ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
4734
|
Tue May 17 19:38:32 2011 |
kiwamu | Update | SUS | wrong connection on 1X5 | Today Steve was working around the 1X5
rack to strain relief the cable jungles and
the |
 |
4752
|
Fri May 20 01:02:50 2011 |
loose connection hunter | Update | SUS | loose connection on ETMY rack | The
UL signal of the shadow sensor on ETMY went
to zero this evening. |
|
4775
|
Tue May 31 17:30:42 2011 |
steve | Update | SUS | ETMY damping restored | ETMY's watch dogs were found tripped. They
were restored. |
|
4780
|
Thu Jun 2 16:23:42 2011 |
Jamie | Update | SUS | SUS control models updated to use new sus_single_control library part | A new library part was made for the single
suspension controller (it was originally
made from the c1scx controller), using the |
|
4791
|
Mon Jun 6 22:41:22 2011 |
rana | Update | SUS | Switching problem in SUS models | Some
weeks ago, Joe, Jamie, and I reworked the
ETMY controls. |
|
4792
|
Mon Jun 6 23:56:16 2011 |
rana, valera | Configuration | SUS | ETMX/ETMY OSEM whitening | We measured the OSEM PD whitening
transfer function of the ETMX OSEM UL whitening
stage ( |
|
4793
|
Tue Jun 7 11:39:27 2011 |
Jamie | Update | SUS | No binary output module in ETMY |
|
|
4802
|
Thu Jun 9 20:10:38 2011 |
kiwamu | Update | SUS | ETMY whitening filter : all off | I checked
the state of the whitening filters for the |
|
4827
|
Thu Jun 16 00:43:36 2011 |
Koji | Update | SUS | Vertex SUS Binary Output Boxes were turned off / need investigation | - I was investigating the SUS whitening
issue.
- I could not find any suspension |
|
4828
|
Thu Jun 16 08:45:14 2011 |
steve | Update | SUS | Vertex SUS Binary Output Boxes removed |
|
|
4829
|
Thu Jun 16 23:19:09 2011 |
Koji | Update | SUS | Vertex SUS Binary Output Boxes removed | [Jamie, Koji]
- We found the reason why some
of the LEDs had no light. It was because |
|
4831
|
Fri Jun 17 08:03:48 2011 |
steve | Update | SUS | ITMY sus damping restored | ITMY sus damping restored.
|
|
4833
|
Fri Jun 17 17:02:15 2011 |
Jamie | Update | SUS | ETMX/ETMY binary output modules (re)installed, not yet tested | I have installed a new binary output module
in ETMY, where there was none previously.
It is installed, powered (with working LEDs), |
|
4836
|
Mon Jun 20 09:04:13 2011 |
steve | Update | SUS | ETMX damping restored | ETMX sus damping restored |
|
4839
|
Mon Jun 20 11:04:03 2011 |
Nicole | Update | SUS | Work Plan for Week 2 | Here is my work plan for this week:
Current Week Plan (Week 2) |
|
4844
|
Mon Jun 20 18:12:20 2011 |
Nicole | Update | SUS | Small Table Cleaned and Levelled | |
 |
4853
|
Wed Jun 22 12:24:44 2011 |
Nicole | Summary | SUS | Midweek 2 Work Summary | I
have made my transfer function model |
|
4858
|
Wed Jun 22 18:41:23 2011 |
Nicole | Summary | SUS | BROKEN bread board circuit box and L9337 LED Current Versus Voltage Curve | NOTE: The potentiometers on the |
|
4868
|
Thu Jun 23 21:35:46 2011 |
Jamie, Rana, Kiwamu | Update | SUS | Fix calibration for sus sensors | We have fixed the counts-to-micron (cts2um)
calibration for the suspension sensor filters.
Each suspension sensor filter bank (e.g. |
|
4869
|
Thu Jun 23 22:00:22 2011 |
Jamie | Update | SUS | burt snapshot | I recorded a burt snapshot of these settings:
/opt/rtcds/caltech/c1/burt/autoburt/snapshots/2011/Jun/23/21:40 |
|
4875
|
Fri Jun 24 01:05:32 2011 |
Nicole | Summary | SUS | Transfer Function Model Analysis Summary and New Posted LED V vs. I Curve | I have updated |
|
4876
|
Fri Jun 24 07:40:23 2011 |
steve | Update | SUS | PRM damping restored | The PRM sus damping restored. C1:SUS-PRM_SDPD_VAR
is still 20-30mV and going up. Side
gain turned on. This pulled it down |
|
4879
|
Fri Jun 24 17:04:25 2011 |
Nicole | Update | SUS | Basic Laser Safety Training; Moved TT Mirror; Horizontal Displacement Mech Plan | Today Ishwita,
Sonali, and I completed basic laser safety |
 |
4887
|
Sun Jun 26 18:35:16 2011 |
rana | HowTo | SUS | free swing all optics | I used scripts/SUS/freeswing-all.csh to
give the optics a kick and then turn off
their watchdogs and collect the free swinging |
|
4892
|
Tue Jun 28 01:18:53 2011 |
rana | HowTo | SUS | free swing all optics | Chris Wipf tells me that the EPICS Mutex
Jumbo Mumbo can be overcome by upgrading
our EPICS. We should get one of Jamie's assistants |
|
4902
|
Tue Jun 28 21:05:05 2011 |
Jamie | Update | SUS | SUS control model updated | I have updated the sus_single_control model,
adjusting/cleaning up/simplifying the LSC/POS
input signals, and routing new signals to |
|
4904
|
Tue Jun 28 22:36:04 2011 |
Jamie | Update | SUS | Checking binary switching of SUS whitening filter | I have been checking the binary output
switching for the SUS whitening filters.
