Results 11 to 20 of about 127,919 (291)
Low-Cost and Highly Sensitive Reflective-Mode Phase-Variation Sensor for Bacteria Detection
IEEE AccessThis paper presents a reflective-mode planar microwave biosensor based on phase-variation allowing for the detection of low bacteria concentration. The sensor is a one-port coplanar waveguide (CPW) structure implemented by means of a pair of weakly ...
Ilona Piekarz +8 more
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IEEE Sensors Journal, 2023 This article presents a low-cost and portable phase-variation planar microwave sensor operating in reflective mode, where the output variable, the phase of the reflection coefficient of the one-port sensing element, is retrieved by means of a distributed circuit based on a pair of rat-race hybrid couplers and the associated electronics. This includes a
Paris Velez +2 more
exaly +4 more sources
Reflective-Mode Phase-Variation Submersible Sensor for Liquid Characterization
IEEE Transactions on Instrumentation and Measurement, 2023 A one-port reflective-mode microwave submersible sensor based on an open-ended step-impedance microstrip line configuration, operating at a single frequency, useful for the dielectric characterization of liquids and the measurement of liquid composition in binary mixtures, is proposed in this article.
Lijuan Su +5 more
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Sensors, 2020 In this paper, reflective-mode phase-variation sensors based on open-ended stepped-impedance transmission lines with optimized sensitivity for their use as defect detectors and dielectric constant sensors are reported.
Pau Casacuberta +5 more
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Techniques to Improve the Performance of Planar Microwave Sensors: A Review and Recent Developments
Sensors, 2022 Planar microwave sensors have become increasing developed in recent decades, especially in material characterization (solid/liquid) as they provide regions highly sensitive to the surrounding medium.
Mohammad Abdolrazzaghi +2 more
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A Reflective-Mode Phase-Variation Displacement Sensor
IEEE Access, 2020 In this paper, a displacement sensor based on an open-ended step-impedance transmission line is reported. The sensor operates in reflection, and the output variable is the phase of the reflection coefficient. The static part of the sensor is the step-impedance transmission line, where the open-ended line section is the sensitive part (sensing line ...
Jonathan Muñoz-Enano +4 more
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Results in Physics, 2022 Thin films of V2O5 are promising materials for applications in chromogenic devices, such as gas sensors and contactless optical thermal sensors. Therefore, controlling the formation of the various phases of V2O5 is important.
S. Tipawan Khlayboonme
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Sensors, 2020 Flow measurement in gas-liquid two-phase flow is always a challenging work, because of the non-uniform phase distribution, severe slippage effect between phases, and different flow structures.
Dayang Wang +3 more
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Advances in fiber optic sensors for soil moisture monitoring: A review
Results in Optics, 2022 Real time measurements of soil water content play a critical role in many fields of science as agronomy, geology, engineering, and hydrology. In the last years, agriculture has become one of the most important application fields of soil water sensors ...
Marco Leone
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Airborne measurements in different clouds [PDF]
INCAS Bulletin, 2021 The aim of this paper is to analyze different aspects of microphysical properties of mixed phase clouds, considering also the processes that are contributing to their formation.
Andreea CALCAN +3 more
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