Results 21 to 30 of about 1,862 (168)

Tunnel Magnetoresistance Sensor with AC Modulation and Impedance Compensation for Ultra-Weak Magnetic Field Measurement

open access: yesSensors, 2022
Tunnel magnetoresistance (TMR) is a kind of magnetic sensor with the advantages of low cost and high sensitivity. For ultra-weak and low-frequency magnetic field measurement, the TMR sensor is affected by the 1/f noise.
Wenlei Zhao   +3 more
doaj   +1 more source

Error Analysis and Correction of a Downhole Rotating Magnetic Full-Tensor Gradiometer

open access: yesIEEE Access, 2020
Compared with ground magnetic measurement and aeromagnetic survey, downhole magnetic measurements can provide more abundant and accurate distribution information of ore deposits.
Yangyi Sui   +4 more
doaj   +1 more source

Cooled ferromagnetic shield as a part hybrid system for isolation of a flux qubit from electromagnetic environment

open access: yesVìsnik Harkìvsʹkogo nacìonalʹnogo unìversitetu ìmenì V.N. Karazìna. Serìâ: fìzika., 2021
Currently, circuits for quantum informatics, communications and measuring equipment containing superconducting flux qubits in a planar design are being created by quantum engineering techniques.
O.G. Turutanov   +5 more
doaj   +1 more source

Ultra Sensitive Geomagnetic Monitoring at Eilat Geophysical Observatory

open access: yesData Science Journal, 2011
Long-term precise magnetic observations are being carried out at the Eilat test site as a part of active tectonic fault multi-sensor geophysical monitoring.
B Ginzburg, B Shirman
doaj   +1 more source

research Paper: Atomic Gradiometer for Recording the Simulated Human Brain Signal in Unshielded Environment [PDF]

open access: yesفیزیک کاربردی ایران
The fields resulting from the brain's neural activities provide essential information in diagnosing and treating brain diseases such as epilepsy, convulsions, and brain tumors.
Mohammad Mahdi Tehranchi   +4 more
doaj   +1 more source

Superparamagnetic nanoparticle detection system by using a fundamental mode orthogonal fluxgate (FM-OFG) gradiometer

open access: yesAIP Advances, 2017
A new magnetic nanoparticle detection system by using a fundamental mode orthogonal fluxgate (FM-OFG) gradiometer and ac magnetizing coil has been developed.
Hikaru Karo, Ichiro Sasada
doaj   +1 more source

Magnetic gradiometers for petroleum exploration [PDF]

open access: yesExploration Geophysics, 1983
Magnetometers have been employed in differential arrays called gradiometers for over two decades. While the initial impetus for gradiometers was the removal of time variations such as micropulsations and diurnal variations, other advantages are assuming prominence.
S. Breiner, R. J. Henderson
openaire   +1 more source

The study of dependence of magnetic field gradient on parameters of hardened steel layer at pulse magnetic method of nondestructive testing

open access: yesОмский научный вестник, 2023
An assessment is made of the influence of the parameters of a controlled part by the magnetic method of non-destructive testing on the gradient of the magnetic field strength of the measuring transducer.
O. V. Tarasenko   +2 more
doaj   +1 more source

Picoammeters Based on Gradiometric Superconducting Quantum Interference Devices

open access: yesApplied Sciences, 2022
High-sensitivity ac current sensors based on a superconducting quantum interference device have been designed, fabricated and characterized. In particular, double-washer schemes in either parallel or series configurations have been considered.
Antonio Vettoliere, Carmine Granata
doaj   +1 more source

Magnetic Prospection in the Eastern Lower City of Artashat-Artaxata in the Ararat Plain of Armenia

open access: yesElectrum, 2022
In March of 2021, the Berlin-based company cmp continued geophysical prospection works at the ancient city of Artashat-Artaxata (Ararat Province, Armenia).
Achim Lichtenberger   +3 more
doaj   +1 more source

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