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1 Cady, Walter Guyton
[br]b. 10 December 1874 Providence, Rhode Island, USAd. 9 December 1974 Providence, Rhode Island, USA[br]American physicist renowned for his pioneering work on piezo-electricity.[br]After obtaining BSc and MSc degrees in physics at Brown University in 1896 and 1897, respectively, Cady went to Berlin, obtaining his PhD in 1900. Returning to the USA he initially worked for the US Coast and Geodetic Survey, but in 1902 he took up a post at the Wesleyan University, Connecticut, remaining as Professor of Physics from 1907 until his retirement in 1946. During the First World War he became interested in piezo-electricity as a result of attending a meeting on techniques for detecting submarines, and after the war he continued to work on the use of piezo-electricity as a transducer for generating sonar beams. In the process he discovered that piezo-electric materials, such as quartz, exhibited high-stability electrical resonance, and in 1921 he produced the first working piezo-electric resonator. This idea was subsequently taken up by George Washington Pierce and others, resulting in very stable oscillators and narrow-band filters that are widely used in the 1990s in radio communications, electronic clocks and watches.Internationally known for his work, Cady retired from his professorship in 1946, but he continued to work for the US Navy. From 1951 to 1955 he was a consultant and research associate at the California Institute of Technology, after which he returned to Providence to continue research at Brown, filing his last patent (one of over fifty) at the age of 93 years.[br]Principal Honours and DistinctionsPresident, Institute of Radio Engineers 1932. London Physical Society Duddell Medal. Institute of Electrical and Electronics Engineers Morris N.Liebmann Memorial Prize 1928.Bibliography28 January 1920, US patent no. 1,450,246 (piezo-electric resonator).1921, "The piezo-electric resonator", Physical Review 17:531. 1946, Piezoelectricity, New York: McGraw Hill (his classic work).Further ReadingB.Jaffe, W.R.Cooke \& H.Jaffe, 1971, Piezoelectric Ceramics.KF -
2 Electronics and information technology
See also: INDEX BY SUBJECT AREA[br]Byron, Ada AugustaNapier, JohnRiche, Gaspard-Clair-François-MarieSchickhard, WilhelmBiographical history of technology > Electronics and information technology
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3 Electricity
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4 Horology
See also: INDEX BY SUBJECT AREA[br]Ctesibius of AlexandriaGrimthorpe, Edmund Beckett, BaronSu SongYi-XingZhang Sixun -
5 Telecommunications
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Walter Guyton Cady — (1874 1974) est un ingénieur et physicien américain. Walter Cady est né à Providence, Rhode Island, en 1874. Il étudie à l université Brown, avant de partir à Berlin où il obtient son doctorat en 1900. Il revient ensuite aux États Unis et intègre … Wikipédia en Français
Walter Guyton Cady — Dr. Walter Guyton Cady (December 10, 1874 – December 9, 1974) was a noted American physicist and electrical engineer. He was a pioneer in piezoelectricity, and in 1921 developed the first crystal oscillator.Cady was born in Providence, Rhode… … Wikipedia
Walter Cady — Walter Guyton Cady Walter Guyton Cady est un ingénieur et physicien américain. Il fut un pionnier dans le domaine de la piézoélectricité au début du XXe siècle, notamment en mettant au point le premier oscillateur à quartz[1]. (en) Walter… … Wikipédia en Français
Quartz — This article is about the mineral. For other uses, see Quartz (disambiguation). Quartz Quartz crystal cluster from Tibet General Category … Wikipedia
G. W. Pierce — Infobox Scientist name = George Washington Pierce box width = caption = George Washington Pierce birth date =birth date|1872|1|11 birth place = Webberville, Texas death date = death date and age|1956|8|25|1872|1|11 death place = residence =… … Wikipedia
Crystal oscillator — A miniature 4 MHz quartz crystal enclosed in a hermetically sealed HC 49/US package, used as the resonator in a crystal oscillator. A crystal oscillator is an electronic oscillator circuit that uses the mechanical resonance of a vibrating crystal … Wikipedia
Wesleyan University people — This is a list of notable people affiliated with Wesleyan University.Administration and facultyAcademia* Hannah Arendt, Fellow 1962 1963, Political theorist * Wilbur Olin Atwater, 1865 (Wesleyan B.S.), first Professor of Chemistry; known for his… … Wikipedia
Duddell Medal and Prize — The Duddell Medal and Prize was a prize awarded annually by the Institute of Physics in the memory of William du Bois Duddell, the inventor of the electromagnetic oscillograph. The medal was instituted by the Council of The Physical Society in… … Wikipedia
George W. Pierce — (1892) George Washington Pierce (* 11. Januar 1872 in Webberville, Texas; † 25. August 1956) war ein US amerikanischer Physiker. Sein gleichnamiger Vater war ein texanischer Rancher. Er studierte zunächst an der University of Texas bei Alexander… … Deutsch Wikipedia
Кварцевый резонатор — В данной статье или разделе имеется список источников или внешних ссылок, но источники отдельных утверждений остаются неясными из за отсутствия сносок … Википедия
Le Plateau (centre d'art contemporain) — Le Plateau est l’espace d’exposition du Fonds régional d art contemporain (FRAC) d’Île de France. Sommaire 1 Historique 2 Objectif et missions 3 Liste des expositions 3.1 … Wikipédia en Français
