Electronics Pioneers & History
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 Heinrich Georg Barkhausen (1881-1956) was a German physicist who made important
contributions to the study of electromagnetism and solid-state physics. He is
best known for his discovery of the Barkhausen effect and Barkhausen noise,
which occur in ferromagnetic materials.
Barkhausen studied physics at the University of Berlin, where he earned his
doctorate in 1907. After working as a research assistant for several years, he
became a professor at the Technical University of Dresden in 1920.
In 1919, Barkhausen discovered the phenomenon of Barkhausen noise, which is
the noise caused by the movement of magnetic domains in a ferromagnetic
material. His work on the Barkhausen effect provided important insights into the
behavior of ferromagnetic materials and helped to establish the field of
solid-state physics.
Barkhausen also made significant contributions to the study of electrical
oscillations and electromagnetic waves. He developed a method for measuring the
frequency of high-frequency electrical oscillations, known as the
Barkhausen-Kurz method, which is still used today.
During World War II, Barkhausen worked on the development of radar technology
for the German military. After the war, he was briefly held as a prisoner of war
by the Allies before returning to his academic work. Barkhausen received many
honors during his career, including the Max Planck Medal and the Hughes Medal.
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