OSCILLATOR, ELECTRONIC

ŏsˈəlāˌtər, electronic circuit that produces an output signal of a specific frequency. An oscillator generally consists of an amplifier having part of its output returned to the input by means of a feedback loop; the necessary and sufficient condition for oscillation is that the signal, in passing from input to output and back to input via the feedback loop, arrive at the input with no change in amplitude or phase. If this condition is met for only a single frequency, the output is a pure sine wave; if it is met for more than one frequency, the output is a complex wave. Some oscillators are designed to operate under certain conditions so that the output is a square wave, a triangular wave, or a pulse. In some cases, a very stable mechanical oscillator, such as a specially prepared quartz crystal, may be coupled to an electronic oscillator to enhance its frequency stability. The frequency of a voltage-controlled oscillator, used in frequency modulation, is automatically adjusted by a small control current.

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The Columbia Encyclopedia, Sixth Edition Copyright© 2004, Columbia University Press. Licensed from Lernout & Hauspie Speech Products N.V. All rights reserved.

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Questia Books and Articles on: Oscillator Electronic
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books on: Oscillator Electronic  - 121 results

       More book Results: 1-10 11-20 21-30 31-40 41-50 >>  
 
1.
Electronic and Computer Music
Book by Peter Manning; Oxford University Press, 1994
Subjects: Computer Music--History And Criticism, Electronic Music--History And Criticism
...that nothing pertaining to electronic music is analogous to any...unsolved question is whether electronic music as a universal source...selection of the sine-wave oscillator as the most suitable source of electronic material. From the world...
2.
Electronic and Experimental Music: Pioneers in Technology and Composition
Book by Thom Holmes; Routledge, 2002
Subjects: Avant-Garde (Music), Electronic Music--History And Criticism
...1977 119 Nippon Hoso Kyokai Electronic Music Studio NHK Tokyo 88...sound, 5 , 132 ; see also electronic music Orgatron 75 Oscillator Banks 158 Oscillion 76 p Page...Way Out, The 152 ; Amazing Electronic Pop Sounds of Jean-Jacques...
3.
We Were Burning: Japanese Entrepreneurs and the Forging of the Electronic Age
Book by Bob Johnstone; Basic Books, 1999
Subjects: Electronic Industries--Japan--History, Electronic Industries--Technological Innovations--Japan--History
...and perform sounds, composers of electronic music could not help but be aware...sine waves that your garden-variety oscillator puts out are not exactly fun listening...than the unwavering monotony of the oscillators pure electronic tones. Chowning returned to California...
4.
Electronic Technology, Corporate Strategy, and World Transformation
Book by Maurice Estabrooks; Quorum Books, 1995
Subjects: Business Enterprises--Communication Systems, Computer Networks, Information Networks, Information Technology--Economic Aspects, Information Technology--Management, Strategic Planning
...invention of the triode set off some of the most important and lasting developments in modern electronic communications. One of these was the oscillator circuit, which generated a powerful radio signal at a given set of frequencies depending on...
5.
Colossus: The Secrets of Bletchley Park's Codebreaking Computers
Book by B. Jack Copeland; Oxford University Press, 2006
Subjects: Cryptography--Germany--History, Cryptography--Great Britain--History, World War, 1939-1945--Cryptography, World War, 1939-1945--Electronic Intelligence--Great Britain
...the beads must be strung together for coherent effects. The primum mobile in PCs is the clock. Based on an electronic oscillator built into the CPU chip, a PCs metronome may now beat faster than 4 gigahertz (GHz), or 4,000,000,000...
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journal articles on: Oscillator Electronic  - 16 results

       More journal Results: 1-10 11-16 >>  
 
1.
"Order out of Chaos:" A Reexamination of the Historical Basis for the Scarcity of Channels Concept
Journal article by Steven Phipps; Journal of Broadcasting & Electronic Media, Vol. 45, 2001
Subjects: Broadcasting industry--History, Radio broadcasting industry--History, Radio broadcasting--History, Radio stations--Licenses, United States. Federal Radio Commission--Management
...caused by receivers, in addition to poor reception ability, many of the crude "regenerative" receivers (also known as oscillator, radiating, or "squealer" radios) of the day unintentionally transmitted radio energy. When using such a receiver...
2.
The "Robot Voodoo Power" Thesis: Afrofuturism and Anti-Anti-Essentialism from Sun Ra to Kool Keith
Journal article by J. Griffith Rollefson; Black Music Research Journal, Vol. 28, 2008
Subjects: African American musicians--Criticism and interpretation, African American musicians--Works, Kool Keith--Criticism and interpretation, Kool Keith--Works, Rap singers--Criticism and interpretation, Rap singers--Works, Sun Ra--Criticism and interpretation, Sun Ra--Works
...in addition to hyperfuturistic electronic instruments such as the Wurlitzer...a free solo on MiniMoog--the oscillator-based futuristic keyboard instrument...misgivings about the effects of such electronic mediation and digital technologies...
3.
"Music's Most Glorious Voice": the Hammond Organ
Journal article by Henry B. Aldridge; Journal of American Culture, Vol. 19, 1996
Subjects: Hammond, Laurens (1895-1973), History, Musical instruments
...Unlike their purely electronic successors, Hammond...tube or transistor oscillators, but by moving...generated by an oscillator. It is a sound...than this. Modern electronic organs use digital...used vacuum tube oscillators and eventually...to dominate the electronic organ market in...
4.
Information in Life, Consciousness, Quantum Physics, and Paranormal phenomena/Informacion En la Vida, Consciencia, Fisica Cuantica, Y Fenomenos paranormales/L'information Dans la Vie, la Conscience, la Physique Quantique et Les Phenomenes paranormaux/Information Im Leben, Bewusstsein, in der Quantenphysik Und Bei Paranormalen Phanomenen
Journal article by J.E. Kennedy; The Journal of Parapsychology, Vol. 75, 2011
Subjects: Consciousness--Analysis, Parapsychology--Research, Quantum mechanics--Analysis, Quantum theory--Analysis
...to the sequence of binary electronic states used to store data...primitive tools to the complex electronic systems of modern society...to the operation of certain electronic random number generators...noise diode. The state of the oscillator at the end of the delay is...
5.
A Short Scientific Autobiography: Genesis of a Psychoacoustician of Music in Poland
Journal article by Andrzej Rakowski; Psychomusicology, Vol. 20, 2009
...screening tests) tuned a pure-tone oscillator to obtain in random order all within...of wind instruments") Department of Electronic Engineering Warsaw University of Technology...of Music) Warszawa, Poland M. Sc, Electronic Engineering, 1957, (Thesis: "Measurements...
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magazine articles on: Oscillator Electronic  - 62 results