It appears that the whitening switching is |
|
4906
|
Wed Jun 29 01:23:21 2011 |
haixing | Update | SUS | issues in the current quad maglev system | Here I show several issues that we have
encountered in the quad magnetic levitation
system. It would be great if you can give |
|
4907
|
Wed Jun 29 11:13:13 2011 |
Jenne | Update | SUS | issues in the current quad maglev system |
|
|
4908
|
Wed Jun 29 11:25:07 2011 |
Nicole | Summary | SUS | Weekly Summary of Work | Update of Week
3 Work: |
|
4913
|
Wed Jun 29 22:35:06 2011 |
Nicole | Summary | SUS | Completed Quad photodiode Box Circuit Diagrams | I have finished
drawing the circ |
  |
4916
|
Thu Jun 30 01:50:02 2011 |
Jenne | Update | SUS | ITMX whitening, ETMX left free swinging | While closing up the whitening shop for
the night, I noticed that the ITMX whitening
state (Whitening "On") is opposite |
|
4921
|
Thu Jun 30 11:36:54 2011 |
Jamie | Update | SUS | Re: ITMX whitening, ETMX left free swinging |
|
|
4929
|
Fri Jul 1 16:01:48 2011 |
Jamie | Update | SUS | ETM binary whitening switching fixed | I have fixed the binary whitening switching
for the ETMs (ETMX and ETMY). See below
for a description of what some of the issues |
|
4930
|
Fri Jul 1 18:41:53 2011 |
Jamie | Update | SUS | Core optic sus damping controllers normalized | I found many of the core optic (ETMs, ITMs,
BS, PRM, SRM) suspension DOF damping controllers
(SUSPOS, SUSPIT, SUSYAW, SUSSIDE) to be in |
|
4931
|
Fri Jul 1 18:48:13 2011 |
Jamie | Update | SUS | ETMY sus controller found to be in a bad state | I'm not sure what happened to ETMY SUS,
but it was in a pretty bad state. Bad
burt restore, I would guess. |
|
4932
|
Fri Jul 1 18:54:34 2011 |
Jamie | Update | SUS | ETMY binary whitening switching confirmed to be fixed | After finally figuring out what was messed
up with ETMY I was able to get good measurements |
|
4933
|
Fri Jul 1 20:22:24 2011 |
rana | Update | SUS | ETMY sus controller found to be in a bad state | Actually, ETMY was the only good one. They
should all have the 30 Hz High pass as the
damping filter. I think these details are |
|
4934
|
Fri Jul 1 20:26:29 2011 |
rana | Summary | SUS | All SUS Peaks have been fit |
MC1 MC2
MC3 ETMX ETMY |
|
4938
|
Tue Jul 5 13:35:56 2011 |
steve | Update | SUS | PRM damping restored | The PRM sus damping was restored. It's
side rms motion came down from 35 to 4 mV
immediately. |
|
4941
|
Tue Jul 5 18:57:10 2011 |
Jamie | Update | SUS | More normalization of all sus controllers | Based on Rana's
comment I have gone through and moved
all of the corner frequencies for the high |
|
4942
|
Tue Jul 5 21:26:51 2011 |
rana | Update | SUS | More normalization of all sus controllers | This is getting closer, but with the whitening
left OFF and the cts2um filter also OFF,
none |
|
4943
|
Wed Jul 6 02:12:36 2011 |
kiwamu | Update | SUS | Re : More normalization of all sus controllers | [Jenne / Rana/ Kiwamu]
|
|
4944
|
Wed Jul 6 10:35:35 2011 |
Jamie | Update | SUS | Re : More normalization of all sus controllers |
|
|
4945
|
Wed Jul 6 11:45:20 2011 |
Jamie | Update | SUS | More normalization of all sus controllers |
|
|
4946
|
Wed Jul 6 15:32:32 2011 |
Jamie | Update | SUS | Re : More normalization of all sus controllers | So after talking to Kiwamu about it, I
understand now that since the damping loops
need all of this extra gain when the high-pass |
|
4947
|
Wed Jul 6 16:44:37 2011 |
steve, kiwamu | Update | SUS | BS oplev spectra | Healthy BS oplev |
|
4948
|
Wed Jul 6 18:15:26 2011 |
kiwamu | Update | SUS | Re: BS oplev spectra | [Steve / Kiwamu]
Motivation:
|
|
4956
|
Fri Jul 8 09:53:49 2011 |
Nicole | Summary | SUS | Summer Progress Report 1 | A copy of my summer
progress report 1 has been uploaded to ligodcc |
|
4963
|
Tue Jul 12 17:30:24 2011 |
steve, | Update | SUS | BS oplev spectra |
|
|