Results 31 to 40 of about 19,521 (290)

Broadband Tissue Mimicking Phantoms and a Patch Resonator for Evaluating Noninvasive Monitoring of Blood Glucose Levels [PDF]

, 2014
(c) 2014 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or ...
Yilmaz, T, Hao, Y, Foster, R
core   +1 more source

Sensitivity enhancement of nonlinear waveguide sensors with conducting graphene layer: TE mode

Photonic Sensors, 2017
We propose a three-layer waveguide sensor. The proposed sensor consists of a graphene thin layer with constant conductivity at the interface between air and dielectric media with thickness d sitting above a nonlinear layer.
Hala J. El-Khozondar, Mohammed M. Shabat, Rana Khlifa   +2 more
doaj   +1 more source

Multipurpose chemical liquid sensing applications by microwave approach.

PLoS ONE, 2020
In this work, a novel sensor based on printed circuit board (PCB) microstrip rectangular patch antenna is proposed to detect different ratios of ethanol alcohol in wines and isopropyl alcohol in disinfectants.
Ayşegül Karatepe, Oğuzhan Akgöl, Yadgar I Abdulkarim, Yadgar I Abdulkarim, Şekip Dalgac, Fahmi F Muhammadsharif, Halgurd N Awl, Lianwen Deng, Emin Ünal, Muharrem Karaaslan, Luo Heng, Shengxiang Huang   +11 more
doaj   +1 more source

DESIGN AND DEVELOPMENT OF A NOVEL MICROWAVE SENSOR FOR BIOCHEMICAL DETECTION [PDF]

Proceedings on Engineering Sciences
A non-invasive microwave sensor with a Square Split Ring Resonator (S-SRR) for sensing applications is proposed in this paper. With the rapid advancement of sensing systems and emerging technologies, there is a high demand for efficient and compact ...
G. Challa Ram , S. Hanumantha Rao , G. R. L. V. N. Srinivasa Raju , D. Ramesh Varma , M. Venkata Subbarao , D. Girish Kumar , S. Tripura Siva Satya Tejaswini , P. Sai Naga Sreya   +7 more
doaj   +1 more source

Enhanced Sensitivity of Surface Plasmon Resonance Sensor Based on Bilayers of Silver-Barium Titanate [PDF]

Журнал нано- та електронної фізики, 2016
Surface plasmon resonance (SPR) sensors have been widely adopted with various fields such as physics, chemistry, biology and biochemistry. SPR sensor has many advantages like the less number of sensing samples required, freedom of electromagnetic ...
S. Fouad, Naseer Sabri, Z.A.Z. Jamal, P. Poopalan   +3 more
doaj   +1 more source

Development and Application of Dual-Polarization Antenna for Dielectric Logging Sensor

Sensors, 2022
Because the dielectric constant of water is greater than that of oil and gas, dielectric logging sensors can effectively distinguish oil and gas reservoirs from water layers by measuring the dielectric parameters of formations.
Chen Li, Shaogui Deng, Zhiqiang Li, Jian Wu, Baoyin Lu, Jutao Yang   +5 more
doaj   +1 more source

Radiowave technology of resonant gas-sensor microwave telemetry

Российский технологический журнал, 2021
The possibility of using microstrip reflector microwave resonators in solving problems of resonant gas-sensor telemetry on layered dielectric substrates with gas-sensitive sputtering was investigated.
M. S. Kostin, A. D. Yarlykov
doaj   +1 more source

Modified planar sensor for measuring dielectric constant of liquid materials

Electronics Letters, 2017
A planar U‐shaped resonator for measuring relative permittivity of the liquid mediums is developed. To improve the sensitivity of the proposed sensor, gap sections, coupled lines and central ring resonators (RRs) are used to enhance electric fields interact with liquid under test (LUT).
M. Karami, P. Rezaei, S. Kiani, R.A. Sadeghzadeh   +3 more
openaire   +1 more source

Influence of MnO2 Nanoparticles Addition on Structural, Optical and Dielectric Characteristics of PVA/PVP for Pressure Sensors

Фізика і хімія твердого тіла, 2022
Films of PVA/PVP/MnO2 nanostructures were fabricated for pressure sensors fields with lightweight, flexible and low cost compare with other sensors. The structure, dielectric and optical characteristics of PVA/PVP/MnO2 nanostructures have been studied ...
Alaa J. Kadham Algidsawi, Ahmed Hashim, Aseel Hadi, Majeed Ali Habeeb, Hussein Hakim Abed   +4 more
doaj   +1 more source

Simplified Approach to Detect Dielectric Constant Using a Low-Cost Microfluidic Quarter Mode Substrate-Integrated Waveguide

Sensors, 2020
Liquid materials’ characterization using commercial probes and radio frequency techniques is expensive and complex. This study proposes a compact and cost-effective radio frequency sensor system to measure the dielectric constant using a three-material ...
Ahmed Salim, Muhammad Usman Memon, Heijun Jeong, Sungjoon Lim   +3 more
doaj   +1 more source