Results 11 to 20 of about 72,738 (296)
Sensors, 2020 Medical devices making use of radio frequency (RF) and microwave (MW) fields have been studied as alternatives to existing diagnostic and therapeutic modalities since they offer several advantages.
Julian Bonello +4 more
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Advanced 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 +1 more source
Electrical characteristics of pure and contaminated latex serum [PDF]
Songklanakarin Journal of Science and Technology (SJST), 2018 This paper presents electrical characteristics of pure latex serum and latex serum contaminated with cassava and calcium carbonate (CaCo3). The pure serum sample was prepared by centrifuging field latex samples where the contaminated samples were ...
Huda Kosumphan +2 more
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Amplitude-only measurements of a dual open ended coaxial sensor system for determination of complex permittivity of materials [PDF]
, 2013 This paper describes a novel permittivity measurement technique using dual open ended coaxial sensors. The magnitudes of the reflection coefficient from two open ended coaxial sensors were used to determine complex reflection coefficients and ...
Abbas, Zulkifly +4 more
core +1 more source
An Open-Resonator Sensor for Measuring the Dielectric Properties of Antarctic Ice
Sensors, 2019 In this paper, the theory behind the design of a microwave sensor for the accurate measurement of firn complex permittivity is presented. This class of microwave sensors, based on the open-coaxial re-entrant cavity method, is specifically designed to ...
Roberto Olmi +3 more
doaj +1 more source
Microwave Complex Permittivity of Yttria-Stabilized Zirconia
IEEE Open Journal of Instrumentation and Measurement, 2023 The complex permittivity of 8-mol yttria-stabilized zirconia (8-YSZ) in powder and sintered (i.e., solid) forms were measured from 32 to 40 GHz using a circular waveguide probe.
Anna Case, Aaron Barvincak, Reza Zoughi
doaj +1 more source
Performance of Electrical Spectroscopy using a Resper Probe to Measure the Salinity and Water Content of Concrete or Terrestrial Soil [PDF]
, 2011 This paper discusses the performance of electrical spectroscopy using a RESPER probe to measure the salinity s and volumetric content {\theta}W of the water in concrete or terrestrial soil.
Settimi, A.
core +4 more sources
Measurement of Complex Permittivity in Free Space
Procedia Engineering, 2015 AbstractThe paper describes the measurement of complex permittivity in free space. It is an advanced non-contact method which is used to find the electromagnetic properties of materials. In this case it involves the materials which are used in aviation technology, especially for hardening the avionics against electromagnetic interference. A specialized
Skočík, Petr, Neumann, Petr
openaire +2 more sources
Dielectric Measurement of Agricultural Grain Moisture—Theory and Applications
Sensors, 2022 Moisture content is a critical variable for the harvesting, processing, storing and marketing of cereal grains, oilseeds and legumes. Efficient and accurate determination of grain moisture content even with advanced nondestructive techniques, remains a ...
Scott B. Jones, Wenyi Sheng, Dani Or
doaj +1 more source
IEEE Access, 2020 This paper describes a novel method of characterizing complex permittivity using a complementary frequency selective surface (CFSS). The CFSS provides a passband behavior and the change in the passband when a material under test (MUT) is placed adjacent ...
Chih-Kuo Lee +5 more
doaj +1 more source