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A Flow-Through Microfluidic Relative Permittivity Sensor [PDF]

open access: goldMicromachines, 2020
In this paper, we present the design, simulation, fabrication and characterization of a microfluidic relative permittivity sensor in which the fluid flows through an interdigitated electrode structure.
Yaxiang Zeng   +3 more
doaj   +8 more sources

Influence of Solvent Relative Permittivity in Swab Spray Mass Spectrometry [PDF]

open access: goldMolecules
The influence of solvent properties on ion generation by swab spray ionization was investigated. The ability of a variety of solvents of different relative permittivity, surface tension, and viscosity to form a stable and reproducible electrospray was ...
Thomas Michael Muggli, Stefan Schürch
doaj   +5 more sources

Performance Evaluation of Volumetric Water Content and Relative Permittivity Models [PDF]

open access: goldThe Scientific World Journal, 2013
In recent years many models have been proposed for measuring soil water content (θ) based on the permittivity (ε) value. Permittivity is one of the properties used to determine θ in measurements using the electromagnetic method.
Muhammad Mukhlisin, Almushfi Saputra
doaj   +7 more sources

Meander-Line Slot-Loaded High-Sensitivity Microstrip Patch Sensor Antenna for Relative Permittivity Measurement [PDF]

open access: goldSensors, 2019
A high-sensitivity microstrip patch sensor antenna (MPSA) loaded with a meander-line slot (MLS) is proposed for the measurement of relative permittivity. The proposed MPSA was designed by etching the MLS along the radiating edge of the patch antenna, and
Junho Yeo, Jong-Ig Lee
doaj   +4 more sources

Seasonal Variation and Age-related Changes in the Relative Permittivity of Concrete Bridge Decks on Korea Expressways [PDF]

open access: goldInternational Journal of Concrete Structures and Materials, 2018
The purposes of this study were to investigate the seasonal variations in the relative permittivity of actual concrete bridge decks of various ages on Korea expressways, and to propose a practical way to calibrate two critical effects, to assess the ...
Ji-Young Rhee   +3 more
doaj   +2 more sources

Gaseous density calculation by means of relative permittivity measurement

open access: goldMeasurement: Sensors, 2021
This study presents a gaseous density calculation method on the basis of relative permittivity measurement. The relative permittivity of a gas sample is measured by using a cylindrical microwave cavity resonator in wide temperature and pressure ranges ...
Yuya Kano, Naoki Kuramoto
doaj   +2 more sources

A New Approach to Estimate the Complex Relative Permittivity of Materials Based on Free-Space Reflection Method

open access: diamondAdvanced Electromagnetics, 2020
A microwave free-space reflection method for determining the complex permittivity of planar materials is demonstrated. Improved the MUltiple SIgnal Classification (MUSIC) algorithm to estimate the complex relative permittivity of material based on the ...
L. C. Nguyen, M. C. Ho, T.-H. Le
doaj   +3 more sources

Evaluating the Relationship Between Relative Permittivity and Infill Density in 3D Printed Dielectric Slabs

open access: goldIEEE Access
This paper investigates the relationship between relative permittivity and infill density in 3D printed dielectric slabs. As the infill density of a 3D printed substrate is varied, its relative permittivity also varies which affects the performance of ...
Bibek Kattel   +2 more
doaj   +2 more sources

Complex Relative Permittivity Measurement Techniques [PDF]

open access: yesWarasan Witthayasat Lae Theknoloyi Mahawitthayalai Mahasarakham, 2019
This article presents a review of the techniques for measuring complex relative permittivity and also explains basic properties for understanding the principle of complex relative permittivity measurement.
Nawarat Piladaeng
doaj   +1 more source

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