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ID Date Author Type Categoryup Subject Text Attachments
  862   Tue Apr 14 12:19:57 2020 GabrieleGeneralMeasurementsS1600775 S1600784 S1600788 S16007912020-04-14


12:18 pm
in chamber

S1600775 in CR1
S1600784
in CR2
S1600788 in CR3
S1600791		   
  863   Tue Apr 14 18:35:59 2020 GabrieleGeneralMeasurementsS1600785 S16007892020-04-14


6:35pm in
chamber

S1600785 in CR1
S1600789
in CR2


6:40pm		   
  864   Thu Apr 16 14:23:11 2020 GabrieleGeneralMeasurementsS1600775 S1600784 S1600788 S16007912020-04-16


2:21 pm
in chamber

S1600775 in CR1
S1600784
in CR2
S1600788 in CR3
S1600791		   
  865   Fri Apr 17 10:18:17 2020 GabrieleGeneralMeasurementsS1600785 S16007892020-04-17


10:17am
in chamber

S1600785 in CR1
S1600789
in CR2


10:20am		   
  866   Thu Apr 23 14:02:25 2020 GabrieleGeneralMeasurementsS16007762020-04-23


2:00pm in
chamber

S1600776 in CR1


2:02pm
roughing pump on
2:12pm turbo		   
  867   Fri Apr 24 10:53:40 2020 GabrieleGeneralMeasurementsS1600801 S1600802 S1600803 S16008042020-04-24


10:51 am
in chamber

S1600801 in CR1
S1600802
in CR2
S1600803 in CR3
S1600804		   
  868   Mon Apr 27 10:26:29 2020 GabrieleGeneralMeasurementsS1600805 S1600806 S1600807 S16008082020-04-24


10:25 am
in chamber

S1600805 in CR1
S1600806
in CR2
S1600807 in CR3
S1600808		   
  869   Thu May 28 11:43:19 2020 GabrieleGeneralMeasurementsS1600801 S1600802 S1600803 S1600805 S16008062020-05-28


11:40 am
in chamber

S1600801 in CR1
S1600802
in CR2
S1600803 in CR3
S1600805		   
  870   Fri May 29 10:10:51 2020 GabrieleGeneralMeasurementsS16008062020-05-28


10:00 am
in chamber

S1600806 in CR1


10:05
am roughing pumps on
10:15 am		   
  871   Tue Jun 2 10:16:40 2020 GabrieleGeneralMeasurementsS1600801 S16008022020-06-02


10:15 am
in chamber

S1600801 in CR1
S1600802
in CR2


10:20 am		   
  872   Fri Jun 5 18:55:27 2020 GabrieleGeneralMeasurementsS1600803 GaAs2020-06-05


6:50 pm
in chamber

S1600803 in CR1
GaAs
in CR2


6:55 pm		   
  873   Tue Jun 9 11:04:28 2020 GabrieleGeneralMeasurementsGaAs S16008052020-06-09


11:00 am
in chamber

GaAs in CR1
S1600805
in CR2


11:04 am		   
  874   Mon Jun 15 19:32:31 2020 GabrieleGeneralMeasurementsS1600803 GaAs2020-06-15


7:32 pm
in chamber

S1600803 in CR1
GaAs
in CR2


7:36 pm		   
  875   Tue Jun 16 15:43:29 2020 GabrieleGeneralMeasurementsS16008052020-06-16


3:42 pm
in chamber

S1600805 in CR1


3:45
pm roughing pumps on
3:55 pm turbo		   
  876   Thu Jun 18 17:46:51 2020 GabrieleGeneralMeasurementsS16008062020-06-18


5:45 pm
in chamber

S1600806 in CR1


5:50
pm roughing pumps on
6:00 pm turbo		   
  877   Tue Jun 23 16:22:42 2020 GabrieleGeneralMeasurementsS16008062020-06-23


4:20 pm
in chamber

S1600806 in CR1


4:21
pm roughing pumps on
4:31 pm turbo		   
  878   Wed Jun 24 14:17:45 2020 GabrieleGeneralMeasurementsS1600805 S16008062020-06-24


