André-Eugène Blondel
André-Eugène Blondel (born August 28, 1863 in Chaumont (Haute-Marne) , † November 15, 1938 in Paris ) was a French physicist . He is considered to be the inventor of the oscilloscope and developed a system of photometric units that is still in use today with minor modifications.
Live and act
André-Eugène Blondel graduated from the École des Ponts et Chaussées in 1888 as top of the class. After a job as an engineer, he later became a professor of electrical engineering at his alma mater.
In 1893 he invented the electromagnetic oscilloscope. In 1894 he proposed the lumen and other units of measurement for photometry . These were accepted at the International Congress of Electricians in Geneva in 1896 and are still in use today.
Blondel's contributions to science also include wireless telegraphy , acoustics and mechanics , and he developed proposals for a theory of the induction motor .
An (outdated) unit of luminance was named Blondel after him.
Honors
- Faraday Medal (1937)
- Franklin Institute Medal
- Montefiore Prize
- Lord Kelvin Prize
- Member of the Académie des sciences (1916)
- Honorary member of the Russian Academy of Sciences (1932)
- Commander of the Legion of Honor (1927)
Web links
Individual evidence
- ^ Foreign members of the Russian Academy of Sciences since 1724. André-Eugène Blondel. Russian Academy of Sciences, accessed August 2, 2015 .
- ↑ Archives Nationales: Dossier LH / 260/3
| personal data | |
|---|---|
| SURNAME | Blondel, André-Eugène |
| BRIEF DESCRIPTION | French physicist |
| DATE OF BIRTH | August 28, 1863 |
| PLACE OF BIRTH | Chaumont (Haute-Marne) |
| DATE OF DEATH | November 15, 1938 |
| Place of death | Paris |