| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
9882
|
Wed Apr 30 17:45:34 2014 |
jamie | Update | CDS | c1ioo now on Dolphin network | For reference, here are the new IPC entries
that were made for the ALS X/Y phase between
c1als and c1lsc: |
|
|
9881
|
Wed Apr 30 17:07:19 2014 |
jamie | Update | CDS | c1ioo now on Dolphin network | The
c1ioo host is now fully on the dolphin network!
After the mx |
|
|
9880
|
Wed Apr 30 16:07:59 2014 |
manasa | Update | LSC | ALS X noise post servo modification | I. The Y arm stayed stable through last
night and I have saved the arm lock settings
to IFOconfigure. |
|
|
9879
|
Wed Apr 30 14:21:50 2014 |
manasa | Update | CDS | fb restarted | c1sus and c1isey were not talking to fb.
The usual mxstream restart did not help.
Restarted fb |
|
|
9878
|
Wed Apr 30 11:16:41 2014 |
Steve | Update | IOO | this typical morning | c1sus and c1iscey were reset. The PMC needed
to be locked. MC locked instantly.
The FSS ion pump power supply was |
|
|
9877
|
Wed Apr 30 00:40:55 2014 |
manasa | Configuration | LSC | Y arm IR lock troubleshooting | [Koji, Manasa]
The |
|
|
9876
|
Tue Apr 29 16:42:29 2014 |
Steve | Update | VAC | TP2 drypump replaced |
|
|
|
9875
|
Tue Apr 29 10:01:25 2014 |
Koji | Configuration | General | netgpibdata is working again now | I've moved the WB network analyzer to the
OMC lab. The 40m network analyzer is not
in service for the MC monitoring. |
|
|
9874
|
Tue Apr 29 01:10:16 2014 |
Koji | Configuration | LSC | New ALS servo implemented for the X arm | New ALS servo performance
Attachment 1:
Comparison between the old ( |
|
|
9873
|
Tue Apr 29 00:11:03 2014 |
steve | Update | safety | safety audit 2014 | Be aware that
this may affect POP QPD and POP RF Thorlabs |
|
|
9872
|
Mon Apr 28 23:05:03 2014 |
Jenne | Update | LSC | ALS CARM and DARM settings | [Jenne, Koji]
The IFO is being uncooperative tonight,
and I have an early morning meeting, so I'm |
|
|
9871
|
Mon Apr 28 20:31:38 2014 |
rana | Summary | IOO | MC2_TRANS QPD Servo trend | This is a 4-day trend. I don't see any
difference here which is significant. My
guess is that the MC_TRANS servo gain is |
|
|
9870
|
Mon Apr 28 17:27:29 2014 |
steve | Update | safety | safety audit 2014 |
|
|
|
9869
|
Mon Apr 28 15:47:57 2014 |
manasa | Summary | IOO | MC2_TRANS QPD Servo trend |
|
|
|
9868
|
Mon Apr 28 13:18:18 2014 |
Jenne | Update | LSC | LSC offsets script modified |
|
|
|
9867
|
Mon Apr 28 11:08:11 2014 |
Koji | Update | LSC | New ALS servo design: expected error signals | Here are the MATLAB scripts and LISO codes
for all of these servo analyses |
|
|
9866
|
Mon Apr 28 11:03:57 2014 |
Koji | Configuration | LSC | New ALS servo implemented for the X arm | The
new ALS/LSC servo was implemented for the
X arm. |
|
|
9865
|
Mon Apr 28 10:59:54 2014 |
Koji | Update | LSC | New ALS servo design: expected error signals | The expected error signals derived from
the estimated free running error signals
of the ALS. |
|
|
9864
|
Mon Apr 28 10:48:48 2014 |
Koji | Update | LSC | new ALS servo design: comparison | Comparison of the new and old servo
OLTF
The new servo has the same UGF, slightly |
|
|
9863
|
Mon Apr 28 10:34:51 2014 |
Koji | Update | LSC | new ALS servo design | Based on the evaluation of the error signals,
the new servo was designed.
Concept: |
|
|
9862
|
Mon Apr 28 10:24:10 2014 |
Koji | Update | LSC | error signal characterization | As we now have the loop model, we can characterize
the error signals.
We have the following data: |
|
|
9861
|
Sun Apr 27 21:30:59 2014 |
Koji | Update | LSC | ALS servo characterization | The measured openloop TF of the ALS servo
for each was characterized by a ZPK model.