2:26 pm
in chamber

S1600805 in CR1
S1600806
in CR1


2:27 pm		   
  879   Thu Jun 25 08:49:24 2020 GabrieleGeneralMeasurementsS1600803 S1600805 S16008062020-06-25


8:47 am
in chamber

S1600803 in CR1
S1600805
in CR2
S1600806 in CR3


8:49		   
  880   Wed Jul 1 13:43:53 2020 GabrieleGeneralMeasurementsS1600803 in2020-07-01


1:42 pm
in chamber

S1600803 in CR1


1:43
pm roughing pumps on
1:53 pm turbo		   
  881   Thu Jul 2 14:43:09 2020 GabrieleGeneralMeasurementsS1600794 S1600795 S1600796 S16007972020-07-02


2:41 pm
in chamber

S1600794 in CR1
S1600795
in CR2
S1600796 in CR3
S1600797		   
  882   Tue Jul 7 15:40:44 2020 GabrieleGeneralMeasurementsS1600809 S1600810 S160081 S16008122020-07-02


3:39 pm
in chamber

S1600809 in CR1
S1600810
in CR2
S1600811 in CR3
S1600812		   
  351   Thu Jun 22 13:16:37 2017 ZachElectronicsModelingBeginning with COMSOL2017-06-21


4:30 pm-
Installed COMSOL, began modeling current
ESD by creating parameters and the first		   
  352   Thu Jun 22 15:37:20 2017 ZachElectronicsModelingBeginning modeling2017-06-22


Created
the geometry of the ESD by creating blocks
and joining them with Unions. I then created		  E_Plot.png 
  353   Fri Jun 23 12:02:12 2017 ZachElectronicsModelingPlots2017-06-23


I created
plots of the E field and potential from my
rough model of the ESD. This model has 1mm		  Potential.pngE_w_Lines.pngMesh.png 
  356   Tue Jun 27 14:17:47 2017 ZachElectronicsModelingFurther plots and improving models2017-06-27


I built
a new model of the ESD to determine whether
or not the spikes in the electric field at		  E_field_corner.pngE_field_round.png 
  359   Thu Jun 29 16:40:41 2017 ZachElectronicsModelingAccurate model and force profile2017-06-29


I created
a much more accurate model of the current
ESD setup from the technical drawings. My		  Force.pnggeometry.pngMesh.png 
  360   Fri Jun 30 11:02:18 2017 ZachElectronicsModelingMatching Forces2017-06-30


I adjusted
the plot parameters slightly so that it only
showed the actual force profile on the sample		  ForceE.pngForceP.png 
  361   Fri Jun 30 16:27:56 2017 ZachElectronicsModelingDouble Checking Model2017-06-30


In order
to confirm the accuracy of my model I checked
some easily computable quantities between		   
  363   Wed Jul 5 12:01:51 2017 ZachElectronicsModelingForce plots-Correct plots, force issue2017-07-05


I sorted
out my mathematical lapse in logic and computed
the correct force profiles in the perpendicular		  Force_E2.pngForce_PE.png 
  364   Wed Jul 5 16:40:51 2017 ZachElectronicsModelingForce disparity-improvement2017-07-05


In order
to improve my data I shrunk the region of
the finer meshing slightly and made the mesh		  1ForceE2.png1ForcePE.png 
  365   Thu Jul 6 12:08:35 2017 ZachElectronicsModelingChecking physical parameters2017-07-06


I compared
the electric field and the polarization to
make sure that those calculations made sense.		  E_from_P.pngE_from_E.png 
  366   Thu Jul 6 12:48:54 2017 ZachElectronicsModelingResolving the factor of two2017-07-06

I resolved the factor
of two from Griffiths' discussion of
dipoles in non-uniform electric fields. The		   
  367   Wed Jul 12 15:08:59 2017 ZachElectronicsModelingModel of actuator and sample2017-07-12


I am attaching
the first fully functioning model of the
actuator and sample. I cleared both meshes		  Force_Model.mph 
  368   Fri Jul 14 16:43:24 2017 ZachElectronicsModelingForce profile matlab script2017-07-14


