| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
382
|
Thu Jul 27 13:37:31 2017 |
Zach | Electronics | Modeling | Corrected sample gap sweep | 2017-07-27
I resolved
a couple more data processing bugs and calculated
a sweep of the ESD-Sample gap from a distance |
|
|
383
|
Thu Jul 27 16:56:03 2017 |
Zach | Electronics | Modeling | Offset Sweep | 2017-07-27
I ran a
low resolution sweep of the offset in the
arms of the ESD, the space between the end |
|
|
386
|
Tue Aug 1 16:10:42 2017 |
Zach | Electronics | Modeling | Improved Gap Sweep | 2017-08-01
I completed
an improved sweep of the gap between the
ESD arms. I resolved some code issues, since |
|
|
388
|
Wed Aug 2 13:47:47 2017 |
Zach | Electronics | Modeling | Arm width Sweep | 2017-08-02
I ran a
sweep of the width of the ESD arms. There
appears to be a linear relationship across |
|
|
389
|
Wed Aug 2 15:40:00 2017 |
Zach | Electronics | Modeling | Parameter diagram | I am posting a diagram of the geometric
parameters that I swept. The only one not
included is the vertical space between the |
|
|
394
|
Mon Aug 7 13:19:48 2017 |
Zach | Electronics | Modeling | Normalized data | 2017-08-07
I included
the modal mass factors in the code and renormalized
my data. The normalization has a noticeable |
|
|
398
|
Tue Aug 8 16:20:24 2017 |
Zach | Electronics | Modeling | Rotated ESD | 2017-08-08
I rotated
the ESD and calculated it's modal projections
by rotating the data array that MATLAB extracts |
|
|
399
|
Wed Aug 9 12:10:47 2017 |
Zach | Electronics | Modeling | Preliminary improvement from ESD optimization | 2017-08-09
I created
a plot of the ratio of the force in the optimized
design to the force in the original design. |
|
|
400
|
Wed Aug 9 15:57:28 2017 |
Zach | Electronics | Modeling | Triangular Geometry | 2017-08-09
I compared
the triangular geometry to the original geometry
and the excitation was only improved |
|
|
401
|
Wed Aug 9 17:07:57 2017 |
Zachary | Electronics | Modeling | Optimization Summary | 2017-08-09
p.p1 {margin: 0.0px 0.0px
0.0px 0.0px; font: 11.0px 'Helvetica Neue'; |
6x |
|
402
|
Thu Aug 10 10:47:54 2017 |
Zach | Electronics | Modeling | Geometry Ratios | 2017-08-10
The attached
plots compare the new and old geometries
with .5 mm and 1 mm sample gaps. They are |
|
|
407
|
Tue Aug 15 00:09:01 2017 |
Zach | Electronics | Modeling | ESD Improvements | 2017-08-14
I did my
best to increase the excitation in the higher
order modes. By making the ESD narrower (a |
10x |
|
409
|
Tue Aug 15 16:43:58 2017 |
Zach | Electronics | Modeling | Unchanged Mode Insight | 2017-08-15
It appears
to me that the major factor limiting the
improvement of the modes that either remain |
|
|
411
|
Wed Aug 16 10:04:24 2017 |
Zach | Electronics | Modeling | ESD along edge | 2017-08-16
I placed
created a very narrow ESD placed along the
edge of the sample. The thought behind this |
|
|
412
|
Wed Aug 16 11:36:13 2017 |
Zach | Electronics | Modeling | Middle ESD | 2017-08-16
I created
a model with a drive offset in the middle.
It improved one of the modes by a factor |
|
|
414
|
Wed Aug 16 16:05:09 2017 |
Zach | Electronics | Modeling | Two ESD First test | 2017-08-16
I created
a model with two ESD's, essentially a
combination of my previous two attempts with |
|
|
415
|
Thu Aug 17 14:19:04 2017 |
Zach | Electronics | Modeling | Two ESD Optimization | 2017-08-17
I ran a
sweep of the position of the middle ESD to
determine the optimal arrangement. From the |
17x |
|
416
|
Thu Aug 17 23:34:51 2017 |
Zach | Electronics | Modeling | Optimized ESD Drawing | 2017-08-17
I made a
drawing of the Optimal ESD design. The bottom
combs (right hand in the rotated image) are |
|
|
417
|
Fri Aug 18 10:50:53 2017 |
Zach | Electronics | Modeling | ESD's with positive voltage | 2017-08-18
With both
electrodes driven at a positive voltage,
the results are still an improvement over |
|
|
419
|
Fri Aug 18 14:15:47 2017 |
Zach | Electronics | Modeling | Same Voltage ESD Sweep | 2017-08-18
I ran a
sweep of the central position in the two
ESD setup with both set at the same voltage. |
|
|
420
|
Fri Aug 18 15:10:23 2017 |
Zach, Gabriele | Electronics | Modeling | ESD prototype | 2017-08-18
We created
a prototype of PCB for the ESD design. Unfortunately
the orientation of the two combs was flipped, |
|
|
421
|
Wed Aug 23 14:11:13 2017 |
Zach, Gabriele | Electronics | Measurements | Installing ESD Prototype | 2017-08-23
Installed
ESD Prototype design by taping it to the
older design, we then lowered the mount until |
|
|
456
|
Tue Jan 30 15:56:36 2018 |
Gabriele, Craig | Electronics | Configuration | Temporary data acqusition for PSL lab beat note and accelerometers | We set up the model x3tst to acquire at
65kHz four signals coming from the PSL lab:
X3:TST-BEAT_OUT_DQ: beat |
|
|
67
|
Thu Jul 28 13:58:48 2016 |
Alena, Gabriele | Clean | Daily Progress | The old chamber is now being cleaned and baked | Cleaned the chamber in the washing machine
at 40m and started 48 baking at 120 C |
|
|
86
|
Tue Aug 16 11:53:30 2016 |
Alena, Gabriele | Clean | Daily Progress | Clean room progress | Some progress on the cleam room: bar fixed
to the wall, some more structure built, filters
in place. We had to (literally) work around |
|
|
88
|
Wed Aug 17 16:41:05 2016 |
Gabriele, Alena | Clean | Daily Progress | Clean room construction progress | The clean room frame is built and secured
to the floor and wall. Panels are being installed
on the ceiling and back. Also, the optical |
|
|
89
|
Thu Aug 18 18:15:18 2016 |
Gabriele, Alena | Clean | Daily Progress | Clean room construction progress | Ceiling, back and side panels are installed.
The air filters have been cabled and connected
to the power supply. |
|
|
140
|
Thu Oct 20 14:38:24 2016 |
Gabriele | Clean | Daily Progress | Cleaning of S1600433 and S1600438 | Samples #433 (annealed and cleaned) and
#438 (as received from Mark Optics) are now
with GariLynn for deep cleaning. |
|
|
689
|
Mon May 13 18:37:47 2019 |
aaron | Clean | General | Clean room gear | Mon May 13 18:37:37 2019
Entered CRIME lab to borrow 4x
hair nets and face masks. Can you |
|
|
696
|
Mon May 20 10:35:45 2019 |
aaron | Clean | General | Clean room gear | Aaron,
There is a buy list of approved
clean room supplies posted here https://dcc.ligo.org/LIGO-E1300399. |
|