Results 51 to 60 of about 5,938 (188)

Domain size effects in Barkhausen noise

, 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, Belita Koiller, H. Barkhausen, H. J. S. Feder, H. Ji, J. C. Denardin, J. Urbach, K. P. O’Brien, K. Yamamoto, M. Bahiana, O. Narayan, O. Perković, P. Cizeau, R. L. Sommer, S. L. A. de Queiroz   +14 more
core   +1 more source

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

MATEC 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, Neslušan Miroslav, Mičietová Anna, Uríček Juraj   +3 more
doaj   +1 more source

Finite driving rates in interface models of Barkhausen noise

, 2001
We consider a single-interface model for the description of Barkhausen noise in soft ferromagnetic materials. Previously, the model had been used only in the adiabatic regime of infinitely slow field ramping. We introduce finite driving rates and analyze
B. Alessandro, B. Alessandro, B. Tadić, B. Tadić, B. Tadić, B. Tadić, G. Bertotti, G. Durin, G. Durin, H. Barkhausen, H. Leschhorn, H.J. Jensen, J.S. Urbach, M. Bahiana, M. Bahiana, M.C. Kuntz, O. Perković, O. Perković, P. Cizeau, S. L. A. de Queiroz, S. Zapperi   +20 more
core   +1 more source

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

Sensors, 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, Proloy Taran Das, Mijin Kim, Changyeop Jeon, Byeonghwa Lim, Ivan Soldatov, CheolGi Kim   +6 more
doaj   +1 more source

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

, 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., Rosenbaum, T. F., Silevitch, D. M., Xu, J.   +3 more
core   +2 more sources

Universal Pulse Shape Scaling Function and Exponents: A Critical Test for Avalanche Models applied to Barkhausen Noise [PDF]

, 2001
In order to test if the universal aspects of Barkhausen noise in magnetic materials can be predicted from recent variants of the non-equilibrium zero temperature Random Field Ising Model (RFIM), we perform a quantitative study of the universal scaling ...
A. H. Wooters, Amit P. Mehta, Andrea C. Mills, B. Alessandro, B. Gutenberg, D. S. Fisher, Djordje Spasojević, G. Durin, G. Durin, G. Grinstein, H. Ji, J. Ortín, J. P. Sethna, J. P. Sethna, J. P. Sethna, J. S. Urbach, J. Villain, James P. Sethna, Karin A. Dahmen, M. P. Lilly, Matthew C. Kuntz, Matthew C. Kuntz, O. Narayan, Olga Perković, Olga Perković, S. Field, S. Zapperi, W. Wu   +27 more
core   +1 more source

Simulation of magnetic hysteresis loops and magnetic Barkhausen noise of α-iron containing nonmagnetic particles

AIP Advances, 2015
The magnetic hysteresis loops and Barkhausen noise of a single α-iron with nonmagnetic particles are simulated to investigate into the magnetic hardening due to Cu-rich precipitates in irradiated reactor pressure vessel (RPV) steels.
Yi Li, Ben Xu, Shenyang Hu, Yulan Li, Qiulin Li, Wei Liu   +5 more
doaj   +1 more source

Hysteresis, Avalanches, and Barkhausen Noise

, 1997
Hysteresis, the lag between the force and the response, is often associated with noisy, jerky motion which have recently been called ``avalanches''. The interesting question is why the avalanches come in such a variety of sizes: naively one would expect either all small events or one large one.
Sethna, James P., Perkovic, Olga, Dahmen, Karin A.   +2 more
openaire   +2 more sources

Development of highly sensitive MI element by controlling anisotropy and noise analysis of MI element

AIP Advances, 2021
In order to further improve noise performance and achieve higher sensitivity, we have investigated a highly sensitive MI element by controlling anisotropy, and have analyzed noise components of a MI sensor by using a femto-tesla MI sensor system with a ...
J. Ma, T. Uchiyama
doaj   +1 more source

Crackling Noise in Fractional Percolation -- Randomly distributed discontinuous jumps in explosive percolation

, 2013
Crackling noise is a common feature in many systems that are pushed slowly, the most familiar instance of which is the sound made by a sheet of paper when crumpled. In percolation and regular aggregation clusters of any size merge until a giant component
Nagler, Jan, Rahbari, S. H. Ebrahimnazhad, Schroeder, Malte   +2 more
core   +1 more source