The openloop TF can be modeled by: |
|
|
9860
|
Sun Apr 27 20:26:19 2014 |
Koji | Update | LSC | Phase Tracker servo characterization | The measured open loop TF of the ALS Phase
Tracker loop for each arm was characterized
by an empirical model on LISO. |
|
|
9859
|
Sun Apr 27 19:53:54 2014 |
ericq | Update | LSC | PRFP YArm Locking | Inspired by a comment by Koji the other
day, I spent some time yesterday and today
working on locking a (very lossy) power recycled |
|
|
9858
|
Sat Apr 26 13:19:59 2014 |
ericq | Summary | IOO | MC2_TRANS QPD Servo re-re-engaged again |
|
|
|
9857
|
Fri Apr 25 23:08:57 2014 |
rana | Summary | IOO | MC2_TRANS QPD Servo re-re-engaged again | We turned on the MC2_TRANS paths for both
PIT/YAW tonight. |
|
|
9856
|
Fri Apr 25 22:20:01 2014 |
rana | Update | IOO | csh/tcsh hackery combatted | To make the mcwfson/off scripts work from
rossa (and not just Jamie's pet machine)
I swapped the sh-bang line at the top of |
|
|
9855
|
Fri Apr 25 13:18:08 2014 |
Dark Jamie | Update | LSC | locking activity |
|
|
|
9854
|
Fri Apr 25 10:43:57 2014 |
Koji | Update | LSC | (Fixed) Y end whitening board | I went to WB and found the last spare
module of D990399 revB. We need to thank
Frank for his foresight. |
|
|
9853
|
Fri Apr 25 03:14:46 2014 |
ericq | Update | LSC | locking activity | [ericq, Jenne, Zach]
We spent some time tonight trying
to push our CARM locking further, to little |
|
|
9852
|
Thu Apr 24 23:55:31 2014 |
Koji | Update | LSC | Y end whitening board | The main problem was a panel fixing bolt
that caused the short circuits between power |
|
|
9851
|
Thu Apr 24 22:39:14 2014 |
rana | Configuration | General | netgpibdata is working again now |
|
|
|
9850
|
Thu Apr 24 16:25:31 2014 |
ericq | Update | LSC | Quick CM servo prep | I added ~1m of cable to the LO side of
the REFL11 Demodulator, which brought its
PRCL demod phase to about 8 degrees. According |
|
|
9849
|
Thu Apr 24 14:23:09 2014 |
not manasa | Update | LSC | Y end whitening board |
maybe the tantalum caps on
the daughter board power supply lines are |
|
|
9848
|
Thu Apr 24 14:00:42 2014 |
Jenne | Update | LSC | Locking without TRY | Here is 1 second of data, with REFLDC,
POPDC and TRX:
|
|
|
9847
|
Thu Apr 24 11:19:50 2014 |
Koji | Update | LSC | Locking without TRY | This seems the ever best stability at the
zero offset PRFPMI.
Can you look at REFLDC in this data |
|
|
9846
|
Thu Apr 24 02:12:05 2014 |
Jenne | Update | LSC | Locking without TRY | I tried some locking anyway tonight,
even though we don't have TRY.
The biggest conclusion is that I |
|
|
9845
|
Thu Apr 24 00:11:35 2014 |
Jenne | Update | LSC | Yend shutter back. |
|
|
|
9844
|
Wed Apr 23 23:48:30 2014 |
manasa | Update | LSC | Y end whitening board | The MON outputs of the Y end QPD whitening
board were hot earlier today while pulling
it out of the crate. After swapping |
|
|
9843
|
Wed Apr 23 19:58:00 2014 |
manasa | Update | LSC | TRY 60Hz noise | [Steve, Manasa]
To find noise source
1. Swapped the power cable of the |
|
|
9842
|
Tue Apr 22 22:49:10 2014 |
rana | Update | LSC | TRY 60Hz noise |
The detectors and electronics
on this table are not properly isolated. |
|
|
9841
|
Tue Apr 22 21:54:50 2014 |
manasa | Update | LSC | TRY 60Hz noise |
|
|
|
9840
|
Tue Apr 22 02:14:55 2014 |
ericq | Update | LSC | lock acquisition path for the CM servo | In an effort to familiarize myself with
the analog CM servo, I've begun to replicate
Koji and Den's work from the ELOG post that |
|
|
9839
|
Tue Apr 22 01:39:57 2014 |
Jenne | Update | CDS | FB unhappy again | [Jenne, Q]
The frame builder (or something)
is unhappy again. I know that we've |
|
|
9838
|
Tue Apr 22 01:11:42 2014 |
Jenne | Update | LSC | TRY 60Hz noise |
|
|
|
9837
|
Mon Apr 21 23:33:57 2014 |
rana | Summary | Green Locking | HP 8591E reads low by 140 Hz out of 10 MHz | To
check the basolute frequency stability of
the old monochrome HP 8591E RF Spectrum analyzer |
|
|
9836
|
Mon Apr 21 22:53:16 2014 |
manasa | Update | LSC | ALS noise |
|
|
|
9835
|
Mon Apr 21 22:32:33 2014 |
rana | Configuration | General | netgpibdata is working again now | Not working again. I tried the commands
in Koji's elog as well as the ones from my
notes, but the AG 4395 hooked up to the yellow |
|
|
9834
|
Mon Apr 21 10:14:00 2014 |
Steve | Update | VAC | Maglev controller serviced |
|
|
|
9833
|
Sun Apr 20 18:15:37 2014 |
ericq | Update | IOO | Cleaner Cleanup | Came in, and the PMC and MC needed aligning.
PMC Trans .74->.83
I wasn't able to move the MC1&3 |
|