Max Wien

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Max Wien
Born(1866-12-25)25 December 1866
Königsberg, Prussia
Died22 February 1938(1938-02-22) (aged 71)
Jena, Germany
CitizenshipGermany
Known forWien bridge
Wien effect
Scientific career
FieldsPhysics
InstitutionsUniversity of Jena

Max Karl Werner Wien (German pronunciation:

Nobel laureate Wilhelm Wien
.

Wien studied in Konigsberg, Freiburg, and Berlin under

Gdańsk, Poland). From 1911 to 1935 he was Professor at University of Jena, in Jena, Germany, where he died in 1938.[1]

Wien's scientific research were in the areas of high frequency electronics, acoustics, and electrolyte conductance.

damped waves, in which the radio energy was spread over a wide bandwidth, limiting their range. In 1906 Wien invented a new type of spark gap, called a "quenched gap", that extinguished the spark immediately after energy had been transferred to the tuned circuit.[1] This transmitter produced very lightly damped waves, which had a narrower bandwidth and thus greater range, and also produced an easy to identify musical tone in the receiver headphones. Wien "singing spark" or quenched-spark transmitters ("Löschfunkensender")[1] were widely used until the end of the spark era around 1920. At Jena he studied the conductance of electrolyte solutions when high fields and high frequencies, discovering what is now called Wien's law.[1]

The

William Hewlett, co-founder of Hewlett-Packard
, was the first to use a Wien bridge as a feedback network around a vacuum tube amplifier to create an oscillator in 1939.

References

  1. ^
    ISBN 978-3642295515
    .
  2. ^ Wien, Max. Kulturstiftung der deutschen Vertriebenen für Wissenschaft und Forschung [1] (in German).
  3. doi:10.1007/BF01493271 (link to pdf)
    (in German).
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