Results 21 to 30 of about 1,729,649 (322)

MEASUREMENT OF THE ELECTRIC CURRENT IN A kpc-SCALE JET [PDF]

open access: yes, 2011
We present radio emission, polarization, and Faraday rotation maps of the radio jet of the galaxy 3C303. From these data we derive the magnetoplasma and electrodynamic parameters of this 50 kpc long jet.
P. Kronberg   +3 more
semanticscholar   +1 more source

New optical differential protection algorithm applied in bus protection

open access: yesThe Journal of Engineering, 2018
In order to improve the speed and reliability of bus protection, people put forward the optical current transformer (OCT) replaced the traditional electric–magnetic current transformer.
Zhu Sitong   +4 more
doaj   +1 more source

Nonintrusive overhead‐line current detection using a vertical magnetic‐field sensor array

open access: yesIET Generation, Transmission & Distribution, 2023
With the growing infrastructure for overhead lines, the demand for overhead‐line condition‐monitoring technologies has become increasingly urgent. Traditional current transformers used to measure three‐phase currents are bulky and difficult to install ...
Kun‐Long Chen   +2 more
doaj   +1 more source

Estimation of de-trapped charge for diagnosis of transformer insulation using short-duration polarisation current employing detrended fluctuation analysis

open access: yesHigh Voltage, 2020
Researchers have shown that the value of charge carriers, de-trapped from the oil–paper interface of power transformer insulation, is useful in carrying out the diagnosis.
Saurabh Dutta   +4 more
doaj   +1 more source

Observation of the Little-Parks Oscillations in a System of Asymmetric Superconducting Rings [PDF]

open access: yes, 2007
Little-Parks oscillations are observed in a system of 110 series-connected aluminum rings 2000 nm in diameter with the use of measuring currents from 10 nA to 1000 nA.
Burlakov, A. A.   +4 more
core   +1 more source

Precision Measurement of the Electron's Electric Dipole Moment Using Trapped Molecular Ions. [PDF]

open access: yesPhysical Review Letters, 2017
We describe the first precision measurement of the electron's electric dipole moment (d_{e}) using trapped molecular ions, demonstrating the application of spin interrogation times over 700 ms to achieve high sensitivity and stringent rejection of ...
W. Cairncross   +8 more
semanticscholar   +1 more source

Received signal strength indication-based localisation method with unknown path-loss exponent for HVDC electric field measurement

open access: yesHigh Voltage, 2017
The electric field environment under high-voltage direct current (HVDC) transmission lines is an important design consideration. In the wireless sensor networks for electric field measurement system under the HVDC transmission lines, it is necessary to ...
Xiaolan Gu   +6 more
doaj   +1 more source

Distributed measurement of high electric current by means of polarimetric optical fiber sensor.

open access: yesOptics Express, 2015
A novel distributed optical fiber sensor for spatially resolved monitoring of high direct electric current is proposed and analyzed. The sensor exploits Faraday rotation and is based on the polarization analysis of the Rayleigh backscattered light ...
L. Palmieri, D. Sarchi, A. Galtarossa
semanticscholar   +1 more source

Machine-learning ready data on the thermal power consumption of the Mars Express Spacecraft

open access: yesScientific Data, 2022
Measurement(s) electric current Technology Type(s) current readings in spacecraft housekeeping telemetry Sample Characteristic - Environment outer ...
Matej Petković   +15 more
doaj   +1 more source

Analisis Sensor Arus Invasive ACS712 dan Sensor Arus Non Invasive SCT013 Berbasis Arduino

open access: yesProtek: Jurnal Ilmiah Teknik Elektro, 2021
The electric load measurement system is a device designed to measure and monitor electricity consumption. In this research, the comparison process of reading the electric current uses the Non-Invasive current sensor model SCT013 and the Invasive current ...
wayan arsa suteja, adi surya antara
doaj   +1 more source

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