Barkhausen jumps

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• Barkhausen effect — The Barkhausen effect is a name given to the noise in the magnetic output of a ferromagnet when the magnetizing force applied to it is changed. Discovered by German physicist Heinrich Barkhausen in 1919, it is caused by rapid changes of size of… …   Wikipedia

• Barkhausen effect — /bahrk how zeuhn, bahr kow /, Physics. the phenomenon of short, sudden changes in the magnetism of a ferromagnetic substance occurring when the intensity of the magnetizing field is continuously altered. [1955 60; named after H. Barkhausen (1881… …   Universalium

• barkhausen effect — ˈbärˌkau̇zən , rkˌhau̇ noun Usage: capitalized B Etymology: after Heinrich Barkhausen died 1956 German physicist and electrical engineer : the series of abrupt changes or jumps in the magnetization of a substance when the magnetizing field is… …   Useful english dictionary

• Heinrich Barkhausen — Infobox Scientist name = PAGENAME box width = image size =150px caption = PAGENAME birth date = December 2,1881 birth place = Bremen death date = February 20, 1956 death place = residence = |citizenship = nationality = German ethnicity = field =… …   Wikipedia

• Dresden University of Technology — Technische Universität Dresden Motto Wissen schafft Brücken. Established 1828 Type Public university …   Wikipedia

• Hysteresis — Not to be confused with Hysteria. Fig. 1. Electric displacement field D of a ferroelectric material as the electric field E is first decreased, then increased. The curves form a hysteresis loop. Hysteresis is the dependence of a system not… …   Wikipedia

• Rayleigh law — The Rayleigh law describes the behaviour of ferromagnetic materials at low fields.Ferromagnetic materials consist of magnetic domains. When a small external field H is applied, domains parallel to the external field start to grow. In this region …   Wikipedia

• Wiegand effect — The Wiegand effect is named after its discoverer, John R. Wiegand.OverviewThe Wiegand effect is a pulse generating phenomenon in a special alloy wire that is processed in such a way as to create two distinct magnetic regions in the same… …   Wikipedia

• Ferromagnetism — Not to be confused with Ferrimagnetism; for an overview see Magnetism A magnet made of alnico, an iron alloy. Ferromagnetism is the physical theory which explains how materials become magnets. Ferromagnetism is the basic mechanism by which… …   Wikipedia

• Bark|hau|sen effect — «BAHRK HOW zuhn», a series of small, abrupt jumps in the magnetization of iron or other ferromagnetic substances occurring as the magnetizing force is smoothly increased or decreased, considered to be due to atomic reorientation. ╂[< Heinrich… …   Useful english dictionary