A Submersible Printed Sensor Based on a Monopole-Coupled Split Ring Resonator for Permittivity Characterization
| Autor: | Erick Reyes-Vera, G. Acevedo-Osorio, David E. Senior, Mauricio Arias-Correa |
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| Rok vydání: | 2019 |
| Předmět: |
Permittivity
Sensing applications Materials science Permittivity measurements Microwave sensor Experimental procedure Microwave sensors Calibration curve Optical resonators Acoustics Dielectric Material characterizations Dielectric characterization lcsh:Chemical technology metamaterial Biochemistry Article Analytical Chemistry Split-ring resonator Dielectric materials Submersibles Resonator Metamaterial Split ring resonator lcsh:TP1-1185 Transmission coefficient Electrical and Electronic Engineering Chemical contamination Instrumentation Ring gages Mathematical equations Dielectric permittivities Transmission coefficients Monopole antennas Permittivity measurement microwave sensor Liquids material characterization permittivity measurements Atomic and Molecular Physics and Optics Microwave resonators Dielectric properties of liquids Metamaterials split ring resonator Q factor measurement Material characterization Microwave |
| Zdroj: | Sensors (Basel, Switzerland) Sensors, Vol 19, Iss 8, p 1936 (2019) Scopus 57195722871 Scopus 57204207314 Scopus 57200341418 Scopus 36698427600 Repositorio Institucional UTB Universidad Tecnológica de Bolívar instacron:Universidad Tecnológica de Bolívar Sensors Volume 19 Issue 8 |
| ISSN: | 1424-8220 |
| Popis: | This work presents a non-invasive, reusable and submersible permittivity sensor that uses a microwave technique for the dielectric characterization of liquid materials. The proposed device consists of a compact split ring resonator excited by two integrated monopole antennas. The sensing principle is based on the notch introduced by the resonators in the transmission coefficient, which is affected due to the introduction of the sensor in a new liquid material. Then, a frequency shift of the notch and the Q-factor of the proposed sensor are related with the changes in the surrounding medium. By means of a particular experimental procedure, commercial liquids are employed to obtain the calibration curve. Thus, a mathematical equation is obtained to extract the dielectric permittivity of liquid materials with unknown dielectric properties. A good match between simulated and experimental results is obtained, as well as a high Q-factor, compact size, good sensitivity and high repeatability for use in sensing applications. Sensors like the one here presented could lead to promising solutions for characterizing materials, particularly in determining material properties and quality in the food industry, bio-sensing and other applications. © 2019 by the authors. Licensee MDPI, Basel, Switzerland. Instituto Tecnológico de Costa Rica: P15106, P13252, Universidad Tecnológica de Pereira |
| Databáze: | OpenAIRE |
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