Results 61 to 70 of about 5,844 (185)

Low‐Noise, Unbiased Ferromagnetic‐Resonance‐Driven Thin‐Film Integrated Giant Magnetoimpedance Sensors

open access: yesAdvanced Materials Technologies, Volume 10, Issue 14, July 22, 2025.
Utilizing a novel (Ni81Fe19/Ti)4/Cu/(Ni81Fe19/Ti)4 thin‐film multilayer with low coercive field, low damping and a superior GMI ratio, a compact, low‐noise unbiased FMR‐driven integrated GMI sensor with a superior magnetic noise performance of ≈100 pT/√Hz is first demonstrated, owing to reduced phase noise from well‐defined aligned magnetic domains and
Bin Luo   +8 more
wiley   +1 more source

Shot peening of stainless steels and their monitoring via Barkhausen noise emission

open access: yesJournal of Materials Research and Technology
This study investigates the shot peening of stainless steels with varying chemical compositions, focusing on the resulting microstructures and the associated Barkhausen noise emission.
M. Neslušan   +6 more
doaj   +1 more source

Operational Parameters for Sub-Nano Tesla Field Resolution of PHMR Sensors in Harsh Environments

open access: yesSensors, 2021
The resolution of planar-Hall magnetoresistive (PHMR) sensors was investigated in the frequency range from 0.5 Hz to 200 Hz in terms of its sensitivity, average noise level, and detectivity.
Taehyeong Jeon   +6 more
doaj   +1 more source

A High‐Performance Miniaturized Frequency Shift Detection System for QCM‐Based Gravimetric Sensing

open access: yesAdvanced Sensor Research, Volume 4, Issue 5, May 2025.
A miniaturized frequency shift detection system based on a phase‐locked loop (PLL) circuit is proposed for simplifying QCM measurement, possessing excellent performance of high sensitivity, resolution, linearity, and accuracy compared with a commercial frequency analyzer.
Chenyang Gao   +6 more
wiley   +1 more source

Magnetic Signatures and Magnetization Mechanisms for Grinding Burns Detection and Evaluation

open access: yesSensors, 2023
Grinding thermal damages, commonly called grinding burns occur when the grinding energy generates too much heat. Grinding burns modify the local hardness and can be a source of internal stress.
Benjamin Ducharne   +5 more
doaj   +1 more source

Domain size effects in Barkhausen noise

open access: yes, 1998
The possible existence of self-organized criticality in Barkhausen noise is investigated theoretically through a single interface model, and experimentally from measurements in amorphous magnetostrictive ribbon Metglas 2605TCA under stress.
B. Alessandro   +14 more
core   +1 more source

Non homogeneity of surface integrity after hard milling of high tempered bearing steel

open access: yesMATEC Web of Conferences, 2018
This paper deals with surface integrity after hard milling of high tempered bearing steel 100Cr6. Surface integrity is expressed in terms of shape deviation as well as Barkhausen noise emission. Furthermore, components of cutting forces are also measured
Čilliková Mária   +3 more
doaj   +1 more source

Barkhausen noise in the Random Field Ising Magnet Nd$_2$Fe$_{14}$B [PDF]

open access: yes, 2015
With sintered needles aligned and a magnetic field applied transverse to its easy axis, the rare-earth ferromagnet Nd$_2$Fe$_{14}$B becomes a room-temperature realization of the Random Field Ising Model.
Dahmen, K. A.   +3 more
core   +2 more sources

Hysteresis and noise in ferromagnetic materials with parallel domain walls [PDF]

open access: yes, 2009
We investigate dynamic hysteresis and Barkhausen noise in ferromagnetic materials with a huge number of parallel and rigid Bloch domain walls.
Benedetta Cerruti   +5 more
core   +2 more sources

Barkhausen Noise‐ and Eddy Current‐Based Measurements for Online Detection of Deformation‐Induced Martensite During Flow Forming of Metastable Austenitic Steel AISI 304L

open access: yesEngineering Reports, Volume 7, Issue 1, January 2025.
Barkhausen noise (BN)‐ and eddy currents (EC)‐based sensor systems were tested to detect deformation‐induced martensite during flow forming of austenitic steel 304L. The results with EC have advantages over those with BN due to the good correlation with reference α′‐martensite measurements and the low influence of factors such as roughness.
Julian Rozo Vasquez   +6 more
wiley   +1 more source

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