| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
10183
|
Fri Jul 11 11:51:03 2014 |
Nichin | Update | Electronics | PDFR: List of DC transimpedances | The following
values are going to be entered in the param_[PDname].yml
file for each PD. I am elogging them for |
|
|
2432
|
Sat Dec 19 14:33:25 2009 |
Koji | Configuration | Computers | PDFlib lite / gnuplot 4.2.6 on Rosalba/Allegra | In order to enable 'set terminal pdf' in
gnuplot on Rosalba/Allegra, I installed PDFlib
lite and gnuplot v4.2.6. to them. |
|
|
11498
|
Wed Aug 12 14:35:46 2015 |
ericq | Update | Computer Scripts / Programs | PDFs in ELOG | I've tweaked the ELOG code to allow
uploading of PDFs by drag-and-drop into
the main editor window. Once again we can |
|
|
5808
|
Fri Nov 4 13:13:25 2011 |
Zach | Update | Green Locking | PDH box #17 modified, too | I also modified the Y-Arm PDH box itself
slightly. Previously, there was a flying
10k resistor from the SWEEP input to TP2. |
|
|
15218
|
Fri Feb 21 10:59:08 2020 |
shruti | Update | ALS | PDH error signals? | |
|
|
15219
|
Fri Feb 21 13:02:53 2020 |
Koji | Update | ALS | PDH error signals? | Check out this elog:
ELOG
4354 |
|
|
5179
|
Wed Aug 10 20:40:17 2011 |
Jenny | Update | PSL | PDH locking: got an error signal | I ended up choosing a different dither
frequency for driving the NPRO PZT: 230 kHz,
because the phase modulation response in |
|
|
11959
|
Fri Jan 29 08:18:13 2016 |
Steve | Update | PEM | PEM |
|
|
|
17
|
Fri Oct 26 09:10:17 2007 |
steve | Routine | PEM | PEM &PSL trend | The fires are out, lab particle counts are
up.
Psl HEPAs are at 100% and mobel HEPAs are |
|
|
7230
|
Sun Aug 19 19:02:47 2012 |
Den | Update | CDS | PEM -> RFM -> OAF | Data from PEM now goes directly to OAF
without using RFM. Transmission RFM ->
OAF errors are gone as RFM has to read 30 |
|
|
4825
|
Wed Jun 15 16:37:56 2011 |
Jenne | Update | PEM | PEM AA Board has been diagnosed and fixed | [Jenne, Steve]
After talking with Steve, I had a
look at the PEM's AA board, to see what the |
|
|
4826
|
Thu Jun 16 00:39:08 2011 |
Koji | Update | PEM | PEM AA Board has been diagnosed and fixed | As
seen in the photo, the board has a strange
bulge |
|
|
13788
|
Wed Apr 25 17:44:39 2018 |
Arnold | Update | PEM | PEM Anti-Alias wiring |
|
|
|
13790
|
Thu Apr 26 09:35:49 2018 |
Kevin | Update | PEM | PEM Anti-Alias wiring | I wired all 32 channels going to the AA
board directly to the ADC as described in
the previous |
|
|
14949
|
Tue Oct 8 08:08:18 2019 |
gautam | Update | PEM | PEM BLRMS anomaly | Yesterday, Koji and I noticed (from the
wall StripTool traces) that the vertex seismometer
RMS between 0.1-0.3 Hz in the X-direction |
|
|
14989
|
Wed Oct 23 11:49:21 2019 |
gautam | Update | PEM | PEM BLRMS anomaly | I looked into the seismometer situation
a bit more today. Here is the story so far
- I think more investigation is required: |
|
|
3977
|
Tue Nov 23 14:52:28 2010 |
Jenne | Update | PEM | PEM Model Started | Joe showed me what was what with adding
DAQ channels, and I have begun building a simulink |
|
|
11265
|
Fri May 1 13:22:08 2015 |
ericq | Update | DAQ | PEM Slow channels added to saved frames | Rana asked me to include add slow outputs
(OUT16) of the seismometer BLRMS channels
to the frames. |
|
|
11266
|
Fri May 1 16:42:42 2015 |
rana | Update | DAQ | PEM Slow channels added to saved frames | Still processing, but I think it should
work fine once we have a day of data. Until
then, here's the summary pages so far, |
|
|
1987
|
Tue Sep 15 15:46:05 2009 |
steve | Update | PEM | PEM and VAC | FSS_RMTEMP is moving up and daily
fluctuations are less . 120 and
16 days plots are below. |
|
|
1615
|
Thu May 21 12:58:32 2009 |
rob | Configuration | ALARM | PEM count-half disabled | I've disabled the alarm for PEM_count_half,
using the mask in the 40m.alhConfig file.
We can't do anything about it, and it's just |
|
|
6935
|
Sat Jul 7 16:34:41 2012 |
Masha | Update | PEM | PEM no longer freaking out (as much). | Hi everybody,
Sorry for flooding the ELOG about
the PEM channels. Today I |
|
|
6936
|
Sat Jul 7 17:28:11 2012 |
Masha | Update | PEM | PEM no longer freaking out (as much). |
|
|
|
303
|
Fri Feb 8 17:55:53 2008 |
josh | Configuration | PEM | PEM-AS_MIC now in PSL enclosure | I have moved the microphone to the PSL enclosure,
hanging near the south (Y) side from a support
rod for the overhanging storage area so that |
|
|
298
|
Tue Feb 5 17:39:05 2008 |
jweiner | Configuration | PEM | PEM-AS_MIC taken down from AS table, will put in PSL enclosure soon | I took down the microphone that Andrey hung
above the AS table his first week in lab.
