View in EDS

Interdigitated capacitor based frequency splitting differential microwave sensor for complete dielectric characterization of organic liquids.

Saved in:
Bibliographic Details
Title: Interdigitated capacitor based frequency splitting differential microwave sensor for complete dielectric characterization of organic liquids.
Authors: Buragohain, Akash1,2 (AUTHOR) 87.akashburagohain@gmail.com, Shankar Das, Gouree1 (AUTHOR) gsdas@dibru.ac.in, Beria, Yatish1 (AUTHOR) yatish.beria.786@gmail.com, Kalita, Partha Protim1 (AUTHOR) kalitapartha14@gmail.com, Doloi, Trishna1 (AUTHOR) doloitrishna1@gmail.com, Al-Gburi, Ahmed Jamal Abdullah3 (AUTHOR) ahmedjamal@utem.edu.my
Source: Sensors & Actuators A: Physical. Feb2025, Vol. 382, pN.PAG-N.PAG. 1p.
Subjects: Permittivity, Measurement errors, Distributed sensors, Electric fields, Resonators
Abstract: This work presents an interdigitated capacitor split ring resonator based frequency splitting differential microwave sensor for complete dielectric characterization of organic liquid samples over a wide permittivity range. The proposed sensor comprises of two identical resonators excited by a common feedline and to achieve differential sensing, one of the resonators is loaded with a sample while the other is taken as the reference. Unlike other split ring resonator sensors, the proposed sensor provides a distributed high concentration of electric field around its whole perimeter thereby increasing the sensitivity. The sensor is validated in both simulation and experimentation, and we have obtained a very high normalized sensitivity of 4.66 % for the widest range of dielectric constant 1–80.4, which is among the highest reported thus far. The sensor shows a maximum error of 3.82 % in determining the complex permittivity of unknown liquids which signifies its accuracy and applicability. The proposed sensor also possesses the additional advantage of differential sensing to minimize additional measurement errors. [Display omitted] • IDC-SRR based frequency splitting differential microwave sensor has been designed and fabricated. • Liquids with a wide range of dielectric constants have beenselected to validate the sensor's performance. • The sensor delivers the highest sensitivity over the range considered. • The sensor exhibits excellent temperature suppression ability and consistent sensing behavior. • The sensor successfully predicted the dielectric constant of unknown samples with high accuracy. [ABSTRACT FROM AUTHOR]
Copyright of Sensors & Actuators A: Physical is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
Description
Abstract:This work presents an interdigitated capacitor split ring resonator based frequency splitting differential microwave sensor for complete dielectric characterization of organic liquid samples over a wide permittivity range. The proposed sensor comprises of two identical resonators excited by a common feedline and to achieve differential sensing, one of the resonators is loaded with a sample while the other is taken as the reference. Unlike other split ring resonator sensors, the proposed sensor provides a distributed high concentration of electric field around its whole perimeter thereby increasing the sensitivity. The sensor is validated in both simulation and experimentation, and we have obtained a very high normalized sensitivity of 4.66 % for the widest range of dielectric constant 1–80.4, which is among the highest reported thus far. The sensor shows a maximum error of 3.82 % in determining the complex permittivity of unknown liquids which signifies its accuracy and applicability. The proposed sensor also possesses the additional advantage of differential sensing to minimize additional measurement errors. [Display omitted] • IDC-SRR based frequency splitting differential microwave sensor has been designed and fabricated. • Liquids with a wide range of dielectric constants have beenselected to validate the sensor's performance. • The sensor delivers the highest sensitivity over the range considered. • The sensor exhibits excellent temperature suppression ability and consistent sensing behavior. • The sensor successfully predicted the dielectric constant of unknown samples with high accuracy. [ABSTRACT FROM AUTHOR]
ISSN:09244247
DOI:10.1016/j.sna.2024.116127