Results 1 to 10 of about 1,832,940 (315)

Quasi-Static Current Measurement with Field-Modulated Spin-Valve GMR Sensors [PDF]

open access: yesSensors, 2019
A non-contact current measurement device comprised of a GMR sensor and a ferrite ring core was investigated. The sensor chip employed a high-sensitivity spin-valve full-bridge GMR sensor of which the direct output has non-negligible hysteresis and a ...
Jen-Tzong Jeng   +3 more
doaj   +2 more sources

Circular Array of Magnetic Sensors for Current Measurement: Analysis for Error Caused by Position of Conductor [PDF]

open access: yesSensors, 2018
This paper analyzes the measurement error, caused by the position of the current-carrying conductor, of a circular array of magnetic sensors for current measurement. The circular array of magnetic sensors is an effective approach for AC or DC non-contact
Hao Yu, Zheng Qian, Huayi Liu, Jiaqi Qu
doaj   +2 more sources

Passive Fingerprinting of Same-Model Electrical Devices by Current Consumption

open access: yesSensors, 2023
One possible device authentication method is based on device fingerprints, such as software- or hardware-based unique characteristics. In this paper, we propose a fingerprinting technique based on passive externally measured information, i.e., current ...
Mikhail Ronkin, Dima Bykhovsky
doaj   +1 more source

Research on New Drilling Downlink Communication Based on Anisotropic Magnetoresistive Technology

open access: yesEnergies, 2022
With the continuous improvement of automatization of underground oil and gas resources exploitation, more and more instructions are required for the control technology while drilling in complex processes.
Liang Ge   +5 more
doaj   +1 more source

Detection of Irregular Sheath Current Distribution for Diagnosis of Faults in Grounding Systems of Cross-Bonded Cables

open access: yesIEEE Access, 2023
Sheath currents in high voltage cable circuits have proven to be one of the most convenient indicators for assessing cable health. The sheath currents are regularly distributed with fluctuation in a certain range under normal conditions, while the ...
Gen Li   +5 more
doaj   +1 more source

On the measured current in electrospinning [PDF]

open access: yesJournal of Applied Physics, 2010
The origin and scaling of the current measured during steady electrospinning of polymer solutions in organic solvents are considered. For a specified electric field strength E, flow rate Q, and conductivity K, the total measured current is shown empirically to scale as Itotal∼EQ0.5K0.4, for a wide variety of polymer solutions with different electrical ...
Bhattacharjee, P. K.   +4 more
openaire   +3 more sources

Characteristic Mode Analysis Prediction and Guidance of Electromagnetic Coupling Measurements to a UAV Model

open access: yesIEEE Access, 2022
In this work, we study the current coupled to a simplified Unmanned Aerial Vehicle (UAV) model using a dual computational and experimental approach. The simplified surrogate structure reduced the computational burden and facilitated the experimental ...
Mohamed Z. M. Hamdalla   +7 more
doaj   +1 more source

IoT and Biosensors: A Smart Portable Potentiostat With Advanced Cloud-Enabled Features

open access: yesIEEE Access, 2021
Recent advances in Internet-of-Things technology have opened the doors to new scenarios for biosensor applications. Flexibility, portability, and remote control and access are of utmost importance to move these devices to people’s homes or in a ...
Valentina Bianchi   +6 more
doaj   +1 more source

Conductivity and the current–current correlation measure [PDF]

open access: yesJournal of Physics A: Mathematical and Theoretical, 2010
We review various formulations of conductivity for one-particle Hamiltonians and relate them to the current-current correlation measure. We prove that the current-current correlation measure for random Schrödinger operators has a density at coincident energies provided the energy lies in a localization regime.
Combes, J. M.   +2 more
openaire   +2 more sources

Low-Impact Current-Based Distributed Monitoring System for Medium Voltage Networks

open access: yesEnergies, 2021
Distribution networks are currently subject to a huge revolution in terms of assets being installed. In particular, the massive spread of renewable energy sources has drastically changed the way of approaching the grid.
Alessandro Mingotti   +2 more
doaj   +1 more source

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