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1 amplidyne amplifier
English-Russian dictionary of Information technology > amplidyne amplifier
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2 amplidyne-amplifier
Большой англо-русский и русско-английский словарь > amplidyne-amplifier
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3 amplidyne-amplifier
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4 amplidyne amplifier
Телекоммуникации: усилитель-автодин -
5 amplidyne amplifier
English-Russian dictionary of modern telecommunications > amplidyne amplifier
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6 amplidyne
n эл. амплидин, электромеханический усилитель -
7 amplidyne
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8 rotating amplifier
1) Техника: электромашинный усилитель2) Фирменный знак: (Amplidyne - название) амплидин -
9 rotating amplifier (Amplidyne - название)
Фирменный знак: амплидинУниверсальный англо-русский словарь > rotating amplifier (Amplidyne - название)
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10 усилитель-автодин
Большой англо-русский и русско-английский словарь > усилитель-автодин
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11 электромашинный усилитель
Большой англо-русский и русско-английский словарь > электромашинный усилитель
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12 Alexanderson, Ernst Frederik Werner
[br]b. 25 January 1878 Uppsala, Swedend. ? May 1975 Schenectady, New York, USA[br]Swedish-American electrical engineer and prolific radio and television inventor responsible for developing a high-frequency alternator for generating radio waves.[br]After education in Sweden at the High School and University of Lund and the Royal Institution of Technology in Stockholm, Alexanderson took a postgraduate course at the Berlin-Charlottenburg Engineering College. In 1901 he began work for the Swedish C \& C Electric Company, joining the General Electric Company, Schenectady, New York, the following year. There, in 1906, together with Fessenden, he developed a series of high-power, high-frequency alternators, which had a dramatic effect on radio communications and resulted in the first real radio broadcast. His early interest in television led to working demonstrations in his own home in 1925 and at the General Electric laboratories in 1927, and to the first public demonstration of large-screen (7 ft (2.13 m) diagonal) projection TV in 1930. Another invention of significance was the "amplidyne", a sensitive manufacturing-control system subsequently used during the Second World War for controlling anti-aircraft guns. He also contributed to developments in electric propulsion and radio aerials.He retired from General Electric in 1948, but continued television research as a consultant for the Radio Corporation of America (RCA), filing his 321st patent in 1955.[br]Principal Honours and DistinctionsInstitution of Radio Engineers Medal of Honour 1919. President, IERE 1921. Edison Medal 1944.BibliographyPublications relating to his work in the early days of radio include: "Magnetic properties of iron at frequencies up to 200,000 cycles", Transactions of the American Institute of Electrical Engineers (1911) 30: 2,443."Transatlantic radio communication", Transactions of the American Institute of ElectricalEngineers (1919) 38:1,269.The amplidyne is described in E.Alexanderson, M.Edwards and K.Boura, 1940, "Dynamo-electric amplifier for power control", Transactions of the AmericanInstitution of Electrical Engineers 59:937.Further ReadingE.Hawkes, 1927, Pioneers of Wireless, Methuen (provides an account of Alexanderson's work on radio).J.H.Udelson, 1982, The Great Television Race: A History of the American Television Industry 1925–1941, University of Alabama Press (provides further details of his contribution to the development of television).KFBiographical history of technology > Alexanderson, Ernst Frederik Werner
См. также в других словарях:
amplidyne — ☆ amplidyne [am′plə dīn΄ ] n. [ AMPLI(FIER) + DYNE] an amplifier that uses direct current and a rotating armature to generate a highly amplified output voltage that is sensitive to small changes in input voltage, used extensively to control… … English World dictionary
Amplidyne — An amplidyne is an electrodynamic amplifier invented during World War II by Ernst Alexanderson.It is an early form of servomechanism used to implement position feedback control for large motors. A small electrical signal can control the position… … Wikipedia
amplidyne — noun A form of electromechanical amplifier in which an AC motor drives a DC generator … Wiktionary
amplidyne — am•pli•dyne [[t]ˈæm plɪˌdaɪn[/t]] n. elm a direct current generator with a rotating armature: used in servo systems as a power amplifier • Etymology: 1935–40 … From formal English to slang
amplidyne — ˈampləˌdīn noun ( s) Etymology: amplifier + dyne (from Greek dynamis power) more at dynamic : a direct current generator that by the use of compensating coils and a short circuit across two of its brushes precisely controls a large power output… … Useful english dictionary
Metadyne — For other uses, see Metadyne (disambiguation). A Metadyne is an electrical machine with three, or more, brushes. It can be used as an amplifier or rotary transformer. It is similar to a third brush dynamo but much more complex, having additional… … Wikipedia
Servomechanism — [ thumb|right|200px|Industrial servomotor The grey/green cylinder is the brush type DC motor. The black section at the bottom contains the planetary reduction gear, and the black object atop the motor is the optical encoder for position feedback … Wikipedia
Synchro — [ frame|Schematic of Synchro TransducerThe complete circle represents the rotor. The solid bars represent the cores of the windings next to them. Power to the rotor is connected by slip rings and brushes, represented by the circles at the ends of … Wikipedia
Ernst Alexanderson — Infobox Scientist name = Ernst Frederick Werner Alexanderso caption = birth date = birth date|1878|1|25 birth place = Uppsala, Sweden death date = death date and age|1975|5|14|1878|1|25 death place = residence = United States nationality =… … Wikipedia
Ward Leonard control — Ward Leonard Control, also known as the Ward Leonard Drive System, was a widely used DC motor speed control system introduced by Harry Ward Leonard in 1891. In early 1900s, the control system of Ward Leonard was adopted by the U.S Navy and also… … Wikipedia
Амплидин — принятое в иностранной литературе название электрической машины для усиления слабых токов и мощности (Amplifier dynamo или Amplidyne). См. Электромашинный усилитель … Большая советская энциклопедия