I want to hang the microphone above the PMC |
|
|
3449
|
Fri Aug 20 16:17:35 2010 |
steve | Update | PEM | PEM-count channels are not working | C1: PEM-count channels are dead since August
12, 2010 |
|
|
6468
|
Thu Mar 29 20:13:21 2012 |
jamie | Configuration | PEM | PEM_SLOW (i.e. seismic RMS) channels added to fb master | I've added the PEM_SLOW.ini file to the
fb master file, which should give us the
slow seismic RMS channels when the framebuilder |
|
|
6484
|
Wed Apr 4 13:25:29 2012 |
jamie | Configuration | PEM | PEM_SLOW (i.e. seismic RMS) channels aquiring |
|
|
|
10347
|
Thu Aug 7 14:50:43 2014 |
Harry | Update | General | PER Measurement | Purpose
I wanted to do a more robust measurement
of PER of PM fibers for FOL, so I thought |
|
|
8669
|
Tue Jun 4 10:44:13 2013 |
Steve | Update | endtable upgrade | PI pzt holders are ready | The PI pzt holders are back from the shop.
They are numbered 1, 2 & 3 and machined
to match. |
|
|
12964
|
Wed May 3 16:02:36 2017 |
Steve | Update | General | PI pzt inventory check | One is broken, two are ready to steer green
and 3 available in un known condition
|
|
|
12967
|
Wed May 3 16:47:45 2017 |
Koji | Update | General | PI pzt inventory check | I also have a functional one on my desk,
which has one of the wires repaired.
|
|
|
13793
|
Thu Apr 26 19:46:26 2018 |
rana | Update | PEM | PID Quixote | Increased
the Integral gain (from -1 to -4) on the
EX temperature controller. This didn't |
|
|
13803
|
Tue May 1 11:15:19 2018 |
Kira | Update | PEM | PID Quixote | I added an out of loop sensor to the can
by placing the lab temperature sensor inside
the can. I'm not sure which channel is |
|
|
3930
|
Tue Nov 16 09:02:54 2010 |
Aidan | Update | Green Locking | PID loop - calibration of SR620 output | [Aidan, Kiwamu]
Kiwamu and I roughly calibrated the
analogue output from the SR620 frequency |
|
|
10334
|
Tue Aug 5 19:20:05 2014 |
Akhil | Update | General | PID loop Design for beat note stabilization | Today I and EricQ went inside the
lab and set up the cables running from the
a DAC channel into PZT input so that |
|
|
10353
|
Fri Aug 8 14:42:41 2014 |
Akhil | Update | General | PID loop Design for beat note stabilization | The attached in a zip file are the
Simulink feedback loop models for the FOL
for both X and Y ends. The controller PID |
|
|
3932
|
Tue Nov 16 12:47:30 2010 |
Aidan | Update | Green Locking | PID loop but no green | The PID loop is ready to be run on the
green beat note but, since the tanks are
open, there is no green transmission from |
|
|
3934
|
Tue Nov 16 16:00:26 2010 |
Aidan | Update | Green Locking | PID loop but no green |
|
|
|
13887
|
Thu May 24 15:18:12 2018 |
Kira | Update | PEM | PID loop restarted | Rana said that it wasn't necessary
to gather more data on the temperature fluctuations
so I have reconnected the heater circuit |
|
|
11189
|
Wed Apr 1 11:42:30 2015 |
manasa | Update | Computer Scripts / Programs | PID script in python | Since none of us here are experts in pearl,
I have put together a python script
for a simple PID controller. This |
|
|
3908
|
Fri Nov 12 12:06:11 2010 |
Aidan | Configuration | Green Locking | PID script working - now it needs to be tuned | I've set up a PID script that senses
the EX-PSL Green Beat note (from the frequency
counter) and actuates on the temperature |
|
|
13718
|
Thu Mar 29 17:14:42 2018 |
Kira | Update | PEM | PID test | [Kira, Gautam]
We closed the loop today and implemented
the PID script. I have attached the StripTool |
|
|
13722
|
Fri Mar 30 06:16:45 2018 |
rana | Update | PEM | PID test | Can't really figure out what this plot
means. We need to see the sensor (in units
of deg C) and the control signal (in heating |
|
|
13723
|
Fri Mar 30 16:10:46 2018 |
Kira | Update | PEM | PID test | I created two new channels today, C1:PEM-SEIS_EX_TEMP_MON_CELCIUS,
which turns the output voltage signal into
degrees C, and C1:PEM-SEIS_EX_TEMP_CTRL_WATTS, |
|
|
13726
|
Wed Apr 4 16:23:10 2018 |
Kira | Update | PEM | PID test | I did a step response for the loop from
35 degrees to 40 degrees. The PID is not
properly tuned, so the signal oscillates. |
|
|
13618
|
Wed Feb 7 17:01:25 2018 |
gautam | Update | PEM | PID test plan | [kira,
gautam] |
|
|
13619
|
Wed Feb 7 19:14:19 2018 |
rana | Update | PEM | PID test plan |
The heater circuit should get its
own dedicated supply.
We do not
want to ever use the old Ref Cav heater for |
|
|
13624
|
Thu Feb 8 12:24:37 2018 |
Kira | Update | PEM | PID test plan | Some points before we can set up the can:
Cable length and type
For
the DAC, we can use the LEMO outputs and |
|
|
13626
|
Thu Feb 8 17:32:44 2018 |
Kira | Update | PEM | PID test plan | [Kira, Steve]
We set up a new rail for the Sorensens
(attachment 1) and placed one of them down |
|