ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
427
|
Fri Apr 18 16:48:13 2008 |
Andrey | Update | PEM | Rain collector of weather station |
Today the rain collector of our weather station
was cleaned. As a result, we checked that |
|
|
426
|
Fri Apr 18 16:27:04 2008 |
rob | Update | SUS | end station sus front-end bug fix | [quote]installed and started new susEtmx.o
and susEtmy.o to fix a problem with ETMY
optical lever variables.[/quote]
|
|
|
425
|
Fri Apr 18 16:02:58 2008 |
alex | Update | SUS | end station sus front-end bug fix | installed and started new susEtmx.o and susEtmy.o
to fix a problem with ETMY optical lever
variables. |
|
|
424
|
Thu Apr 17 20:17:37 2008 |
Andrey | Update | PEM | Two issues with our weather station |
I encountered two difficulties working with
the "Weather Station".
|
|
|
423
|
Thu Apr 17 15:00:59 2008 |
steve | Update | VAC | vac controller computer to be replaced | Now that Rosalba is up and running someone
should step forward to volunteer for this
job.
|
|
|
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.
|
|
|
421
|
Wed Apr 16 10:20:01 2008 |
Andrey | Update | Computers | Rosalba and linux3 | [quote]There is a new computer in the control
room -- its called [B][COLOR=purple]Rosalba[/COLOR][/B],
in keeping with our naming convention. Its |
|
|
420
|
Wed Apr 16 09:47:35 2008 |
Andrey | Summary | PEM | Weather Station | The weather station is functional again.
The long ethernet Cat5 cable connecting 'WeatherLink' |
|
|
419
|
Tue Apr 15 18:44:25 2008 |
rana | Configuration | Computers | Rosalba | There is a new computer in the control room
-- its called [B][COLOR=purple]Rosalba[/COLOR][/B],
in keeping with our naming convention. Its |
|
|
418
|
Tue Apr 8 09:08:54 2008 |
steve | Configuration | PEM | weather station disconnected | We can not leave cables in the walkways and
go on vacation.
I disconnected the weather station from the |
|
|
417
|
Mon Apr 7 18:58:49 2008 |
steve | Update | General | reflectivity of SS304 | The reflectivity of stainless steel 304 super
polished # 8 was measured the same way as
elog entry 409
|
|
|
416
|
Mon Apr 7 16:42:56 2008 |
rana | Update | Computers | eLog intermittent | Phil Ehrens restarted Dziban again this morning.
Looks like its still crashing each Monday
around 8 AM.
|
|
|
414
|
Fri Apr 4 16:54:06 2008 |
Andrey | Summary | Environment | Weather station is fully alive |
[COLOR=blue]After today's trip to the roof
of our building the weather station seems |
|
|
413
|
Thu Apr 3 19:27:50 2008 |
Andrey | Summary | Photos | Tour for prospective grad students | Last Friday (March 28), there was a tour of
40-meter lab for prospective graduate students.
|
|
|
412
|
Thu Apr 3 18:46:04 2008 |
Andrey | Configuration | Computers | "Network switch board" and "c1pem1 crate" were touched |
While working with the weather station, I
did two things that potentially (with a very |
|
|
410
|
Thu Apr 3 18:33:17 2008 |
Andrey | Summary | Environment | Status of Weather Station |
During the last two days some things related
to weather station have been improved.
|
|
|
409
|
Wed Apr 2 15:03:51 2008 |
steve | Update | General | reflectivity of black glass | The reflectivity of black glass, shade 12
was supplied by Donald O'Shea
of Emerald Glass Inc., Westlake, OH 44145
|
|
|
408
|
Mon Mar 31 14:14:16 2008 |
rob | Update | Computers | c1susvme2 status | [quote]c1susvme2 is getting worse and worse.
it won't run for more than ~45 minutes without
fatally de-syncing. for now I've turned |
|
|
407
|
Mon Mar 31 14:01:40 2008 |
jamie | Summary | LSC | Summary of DC readout PD non-linearity measurements | From March 21-26, I conducted some measurements
of the response non-linearity of some mock-up
DC readout photodetectors. The detectors |
|
|
406
|
Fri Mar 28 16:18:18 2008 |
rob | Update | Computers | c1susvme2 status | c1susvme2 is getting worse and worse. it
won't run for more than ~45 minutes without
fatally de-syncing. for now I've turned |
|
|
405
|
Wed Mar 26 22:26:15 2008 |
John | Update | Computers | c1susvme | I removed the fan and tweaked the timing cables
to see if they were the source of our problems.
I saw no effect. I'm leaving the fan off |
|
|
404
|
Wed Mar 26 13:41:53 2008 |
Andrey | HowTo | SUS | Modification of ''C1DRIFT_MONITOR'' | I learned how to modify the drift-monitor
in MEDM so that values on it change colors
from green to yellow to red depending how |
|
|
403
|
Tue Mar 25 16:34:47 2008 |
rob | Update | Computers | c1susvme2 | [quote][quote]c1susvme2 isn't behaving itself.
