Results 1 to 10 of about 113,538 (326)

A Flow-Through Microfluidic Relative Permittivity Sensor [PDF]

open access: yesMicromachines, 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   +7 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   +4 more sources

Measurement of relative permittivity of LTCC ceramic at different temperatures [PDF]

open access: goldAIP Advances, 2014
Devices based on LTCC (low-temperature co-fired ceramic) technology are more widely applied in high temperature environments, and the temperature-dependent properties of the LTCC material play an important role in measurements of the characteristics of ...
Qiulin Tan   +8 more
doaj   +5 more sources

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

open access: yesMolecules
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   +4 more sources

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

open access: yesSensors, 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   +2 more sources

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

open access: yesThe 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   +2 more sources

Electrical properties of mung beans (Vigna Radiata L.) [PDF]

open access: yesJournal on Processing and Energy in Agriculture, 2021
This paper contains the results of measuring the electrical properties of mung beans (Vigna radiata L.) set. The conductivity and relative permittivity are the main parameters of dielectric material electrical properties.
Novák Ján   +2 more
doaj   +1 more source

A New Chipless RFID Permittivity Sensor System

open access: yesIEEE Access, 2021
Permittivity sensing is commonly utilized in multiple fields for various applications. In this study, an enhanced RFID (Radio Frequency Identification) permittivity sensor system is designed. Additionally, we investigated the signal processing procedures
Yang Wang   +4 more
doaj   +1 more source

COMPARISON OF THE IMPULSE AND M-SEQUENCE UWB RADAR SYSTEMS FOR THE ESTIMATION OF THE WALL THICKNESS [PDF]

open access: yesActa Electrotechnica et Informatica, 2019
In our laboratory, we developed a simple estimation of the wall thickness by the UWB (Ultra Wide-Band) radar system. The described technique measures the wall thickness in the two steps. The first step is a measurement of the wall relative permittivity.
Miroslav REPKO, Ján GAMEC
doaj   +1 more source

A Novel Approach for Permittivity Estimation of Lunar Regolith Using the Lunar Penetrating Radar Onboard Chang’E-4 Rover

open access: yesRemote Sensing, 2021
Accurate relative permittivity is essential to the further analysis of lunar regolith. The traditional hyperbola fitting method for the relative permittivity estimation using the lunar penetrating radar generally ignored the effect of the position and ...
Ruigang Wang   +8 more
doaj   +1 more source

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