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  4. Modeling Dielectric Constant Variability in Aggregate Polymers from CV Measurements
 
conference paper

Modeling Dielectric Constant Variability in Aggregate Polymers from CV Measurements

Dos Santos, Rosane Moura  
•
Dehollain, Catherine  
•
Mattavelli, Marco  
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January 1, 2019
2019 Latin American Electron Devices Conference (Laedc)
Latin American Electron Devices Conference (LAEDC)

Recently a new technique based on capacitive sensing has been developed and used to estimate the amount of moisture in polymers by means of the deviation of the dielectric constant. This technique is expected to be used for in-line monitoring of aggregate polymers. Despite its interest for industry, only a few papers have been published on modeling these systems in which the material has a granularity in the mm range. In this paper the problem of variability of the dielectric constant extracted in aggregate polymers was addressed. It was demonstrated that, while keeping the same average density of the material, the orientation of the elementary rod may be critical. In particular, assuming that rods can have two orientations, below a given population, the variance of the dielectric constant induced by random arrangement of rods could exceed the change in the dielectric constant arising from the content of water. In addition, guidelines were proposed to estimate the confidence interval for these CV-based humidity sensors.

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Type
conference paper
DOI
10.1109/LAED.2019.8714730
Web of Science ID

WOS:000470767000022

Author(s)
Dos Santos, Rosane Moura  
Dehollain, Catherine  
Mattavelli, Marco  
Barrettino, Diego  
Sallese, Jean-Michel  
Date Issued

2019-01-01

Publisher

IEEE

Publisher place

New York

Published in
2019 Latin American Electron Devices Conference (Laedc)
ISBN of the book

978-1-7281-2216-8

Start page

100

End page

103

Subjects

Engineering, Electrical & Electronic

•

Engineering

•

polymer

•

capacitance

•

dielectric constant

•

variability

•

aggregate

•

moisture absorption

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
SCI-STI-MM  
SCI-STI-CD  
EDLAB  
Event nameEvent placeEvent date
Latin American Electron Devices Conference (LAEDC)

Armenia, Colombia

February 24-27, 2019

Available on Infoscience
June 24, 2019
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/158422
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