Results 1 to 10 of about 6,159 (262)

A Flow-Through Microfluidic Relative Permittivity Sensor [PDF]

Micromachines, 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, Remco Sanders, Remco Wiegerink, Joost Lötters   +3 more
doaj   +10 more sources

Meander-Line Slot-Loaded High-Sensitivity Microstrip Patch Sensor Antenna for Relative Permittivity Measurement [PDF]

Sensors, 2019
A high-sensitivity microstrip patch sensor antenna (MPSA) loaded with a meander-line slot (MLS) is proposed for the measurement of relative permittivity. The proposed MPSA was designed by etching the MLS along the radiating edge of the patch antenna, and
Junho Yeo, Jong-Ig Lee
doaj   +4 more sources

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

Sensors, 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, Cunjun Ruan, Xingyun Zhang, Shahid Ullah, Ayesha Kosar Fahad, Wenlong He   +5 more
doaj   +4 more sources

Modeling and Relative Permittivity Modulation of Cu/PDMS Capacitive Flexible Sensor for Pressure Sensing

Sensors
This study aims to establish an equivalent parallel capacitance model for a copper/polydimethylsiloxane (Cu/PDMS) capacitive flexible pressure sensor and modulate its relative permittivity to optimize pressure sensing performance.
Xu Wang, Yuelong Zhang, Tian Zhang, Guanyu Fu, Yinlong Zhu, Ying Liu   +5 more
doaj   +4 more sources

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, José G. Duarte Junior, Erica N. M. G. Pinto, Valdemir P. Silva Neto, Adaildo G. D’Assunção   +4 more
doaj   +2 more sources

Measurement of Complex Permittivity for Rapid Detection of Liquid Concentration Using a Reusable Octagon-Shaped Resonator Sensor

Micromachines, 2023
Substrate-integrated waveguides (SIWs) are widely used in microwave systems owing to their low cost and ease of integration. In this study, an SIW-based resonator that reacts to the complex permittivity variation of solutions with dimensions of 79.2 mm ×
Chun-He Quan, Xiao-Yu Zhang, Jong-Chul Lee   +2 more
doaj   +2 more sources

Tapered CSRR-Based Sensor for Relative Permittivity Measurement With Application to Biomedical Microfluidic Sensing

IEEE Access
This paper proposes miniaturized, lightweight and ultrasensitive planar metamaterial sensor for relative permittivity measurement of nondispersive materials.
Salem A. Alotaibi, Yepu Cui, Manos M. Tentzeris   +2 more
doaj   +2 more sources

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

Sensors, 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, Yingping Zhou, Xiaosong Li, Zhongjun Ma, Lei Qiao, Chenghao Fu, Peidong Peng   +6 more
doaj   +2 more sources

Relative Permittivity Measurement of Microliter Volume Liquid Samples through Microwave Filters

Sensors, 2023
This paper proposes a concept of dielectric characterization of low-volume liquid samples using the coupling coefficient of filters. The concept is validated through a two-pole substrate integrated waveguide filter in which the liquid under test is ...
Azhar Yasin, Nayab Gogosh, Syed Irfan Sohail, Syed Muzahir Abbas, Muhammad Farhan Shafique, Abdelhady Mahmoud   +5 more
doaj   +2 more sources

The Impact of Atmospheric Parameters on the Dielectric Permittivity Values of SikaBlock^®-M150 and Other Rigid Polyurethane Foams Measured with a Capacitive One-Side Access Sensor

Sensors, 2022
A shortage of research on the impact of atmospheric parameters on the measured dielectric permittivity values of rigid polyurethane (PU) foams was identified.
Ilze Beverte, Sergejs Gaidukovs, Janis Andersons, Vilis Skruls   +3 more
doaj   +2 more sources