Results 21 to 30 of about 1,832,940 (315)

Measurement of Dielectric Liquid Electrification in the Shuttle System with Two Parallel Electrodes

open access: yesEnergies, 2021
In this paper, a device with swinging plate electrodes has been proposed to measure contact electrification of a liquid sample. The proposed structure is composed of two parallel metallic plates immersed in a dielectric liquid.
Dariusz Zmarzły, Paweł Frącz
doaj   +1 more source

Alternate current measurement [PDF]

open access: yesProceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character, 1908
Abstract The lack of precision of measurements with alternate currents, as compared with those using direct currents, is mainly due to the relative sensitiveness of the instruments available for such tests. The fact that the turning moment acting on the moving system depends in one case on the square of the current and in the other on
openaire   +2 more sources

Current-Distribution Measurement in Polymer Electrolyte Water Electrolysis Equipment and Polymer Electrolyte Fuel Cell Using NMR Sensor

open access: yesJournal of Thermal Science and Technology, 2009
In a polymer electrolyte fuel cell (PEFC), the current density through the polymer electrolyte membrane (PEM) is distributed along the electrode on the membrane electrode assembly (MEA).
Yasuo YOKOUCHI   +3 more
doaj   +1 more source

Accurate Parameters Identification of a Supercapacitor Three-Branch Model

open access: yesIEEE Access, 2023
Supercapacitors are becoming increasingly important storage system components. To effectively control their terminal voltage, even in real time, numerous circuit models capable of faithfully simulating their behavior in energy systems and various ...
Mauro Zucca   +3 more
doaj   +1 more source

Measurement of Coastal Currents

open access: yesCoastal Engineering 1968, 1968
Getting a drift buoy into and over the surf zone in rough weather has always been a problem. A cheap, cold propellant rocket launcher using either compressed air from aqua-lung bottles or liquid carbon dioxide is admirably suited for hurling drift bottles to ranges of over 1,000 feet.
J.M. Zeigler, H.J. Tasha
openaire   +2 more sources

Magnetically-coupled Current Sensor Using An Integrated Coil And A Cmos Split-drain Transistor

open access: yesEletrônica de Potência, 2006
An integrated current sensing circuit intended for Smart-Power and embedded applications featuring galvanic isolation is implemented. It is based on magnetic detection using the CMOS compatible Split- Drain transistor (MAGFET) that provides a very ...
Fernando C. Castaldo   +1 more
doaj   +1 more source

Broken Bar Fault Detection in IM Operating Under No-Load Condition

open access: yesAdvances in Electrical and Computer Engineering, 2016
This paper presents a novel method for broken rotor bar detection in a squirrel-cage induction motor (IM). The proposed method applies a single-phase AC voltage as a test signal on motor terminals, resulting in a stator backward-rotating magnetic field.
RELJIC, D.   +3 more
doaj   +1 more source

A Comprehensive Mixed-Mode Time-Domain Load- and Source-Pull Measurement System [PDF]

open access: yes, 2010
We present a novel test set devised for nonlinear balanced device characterization using load-pull techniques. The system is capable of measuring the voltage and current waveforms at the calibration reference planes while independently tuning the device ...
Ferrero, Andrea Pierenrico   +3 more
core   +1 more source

Rectangular Busbar With Circular Sensing Part for Wideband Current Measurement [PDF]

open access: yes, 2023
A simple, reliable, and novel busbar sensing configuration for frequency-independent current measurement is presented in this article. Yokeless current transducers using arrays of magnetic sensors around a rectangular busbar are linear and lightweight ...
Ripka P., George N.
core   +1 more source

The effect of surface roughness variations to eddy current displacement measurement

open access: yes, 2023
Publisher Copyright: © 2023 IEEE.Eddy current sensors are widely used in various industrial applications. A common application where high resolution and repeatability is required is vibration monitoring in rotating machinery.
Viitala, Raine   +2 more
core   +1 more source

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