Results 11 to 20 of about 625,400 (266)

High-accuracy current measurement with low-cost shunts by means of dynamic error correction [PDF]

open access: yesJournal of Sensors and Sensor Systems, 2016
Measurement of electrical current is often performed by using shunt resistors. Thermal effects due to self-heating and ambient temperature variation limit the achievable accuracy, especially if low-cost shunt resistors with increased temperature ...
P. Weßkamp, J. Melbert
doaj   +1 more source

SYMMETRICAL CURRENT SOURCE FOR BIOIMPEDANCE MEASUREMENTS

open access: yesИзмерение, мониторинг, управление, контроль, 2023
Background. The object of the study is a symmetrical current source for bioimpedance measurements. The subject of the study is to determine the ways of occurrence of errors in the measurement of bioimpedance.
Vladimir V. Antipenko   +3 more
doaj   +1 more source

Fiber fusion splicing error analysis of all-fiber optic current sensor with different demodulation schemes

open access: yesEnergy Reports, 2022
Measurement accuracy is essential for the all-fiber optic current sensor. Angle errors of axis alignment in the fusion processing affect the measurement accuracy with different modulation and demodulation methods.
Jianhua Wu   +3 more
doaj   +1 more source

Perancangan Alat Monitoring Error Current Transformer (AMOR CT) Menggunakan Arduino Mega 2560 dan Cayenne IoT

open access: yesJurnal Teknik Elektro Indonesia, 2021
Current Transformer (CT) is an important component that functions as a tool to regulate the amount of current that enters the kWh Meter on a 3-phase indirect measurement customer.
Taufik Hidayat, Hansi Effendi
doaj   +1 more source

UAV Attitude Angle Measurement Method Based on Magnetometer-Satellite Positioning System

open access: yesApplied Sciences, 2022
To improve the measurement accuracy of unmanned aerial vehicles (UAVs), in this study, we proposed a method for measuring the attitude angle of a UAV by the combination of a magnetometer and satellite positioning system.
Gaomin Qu   +5 more
doaj   +1 more source

A current to frequency conversion based circuit for low-level current measurement

open access: yesHe jishu, 2022
BackgroundWeak ionization current measurement is often needed in ionizing radiation detection, it is a great challenge due to extreme weak signal to be measured.
ZHAO Xu   +4 more
doaj   +1 more source

On the Measurement of Ocean Near-Surface Current from a Moving Buoy

open access: yesJournal of Marine Science and Engineering, 2023
This paper studies the error that occurs when measuring surface currents with a current meter mounted on a buoy or a mooring line whose horizontal and vertical motions respond to the presence of waves.
Carlos F. Herrera-Vázquez   +4 more
doaj   +1 more source

INFLUENCE OF VARIATIONS OF THE CONDUCTIVITY OF UPPER LAYER OF TWO-LAYER SAMPLE ON OF PHASE INTRODUCED ELECTROMOTIVE FORCE OF SUPERIMPOSED TRANSDUCER OF EDDY CURRENT THICKNESS METER

open access: yesПриборы и методы измерений, 2017
In carrying out eddy current thickness measurement of two-layer conductive objects one from the interfering factors is the presence of variations in the value of the electrical conductivity of the material of the upper layer (coating) when moving from ...
A. V. Chernyshev
doaj   +1 more source

Errors in measurement of current distribution in a superconducting tape [PDF]

open access: yesSuperconductor Science and Technology, 2011
The paper reports on the role of the typical mapping errors in measurement of the lateral sheet current distribution Iy(x) in a superconducting tape. The sheet current is calculated indirectly, from the mapped data of the self magnetic field of the superconducting layer. The field is generated by transport or induced current in a tape.
openaire   +1 more source

TMR array with circular skeleton coil for high-current measurement

open access: yesEnergy Reports, 2021
DC high current measurement is one of the important supporting technologies of the power system. As an emerging current sensing technology, tunnel magnetoresistance (TMR) has attracted more and more attention due to its advantages of high sensitivity and
Changxi Yue   +4 more
doaj   +1 more source

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