Andre Blondel ( fr. André Blondel ; August 28, 1863 , Chaumont , Haute-Marne , France - November 15, 1938 , Paris ) - French physicist and engineer, member of the Paris Academy of Sciences ( 1913 ). He is the inventor of an electromechanical oscilloscope and a system of photometric units.
| Andre Blondel | |
|---|---|
| fr. André blondel | |
 Andre Blondel in 1888 | |
| Date of Birth | August 28, 1863 |
| Place of Birth | Chaumont ( Upper Marne Department) |
| Date of death | November 15, 1938 (75 years old) |
| Place of death | Paris |
| A country | France |
| Scientific field | physics |
| Alma mater | Polytechnic School |
| Known as | oscilloscope inventor |
| Awards and prizes |  John Scott Medal (1898) Faraday Medal (1937) |
Biography
Blondel was born in the city of Chaumont (department of the Upper Marne). His father was a judge in Dijon . Andre was the best student in town. In 1888 he graduated from the School of bridges and roads. In 1888-1889 he worked in the laboratory at Maxim Kornu at the Polytechnic School. Since 1893 - professor of the Mining School and the School of Bridges and Roads. In the late 1890s, Blondel was paralyzed by his legs, but he continued to research, setting up a laboratory in Levallupe.
In 1893, Andre Blondel solved the problem of integral synchronization using the Cornu theory. These studies set the stage for a deeper understanding of AC behavior. This allowed him to invent a bifilar oscilloscope . It was more powerful than the classic strobe invented in 1891 .
In 1894, he proposed lumen and other photometric units.
In 1899, Blondel published the work “Empirical Theories of Synchronous Generators”, which contains the basic theories of two anchor reactions.
In 1913, he became a member of the French Academy of Sciences, and in 1927 received the Order of the Legion of Honor. In 1932 he was elected an honorary member of the USSR Academy of Sciences [1] . In 1937 he was awarded the Faraday Medal . He also received the Franklin Institute Medal and the Lord Kelvin Award.
Notes
- ↑ Profile of Andre-Eugene Blondel on the official website of the RAS
Links
- Hramov, Yu. A. Blondel Andre // Physicists: Biographical Reference / Ed. A.I. Akhiezer . - Ed. 2nd, rev. and add. - M .: Nauka , 1983 .-- S. 33 .-- 400 p. - 200,000 copies. (per.)
- Profile Blonde Andre-Eugene on the official website of the RAS
- André Blondel - French Scientist and Engineer by Gerard-Andre Capolino in IEEE Industry Applications Magazine, May / June 2004.
- André-Eugène Blondel Institute of Chemistry at The Hebrew University of Jerusalem. Published on April 17, 2003.
- Some portraits - Andre Blondel Academie de Poitiers, France. Accessed June 2008 (French) Google translation (link not available)