I have completed
a rough, but functioning script that calculates
the modal force profiles. The force values		  forces.mfaster.m 
  371   Thu Jul 20 11:37:01 2017 ZachElectronicsModelingMatlab Script2017-07-20


I believe
my MATLAB script successfully calculates
the force distribution into each of the modes		  forces.m 
  375   Mon Jul 24 09:13:45 2017 ZachElectronicsModelingParametric Sweep2017-07-24


I wrote
a MATLAB script that is capable of sweeping
parameters, the code is attached. The next		  gap_plot.jpgforcesweep.m 
  378   Tue Jul 25 13:38:30 2017 ZachElectronicsModelingParametric Sweep of ESD gap2017-07-25


I completed
a short sweep of the gap between the drive
and the sample, between .5 and 1 mm in .1		  modeplotESDgap.jpg 
  379   Wed Jul 26 09:27:40 2017 ZachElectronicsModelingSweeping the space between ESD and sample2017-07-26


I ran a
sweep of the gap between the ESD and the
sample, first from .5 mm to 1 mm. That sweep		  Gap_near_one.jpggap_sweep.jpgGap_near_one.jpg 
  381   Wed Jul 26 21:22:50 2017 ZachElectronicsModelingParametric Sweep Results2017-07-26


I resolved
the major bugs in the parametric sweep scripts
and ran low resolution sweeps of the gap		  ESD.armgap.jpgESD.sample.gap.jpg 
  382   Thu Jul 27 13:37:31 2017 ZachElectronicsModelingCorrected sample gap sweep2017-07-27


I resolved
a couple more data processing bugs and calculated
a sweep of the ESD-Sample gap from a distance		  Fine_sample_gap.jpgFine_sample_gap.jpgfine_arm_gap.jpgfine_arm_gap.jpg 
  383   Thu Jul 27 16:56:03 2017 ZachElectronicsModelingOffset Sweep2017-07-27


I ran a
low resolution sweep of the offset in the
arms of the ESD, the space between the end		  Offset.jpgOffset.jpg 
  386   Tue Aug 1 16:10:42 2017 ZachElectronicsModelingImproved Gap Sweep2017-08-01


I completed
an improved sweep of the gap between the
ESD arms. I resolved some code issues, since		  Better.jpgmode_14.jpgmode_19.jpgmode_25.jpg 
  388   Wed Aug 2 13:47:47 2017 ZachElectronicsModelingArm width Sweep2017-08-02


I ran a
sweep of the width of the ESD arms. There
appears to be a linear relationship across		  Arm_width_fine.jpgmode_25.jpg 
  389   Wed Aug 2 15:40:00 2017 ZachElectronicsModelingParameter diagramI am posting a diagram of the geometric
parameters that I swept. The only one not
included is the vertical space between the		  ESD_w_param.png 
  394   Mon Aug 7 13:19:48 2017 ZachElectronicsModelingNormalized data2017-08-07


I included
the modal mass factors in the code and renormalized
my data. The normalization has a noticeable		  Arm_gap.pdfArm_width.pdfOffset.pdfSample_Gap.pdf 
  398   Tue Aug 8 16:20:24 2017 ZachElectronicsModelingRotated ESD 2017-08-08


I rotated
the ESD and calculated it's modal projections
by rotating the data array that MATLAB extracts		  ESD.pdfRotated.pdfresonantmodes.pdf 
  399   Wed Aug 9 12:10:47 2017 ZachElectronicsModelingPreliminary improvement from ESD optimization2017-08-09


I created
a plot of the ratio of the force in the optimized
design to the force in the original design.		  Ratio.jpgRatio.jpgo_gap.jpgOriginal.jpgOptimized.jpg 
  400   Wed Aug 9 15:57:28 2017 ZachElectronicsModelingTriangular Geometry2017-08-09


I compared
the triangular geometry to the original geometry
and the excitation was only improved		  tratio.jpg 
  401   Wed Aug 9 17:07:57 2017 ZacharyElectronicsModelingOptimization Summary2017-08-09



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 ZachElectronicsModelingGeometry Ratios2017-08-10


The attached
plots compare the new and old geometries
with .5 mm and 1 mm sample gaps. They are		  Optimization_plot_lin.pdfOptimization_plot_log.pdf 
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