It keeps getting out of sync and/or giving
a red status light.
|
|
|
402
|
Tue Mar 25 15:56:09 2008 |
John | Update | Treasure | Assorted pictures | Some pictures scavenged from the D40. |
|
|
401
|
Tue Mar 25 13:21:25 2008 |
Andrey | Update | Computers | c1susvme2 is not behaving itself again | |
|
|
400
|
Tue Mar 25 10:44:24 2008 |
rob | Update | Computers | c1susvme2 | [quote]c1susvme2 isn't behaving itself. It
keeps getting out of sync and/or giving a
red status light.
|
|
|
399
|
Mon Mar 24 20:15:03 2008 |
John | Summary | Computers | c1susvme2 | c1susvme2 isn't behaving itself. It keeps
getting out of sync and/or giving a red status
light.
|
|
|
398
|
Mon Mar 24 13:03:54 2008 |
rob | Update | Electronics | HP4195A is back |
[quote]The swept sine output looks totally |
|
|
397
|
Sun Mar 23 10:42:54 2008 |
Valera | Summary | Electronics | RFAM of the RF stabilization box is measured | I reconstructed Tobin's setup to measure the
RFAM after the RF stabilization box in the
166 MHz modulation path.
|
|
|
396
|
Sun Mar 23 00:56:42 2008 |
John | Update | LSC | More on 3f | We ended our last attempt at 3f locking concerned
about the beam size on PD6. I investigated
tonight. The beam was not obviously overfilling |
|
|
395
|
Sun Mar 23 00:43:08 2008 |
mevans | HowTo | General | Online Adaptive Filtering | I wrote a short document about the OAF running
on the ASS. Since there is no BURT setup,
I put a script in /cvs/cds/caltech/scripts |
|
|
394
|
Sat Mar 22 22:39:02 2008 |
mevans | Summary | CDS | Direct Form 2 filters are bad | Here I show a comparison between the filter
algorithm currently used in LIGO (Direct
Form II), and an alternative algorithm designed |
|
|
392
|
Fri Mar 21 23:17:47 2008 |
rana | Configuration | DMF | seisBLRMS restarted | I updated the seisBLRMS par file with the
new channel names of the accelerometers and
the seismometer and then
|
|
|
391
|
Fri Mar 21 23:15:11 2008 |
rana | Configuration | PEM | Ranger SS-1: New Setup | The Ranger seismometer has been in a bad state.
Its output had been sent into a SR560 without
any termination.
|
|
|
390
|
Fri Mar 21 17:01:21 2008 |
rana | Configuration | DMF | Locale change on Mafalda & seisBLRMS restart | Ever since we moved the accelerometers to
be around the MC and changed their names,
the seisBLRMS
|
|
|
389
|
Fri Mar 21 11:54:38 2008 |
rob | Update | VAC | tp 2 failed | [quote]Small turbo #2 is the forepump of the
maglev.
It failed last night, shut down the maglev |
|
|
388
|
Fri Mar 21 09:02:03 2008 |
steve | Update | VAC | tp 2 failed | Small turbo #2 is the forepump of the maglev.
It failed last night, shut down the maglev
and interlock closed V1
|
|
|
387
|
Thu Mar 20 17:45:36 2008 |
rana | Summary | ASS | Adaptive Filtering in the ASS system | Over the past couple weeks we (Matt, Alex,
Rob, me) have worked on getting an adaptive
filter
|
|
|
386
|
Thu Mar 20 16:06:27 2008 |
rob | Configuration | LSC | LSC code change |
I changed the LSC code again. I noticed
that when turning off the LSC (e.g., going |
|
|
385
|
Thu Mar 20 15:28:20 2008 |
steve | Update | VAC | tp2 's drypump replaced | The fore pump of tp2 was replaced at fore
line pressure 998m Torr |
|
|
384
|
Mon Mar 17 18:30:48 2008 |
mevans | Configuration | PEM | Adaptive Filtering | It seems that adaptive filtering can achieve
results similar to those of the MISO FIR
Wiener (entry 369). The adaptive code simulates |
|
|
383
|
Sun Mar 16 17:03:32 2008 |
rob | Configuration | CDS | ASS code change |
I've updated the ass.mdl file in the directory:
|
|
|
382
|
Fri Mar 14 16:56:03 2008 |
Dmass | Bureaucracy | Computers | New 40m control machine. | I priced out a new control machine from Dell
and had Steve buy it.
|
|
|
381
|
Fri Mar 14 15:52:07 2008 |
rob | Configuration | LSC | LSC code change |
I've edited the LSC code to send different
signals to the ASS box. Now, instead of |
|
|
380
|
Fri Mar 14 15:06:24 2008 |
rob | Update | Computer Scripts / Programs | routing PEM -> ASS -> SUS_MCL | [quote]
on ASS RFM 1 has PEM signals at
|
|
|
379
|
Fri Mar 14 14:59:51 2008 |
josephb | Configuration | Cameras | Comparison between GC650 (CCD) and GC750 (CMOS) looking at ETMX | Attached are images taken of ETMX while locked.
The first two are 300,000 microsecond exposure |
|
|
378
|
Fri Mar 14 12:06:29 2008 |
josephb | Configuration | Cameras | GC750 looking at ETMX while locked | The GC750 (CMOS) is currently looking at the
front of ETMX. Unfortunately, its being
routed through a 10Mbit connection (which |
|
|
377
|
Thu Mar 13 18:20:29 2008 |
John | Update | General | New Focus 4003 EOM 29.489MHz | I measured the modulation index as a function
of drive power using an OSA. Agrees well
with spec of 0.2 rad/V.
|
|
|
376
|
Thu Mar 13 13:15:09 2008 |
aivanov | Update | Computer Scripts / Programs | new sfotware intall, backup files | New:
op440m:40m>ls -alt /cvs/cds/caltech/target/c1susvme[12]/*.o
-rw-r--r-- 1 controls staff 57920 |
|
|
375
|
Thu Mar 13 12:11:58 2008 |
aivanov | Update | Computer Scripts / Programs | routing PEM -> ASS -> SUS_MCL |
on ASS RFM 1 has PEM signals at
|
|