Results 1 to 10 of about 7,922 (161)

A Flow-Through Microfluidic Relative Permittivity Sensor [PDF]

open access: yesMicromachines, 2020
In this paper, we present the design, simulation, fabrication and characterization of a microfluidic relative permittivity sensor in which the fluid flows through an interdigitated electrode structure.
Yaxiang Zeng   +3 more
doaj   +8 more sources

A New Chipless RFID Permittivity Sensor System [PDF]

open access: yesIEEE Access, 2021
Permittivity sensing is commonly utilized in multiple fields for various applications. In this study, an enhanced RFID (Radio Frequency Identification) permittivity sensor system is designed. Additionally, we investigated the signal processing procedures
Yang Wang   +4 more
doaj   +2 more sources

Sensitivity Analysis of a Portable Wireless PCB-MEMS Permittivity Sensor Node for Non-Invasive Liquid Recognition [PDF]

open access: yesMicromachines, 2021
Dielectric characteristics are useful to determine crucial properties of liquids and to differentiate between liquid samples with similar physical characteristics.
Javier Meléndez-Campos   +2 more
doaj   +2 more sources

Extremely Sensitive Microwave Sensor for Evaluation of Dielectric Characteristics of Low-Permittivity Materials

open access: yesSensors, 2020
In this paper, an extremely sensitive microwave sensor is designed based on a complementary symmetric S shaped resonator (CSSSR) to evaluate dielectric characteristics of low-permittivity material.
Tanveerul Haq   +5 more
doaj   +3 more sources

High-Sensitivity Differential Sensor for Characterizing Complex Permittivity of Liquids Based on LC Resonators

open access: yesSensors
This paper proposes a high-sensitivity microstrip differential sensor for measuring the complex permittivity of liquids. The prototype of the differential sensor was formed by cascading two LC resonators on a microstrip transmission line based on stepped
Zhongjun Li   +5 more
doaj   +3 more sources

Complex Permittivity Characterization of Liquid Samples Based on a Split Ring Resonator (SRR)

open access: yesSensors, 2021
A complex permittivity characterization method for liquid samples has been proposed. The measurement is carried out based on a self-designed microwave sensor with a split ring resonator (SRR), the unload resonant frequency of which is 5.05 GHz.
Jialu Ma   +5 more
doaj   +1 more source

Design of a Planar Sensor Based on Split-Ring Resonators for Non-Invasive Permittivity Measurement

open access: yesSensors, 2023
The permittivity of a material is an important parameter to characterize the degree of polarization of a material and identify components and impurities. This paper presents a non-invasive measurement technique to characterize materials in terms of their
Mohammad Alibakhshikenari   +10 more
doaj   +1 more source

Microfluidic Microwave Sensor Loaded with Star-Slotted Patch for Edible Oil Quality Inspection

open access: yesSensors, 2022
In this paper, we present a new microfluidic microwave sensor loaded with a star-slotted patch for detecting the quality of edible oil. The relative dielectric permittivity and the quality of edible oil will change after being heated at a high ...
Xueyun Han   +6 more
doaj   +1 more source

Resonant coaxial SMA microwave permittivity sensor [PDF]

open access: yesJournal of Electrical Engineering, 2020
Abstract Resonant coaxial SMA microwave permittivity sensor is introduced. It is constructed using only commercially available SMA connectors. The sensor is tested in two different frequency ranges for two different dielectric constant ranges, from 1 to 10 and from 10 to 80.
Nešić, Dušan, Milošević, Tomislav
openaire   +2 more sources

Application of In-Situ and Soft-Sensors for Estimation of Recombinant P. pastoris GS115 Biomass Concentration: A Case Analysis of HBcAg (Mut+) and HBsAg (MutS) Production Processes under Varying Conditions

open access: yesSensors, 2021
Microbial biomass concentration is a key bioprocess parameter, estimated using various labor, operator and process cross-sensitive techniques, analyzed in a broad context and therefore the subject of correct interpretation.
Oskars Grigs   +2 more
doaj   +1 more source

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