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Improvement of Flame Complex Permittivity Model Considering Positive Ions and Electrons
International Instrumentation and Measurement Technology Conference, 2022The complex permittivity of flame includes relative permittivity and conductivity, which is an important electrical characteristic parameter to reflect the information of combustion process. The complex permittivity of flame can be measured by electrical
Chao Wang +3 more
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IEEE Transactions on Geoscience and Remote Sensing, 2022
This is the first of two articles that present experimental spectra of six soil samples with varying clay contents ranging from 0 to 55% and organic carbon levels ranging from 0 to 3.9%, measured at a small step of moisture change at a temperature of 25 ...
P. Bobrov +3 more
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This is the first of two articles that present experimental spectra of six soil samples with varying clay contents ranging from 0 to 55% and organic carbon levels ranging from 0 to 3.9%, measured at a small step of moisture change at a temperature of 25 ...
P. Bobrov +3 more
semanticscholar +1 more source
Complex effective relative permittivity of soil samples from the taunus region (Germany)
Journal of Earth Science, 2010The most important parameter affecting ground-penetrating radar (GPR) measurements is the complex effective relative permittivity ɛr,eff* because it controls the propagation velocity and the reflection of GPR pulses. Knowing ɛr,eff* of soils passed through by electromagnetic waves increases accuracy in soil thickness and interface identification ...
Katja Lauer +3 more
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Materials Express, 2022
This study was aimed at investigating the effect of microstructural variations on relative complex permittivity and microwave absorption properties of recycled α-Fe2O3, following application of high-energy ball milling technique to modify particles into
E. Mensah +3 more
semanticscholar +1 more source
This study was aimed at investigating the effect of microstructural variations on relative complex permittivity and microwave absorption properties of recycled α-Fe2O3, following application of high-energy ball milling technique to modify particles into
E. Mensah +3 more
semanticscholar +1 more source
Coaxial resonant cavity for measuring complex permittivity of liquids
Frequenz, 2022In this letter, a new microwave sensor of the coaxial resonant cavity with a single-open-ended circuit loaded capacitor is proposed and used to detect the liquids’ complex permittivity. The improved cavity has a higher internal electric field and smaller
Yi Wang +3 more
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Complex Permittivity Measurement of Dielectric Substrate in Sub-THz Range
IEEE Transactions on Terahertz Science and Technology, 2021In this article, three frequency independent optical paths are designed and analyzed. A two-parabolic-mirror system and a four-parabolic-mirror system are studied and developed over 140–220 GHz to achieve precision complex permittivity measurements of a ...
Haotian Zhu, K. Wu
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arXiv.org
This paper presents a Time-Domain Transmissometry Soil Moisture Sensor (TDT-SMS) using a Dispersive Phase Shifter (DPS), consisting of an interdigital capacitor that is loaded with a stacked 4-turn Complementary Spiral Resonator (S4-CSR).
Rasool Keshavarz, Negin Shariati
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This paper presents a Time-Domain Transmissometry Soil Moisture Sensor (TDT-SMS) using a Dispersive Phase Shifter (DPS), consisting of an interdigital capacitor that is loaded with a stacked 4-turn Complementary Spiral Resonator (S4-CSR).
Rasool Keshavarz, Negin Shariati
semanticscholar +1 more source
, 2014 SPE Journal
Broadband dielectric dispersion measurements are attractive options for the assessment of water-filled porosity. Dielectric permittivity is influenced by salinity as well as other rock/fluid properties. However, the effect of salinity on Maxwell-Wagner
Z. Azizoglu, Z. Heidari
semanticscholar +1 more source
Broadband dielectric dispersion measurements are attractive options for the assessment of water-filled porosity. Dielectric permittivity is influenced by salinity as well as other rock/fluid properties. However, the effect of salinity on Maxwell-Wagner
Z. Azizoglu, Z. Heidari
semanticscholar +1 more source
1998 Symposium on Antenna Technology and Applied Electromagnetics, 1998
The measurement of complex permittivity of dielectric materials using coaxial line reflection methods at radio and microwave frequencies is of great interest. Peoples in basic and applied research areas as well as those in industry have an increasing requirement on the knowledge of the dielectric properties of materials.
F. Lan +2 more
openaire +3 more sources
The measurement of complex permittivity of dielectric materials using coaxial line reflection methods at radio and microwave frequencies is of great interest. Peoples in basic and applied research areas as well as those in industry have an increasing requirement on the knowledge of the dielectric properties of materials.
F. Lan +2 more
openaire +3 more sources