Born into a patrician family in Bremen, he showed interest in natural sciences from an early age. He studied at the universities of Munich and Berlin before obtaining a doctorate at the University of Göttingen in 1907.
He became Professor for Electrical Engineering at the Technische Hochschule Dresden in 1911 at the age of 29, thus obtaining the world's first chair in this discipline.
He discovered in 1919 an effect named after him, which suggested that ferromagnetic materials contain regions of like_oriented atoms. Induced changes in the magnetic orientation of these domains affect the whole domain and not individual atoms. With suitable equipment, these changes of orientation (jumps) can be heard.
Publications
Four volume teaching text: "Lehrbuch der Elektronenröhren, Elektronenröhren und ihre technischen Anwendungen."
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"Heinrich Georg Barkhausen (http://www.geocities.com/neveyaakov/electro-science/barkhausen.html)"
Heinrich Georg Barkhausen (December 2, 1881 - February 20, 1956), born at Bremen was a German physicist.
He discovered in 1919 an effect named after him, the Barkhausen effect, which suggested that ferromagnetic materials contain regions of like-oriented atoms.
Another contribution of his, the Barkhausen Criterion states that an oscillator will oscillate when the total phase shift from input to output back to input is 360 degrees and the system gain is at least 1.
The Barkhausen effect detector detects minute modulations of the intensity of the field of a set of shielded permanent magnets that bias a specially selected nonlinear magnetic core material to a critical level of magnetization, the most non linear region of the B / H curve for the core material used.
In the Barkhausen effect scalar detector, the core material is biased to the critical point in a divergent magnetic field produced by permanent magnets that are shielded from external electromagnetic fields.
The Barkhausen effect detector, and other magnetostatic detectors, may be given a slight "directional" preference to their response by making the path of the magnetic flux through the core larger in area than the remainder of the magnetic flux circuit.
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