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Fascinating facts about Ernst Alexanderson inventor of the Alexanderson alternator in 1909.

Ernst Alexanderson
 
AT A GLANCE:
Electrical engineer and inventor Ernst Fredrick Werner Alexanderson developed pioneering technological concepts during the early 20th century that contributed to the birth of the broadcasting industry. Alexanderson's numerous discoveries formed the basis for the technology that would make the transmission of voice, music, and pictures possible; his more than 340 patents and affiliations with some of the world's foremost scientists and business executives made him a central figure in the early years of broadcasting and earned him a place on the list of the most prolific U.S.-based inventors of all time. He designed the Alexanderson alternator, a high-frequency generator for longwave transmission, which made modulated (voice) radio broadcasts practical. Source: Inventor of the Week
Inventor: Ernst Fredrick Werner Alexanderson
Ernst F.W.Alexanderson photo courtesy IEEE History Center
Criteria: First to invent. First to patent. First practical.
Birth: January 25, 1878 in Uppsala, Sweden
Death: May 14, 1975 in Schenectady, New York
Nationality: Swedish
Invention: Alexanderson alternator
The two Alexanderson alternators at Grimeton, Sweden photo courtesy Adventures in Cybersound
Function: noun / alternator named after its inventor
Definition: A rotating machine for the generation of high frequency alternating current up to 100 kHz, for the purpose of radio communication.
Patent: 1,008,577 (US)  issued, November 14, 1911

TO LEARN MORE

RELATED INFORMATION:
Communication History   from The Great Idea Finder
 

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Reference Sources in BOLD Type. This page revised September 13, 2006.
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