ISS RIN.
The script uses the "labca" interface (described
in an [url=http://dziban.ligo.caltech.edu:40/40m/117]earlier |
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184
|
Mon Dec 10 13:54:26 2007 |
rob | HowTo | Computer Scripts / Programs | Don't blame the Matlab compiler |
For human error. We should be careful to
only run the compiler outside the mDV directory |
|
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183
|
Fri Dec 7 19:14:30 2007 |
tobin | Update | PSL | ISS dark noise - ground loop enlightenment | My alleged 60 Hz harmonics were all from a
ground loop created by connecting the SR785
ground to the ISS circuit ground; they disappeared |
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182
|
Fri Dec 7 18:31:30 2007 |
tobin | Update | Computer Scripts / Programs | compiled matlab hoses itself | Addendnum. The reason the linemon_mcr command
was in the path was because of the user issuing
the command "addpath(genpath(pwd))" where |
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181
|
Fri Dec 7 18:28:30 2007 |
tobin | Update | Computer Scripts / Programs | compiled matlab hoses itself | Andrey pointed out to me that some matlab
functions in the Signal Processing Toolbox
were dying with errors. Looking into the |
|
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180
|
Fri Dec 7 14:14:48 2007 |
rob | Metaphysics | Computer Scripts / Programs | tdsread problems on Solaris |
[COLOR=darkblue]tdsread[/COLOR] has developed
a strange new illness, whereby it cannot |
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179
|
Fri Dec 7 11:33:24 2007 |
waldman | Omnistructure | OMC | PZT wiring | The 2 pin LEMO connector has got an unmarked
pin and a pin marked by a white half-circle.
The unmarked pin is connected to the side |
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178
|
Fri Dec 7 00:02:26 2007 |
rana | Summary | IOO | MC/FSS Frequency Noise | [U][B]The FSS frequency noise is not very
bad.[/B][/U]
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177
|
Thu Dec 6 19:30:43 2007 |
tobin | Update | PSL | ISS dark noise - 60 Hz! | A higher resolution spectrum [attached] shows
that nearly all of the excess dark noise
on the ISS is in 60 Hz harmonics (with some |
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176
|
Thu Dec 6 19:19:47 2007 |
Andrey | Configuration | SUS | Suspension damping Gain was restored |
Suspension damping gain was disabled for
some reason (all the indicators in the most |
|
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175
|
Thu Dec 6 18:11:15 2007 |
rob | HowTo | Computer Scripts / Programs | Making DMF monitors |
I was able to use the matlab compiler to
compile a version of the [B]linetracker[/B] |
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174
|
Thu Dec 6 15:22:42 2007 |
Andrey | Summary | Electronics | Pictures of the inside of He-Ne laser |
Steve gave me an old "dead" He-Ne laser that
long time ago was used for ETMX optical lever.
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