Results 11 to 20 of about 10,181 (286)
Differential Permittivity Sensor Using Microstrip Terminated Cross-Shaped Resonator Structure for Material Characterization [PDF]
IEEE Access, 2019 A differential planar microwave resonator permittivity sensor for material characterization is proposed in this paper. The sensor is based on asymmetric terminated cross-shaped resonator (TCSR) to provide multi-band notch frequency characteristics ...
Chi-Hou Chio +5 more
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Low-Cost Oil Quality Sensor Based on Changes in Complex Permittivity [PDF]
Sensors, 2011 Real time oil quality monitoring techniques help to protect important industry assets, minimize downtime and reduce maintenance costs. The measurement of a lubricant’s complex permittivity is an effective indicator of the oil degradation process and it can be useful in condition based maintenance (CBM) to select the most adequate oil replacement ...
Angel Torres Pérez, Mark Hadfield
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A Low-cost and Accurate Microwave Sensor System for Permittivity Characterization
IEEE Sensors Journal, 2023 <p>A novel low-cost microwave sensor system is proposed for accurate sensing of the real relative permittivity of materials under test (MUT). The proposed solution eliminates the need for using advanced measurement devices such as the vector network analyzer (VNA) for sensor characterization.
Alireza Pourafzal +3 more
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Microwave Planar Sensor for Permittivity Determination of Dielectric Materials [PDF]
Indonesian Journal of Electrical Engineering and Computer Science, 2018 <p>This paper presents a single port rectangular ring resonator sensor for material characterizations. The proposed sensor is designed at operating resonance frequency of 4 GHz. The sensor consists of micro-strip transmission line and ring resonator with applying the enhancement method to the coupling gaps.
Rammah A. Alahnomi +4 more
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A FDR Sensor for Measuring Complex Soil Dielectric Permittivity in the 10–500 MHz Frequency Range
Sensors, 2010 Mechanical details as well as electrical models of FDR (frequency domain reflectometry) sensors for the measurement of the complex dielectric permittivity of porous materials are presented.
Wojciech Skierucha, Andrzej Wilczek
doaj +3 more sources
Engineering Science and Technology, an International JournalThis article proposed a labyrinth shape circular split ring resonator (LC-SRR) based microwave sensor for material permittivity characterization at L to S-band applications.
Abu Hanif +7 more
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Engineering Science and Technology, an International JournalThis paper proposed a novel design of planar microwave sensor aimed at distinguishing and analyzing the permittivity properties of regular solid materials with high sensitivity for C and X band applications.
Mohammad Lutful Hakim +5 more
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A New Planar Microwave Sensor for Building Materials Complex Permittivity Characterization
Sensors, 2020 A new microwave sensor is proposed to characterize the complex relative permittivity of building non-magnetic materials and used in the characterization of three concrete samples.
João G. D. Oliveira +4 more
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Permittivity measurement of sand and clay soil with a capacitive sensor [PDF]
, 2012 The determination of permittivity of sand and clay soil over a wide frequency band can be useful in several applications. Fringing Capacitive sensors can be used to measure the real and imaginary part of the permittivity of materials in the RF and microwave frequency bands.
S. Ferraris, SAVI, Patrizia
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Three-Port Lorentz Resonance Based Permittivity Sensor and Microwave Comparator [PDF]
, 2021 This paper presents for the first time a compact three-port Lorentz resonance-based microstrip sensor for permittivity and moisture sensing, as well as refractive index comparison. The proposed sensor is verified by simulations and experiments.
Omar Siddiqui +13 more
core +1 more source