Results 31 to 40 of about 3,064,923 (268)
Development of the epoxy composite complex permittivity and its application in wind turbine blades [PDF]
, 2010 PhDOffshore wind farm structures may have the potential to affect marine navigation and communication systems by reflecting radar signals. With ever increasing size of wind turbines it is necessary to better understand the influence of radar signals on
Hu, Dawei
core +2 more sources
Low-cost oil quality sensor based on changes in complex permittivity. [PDF]
, 2011 Real time oil quality monitoring techniques help to protect important industry assets, minimize downtime and reduce maintenance costs. The measurement of a lubricant's complex permittivity is an effective indicator of the oil degradation process and it ...
Torres Perez, Angel; id_orcid +4 more
core +1 more source
Resonant coaxial SMA microwave permittivity sensor [PDF]
, 2020 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 ...
Milošević, Tomislav, Nešić, Dušan
core +1 more source
Sensors, 2022 This paper proposes a microwave sensor based on a high-sensitivity slot-loaded rectangular microstrip patch antenna (MPA) for measuring microliter-volume liquid chemicals with high relative permittivity and high loss tangent.
Junho Yeo, Jong-Ig Lee
doaj +1 more source
Dual Notch Microwave Sensors Based on Complementary Metamaterial Resonators
IEEE Access, 2019 In this paper, three dual notch microwave sensors are presented based on a microstrip transmission line and complementary metamaterial resonators. The main aim of this paper is to compare the constitutive parameters and sensitivity of all three dual ...
Tanveerul Haq +3 more
doaj +1 more source
A Microwave System for Relative Humidity Measurement [PDF]
, 1999 This paper deals with a microwave hygrometer that is based on the sensitivity of air permettivity to humidity. The hygrometer embeds a microwave generator which feeds two different channels.
A. Ferrero +5 more
core +1 more source
Quantifying Tree Hydration Using Electromagnetic Sensors
Horticulturae, 2020 An automated method of determining tree water status would enable tree fruit growers, foresters and arborists to reduce water consumption, reduce orchard maintenance costs and improve fruit quality.
Lance V. Stott +2 more
doaj +1 more source
Design of a High Sensitivity Microwave Sensor for Liquid Dielectric Constant Measurement
Sensors, 2020 In order to improve the sensitivity of liquid dielectric constant measurements, a liquid dielectric constant sensor based on a cubic container structure is proposed for the first time.
Honggang Hao +4 more
doaj +1 more source
A biologically-inspired approach to designing wireless sensor networks [PDF]
, 2005 In this paper, we contend that there are significant advantages in treating some classes of sensor networks as biological-like systems-- both in structural design characteristics and in operational processes.
Haddadi, H. +3 more
core +1 more source
Laser‐Induced Graphene from Waste Almond Shells
Advanced Functional Materials, EarlyView.Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova +9 more
wiley +1 more source