Microstrip coupled high sensitivity sensor for water ethanol mixture characterization

Hafdi, Zakarya; Tao, Junwu; Chaabi, Abdelhafid

doi:10.1515/freq-2019-0226

Cited by 3 publications

(2 citation statements)

References 28 publications

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“…In this respect, electrical impedance spectroscopy (EIS)-based sensors [ 20 ] and split-ring resonators metamaterial structures provide interesting alternatives, which have already proven useful for the evaluation of ethanol concentration [ 21 , 22 , 23 , 24 ] and are suitable for integration in microfluidic platforms [ 25 , 26 , 27 , 28 ]. However, few works have reported miniaturized EIS sensors with interdigitated (ID) electrodes and without any functionalization for ethanol sensing in liquid solutions.…”

Section: Introductionmentioning

confidence: 99%

Miniaturized Sensors for Detection of Ethanol in Water Based on Electrical Impedance Spectroscopy and Resonant Perturbation Method—A Comparative Study

Leo

Monteduro

Rizzato

et al. 2022

Sensors

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The development of highly sensitive, portable and low-cost sensors for the evaluation of ethanol content in liquid is particularly important in several monitoring processes, from the food industry to the pharmaceutical industry. In this respect, we report the optimization of two sensing approaches based on electrical impedance spectroscopy (EIS) and complementary double split ring resonators (CDSRRs) for the detection of ethanol in water. Miniaturized EIS sensors were realized with interdigitated electrodes, and the ethanol sensing was carried out in liquid solutions without any functionalization of the electrodes. Impedance fitting analysis, with an equivalent circuit over a frequency range from 100 Hz to 1 MHz, was performed to estimate the electric parameters, which allowed us to evaluate the amount of ethanol in water solutions. On the other hand, complementary double split ring resonators (CDSRRs) were optimized by adjusting the device geometry to achieve higher quality factors while operating at a low fundamental frequency despite the small size (useful for compact electronic packaging). Both sensors were found to be efficient for the detection of low amounts of ethanol in water, even in the presence of salts. In particular, EIS sensors proved to be effective in performing a broadband evaluation of ethanol concentration and are convenient when low cost is the priority. On the other end, the employment of split ring resonators allowed us to achieve a very low limit of detection of 0.2 v/v%, and provides specific advantages in the case of known environments where they can enable fast real-time single-frequency measurements.

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Section: Introductionmentioning

confidence: 99%

Miniaturized Sensors for Detection of Ethanol in Water Based on Electrical Impedance Spectroscopy and Resonant Perturbation Method—A Comparative Study

Leo

Monteduro

Rizzato

et al. 2022

Sensors

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show abstract

“…Microwave methods are commonly used to measure the dielectric properties of liquids. A resonator has been designed to characterize the dielectric properties of liquids [12,13]. It was used to determine the alcohol concentration in alcoholic liquids [14].…”

Section: Introductionmentioning

confidence: 99%

Classification of Liquids Using a Patch Antenna and Hierarchical Clustering Algorithms

Efeoglu

Tuna

2021

Mugla Journal of Science and Technology

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Detection of hazardous liquids used in explosive production is important in terms of public safety and health. Because many threats can be prevented by detecting these liquids at security controls points. As existing methods have some disadvantages in terms of accuracy, practicality or reliability, there is a demand for new methods for hazardous liquid detection. In this paper, a circular patch antenna for hazardous liquid detection was designed and by connecting to a vector network analyzer a group of measurements was made. Then, this dataset was used by hierarchical clustering algorithms employed in this study to detect hazardous liquids. The results show that high classification accuracy can be achieved when Ward linkage method is preferred.

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Real-Time Measurement of Liquid Permittivity Through Label-Free Meandered Microwave Sensor

Kiani

Rezaei

Fakhr

2023

IETE Journal of Research

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Microstrip coupled high sensitivity sensor for water ethanol mixture characterization

Cited by 3 publications

References 28 publications

Miniaturized Sensors for Detection of Ethanol in Water Based on Electrical Impedance Spectroscopy and Resonant Perturbation Method—A Comparative Study

Miniaturized Sensors for Detection of Ethanol in Water Based on Electrical Impedance Spectroscopy and Resonant Perturbation Method—A Comparative Study

Classification of Liquids Using a Patch Antenna and Hierarchical Clustering Algorithms

Real-Time Measurement of Liquid Permittivity Through Label-Free Meandered Microwave Sensor

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