       More magazine Results: 1-10 11-20 21-30 31-40 41-50 >>  
 
1.
Getting Mechanical with Oscillators
Magazine article by Michael Carr; Futures, Vol. 34, June 2005
Subjects: Electronic trading systems, Futures trading, Investment policy, United States
...trading tools. To test the use of oscillators as stand-alone systems, trading...of each indicator, as defined in "Oscillators explained." Specifically: * MACD...Buy signals occur when the momentum oscillator rises above zero, sells are taken...oversold levels identified in the "Oscillators explained" article. Trades are taken...
2.
The Kingklapper Electronic Marking System
Magazine article; American Cinematographer, Vol. 56, September 1975
The Kingklapper Electronic Marking System The Kingklapper Electronic Marking System, an ingenious...triggers the Nagra clapper oscillator. This lead is also wired...carries the Kingklapper internal oscillator signal to the line input of...
3.
Identifying Trends with Price and Breadth
Magazine article by Andrew Abraham; Futures, Vol. 33, November 2004
Subjects: Electronic trading systems, Investment policy, Securities trading, Trends, United States
...include the primary tools for analyzing market breadth. The McClellan oscillator is one such powerful tool. A McClellan oscillator based system would buy when the oscillator crosses from below to above zero. A sell signal is issued when the...
4.
Has Technical Analysis Kept Up with the (Dow) Jones'?
Magazine article by Darrell Jobman; Futures, Vol. 35, February 2006
Subjects: Electronic trading systems, Futures market, Futures trading, Market analysis, Software, Technological change, United States
...analysis for todays global, 24-hour electronic markets? Some new ideas in technical...RSI) in 1978: "RSI: A momentum oscillator that can help you spot market turns...explains. Williams, who hasnt gotten into electronic trading but submits orders to his broker...
5.
Realistically Speaking
Magazine article by Renato Di Lorenzo; Futures, Vol. 28, March 1999
Subjects: Electronic trading, Futures trading, Systems management, United States
...decision rules decreases the reliability. A typical non-linear decision rule can be an oscillator-based buy or sell signal that triggers when the oscillator reaches a certain level. Generally "smooth" decision rules, like those that involve...
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newspaper articles on: Oscillator Electronic  - 2 results

 
 
1.
Radio Stations Tune in to Listeners; Tracking Devices across Region Help Target Formats, Advertising
Newspaper article; The Washington Times, February 28, 2005
Subjects: Arbitron Co.
...detect signals emitted from a radios oscillator up to 140 feet away, Mr. Boice said...traffic counter. This is really an electronic station counter." MobilTrak cannot...Arbitron plans to test-market its own electronic measurement device called the Portable...
2.
Yesterday and Today
Newspaper article; Manila Bulletin, March 14, 2011
Subjects: Computer industry, International Business Machines Corp.
...Generation. This is where everything started - from HPs audio oscillator, Bell Telephone Laboratories complex number calculator to...programmable computer built with transistors, and later on the first electronic and transistorized computers from NEC and IBM.1960s Third...


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encyclopedia articles on: Oscillator Electronic  - 5 results

 
 
1.
Oscillator, Electronic
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
OSCILLATOR, ELECTRONIC os la t r, electronic circuit that produces...specific frequency. An oscillator generally consists...complex wave. Some oscillators are designed to operate...stable mechanical oscillator, such as a specially...may be coupled to an electronic oscillator to enhance...
2.
Maser
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
...or high frequency. The maser is an oscillator in which the basic frequency control...atomic resonance rather than a resonant electronic circuit. The waves produced by the...may be used as an amplifier or as an oscillator, the latter application requiring a...
3.
Atomic Clock
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
ATOMIC CLOCK electric or electronic timekeeping device that is...by a highly stable crystal oscillator whose output is automatically...atomic system. Errors in the oscillator frequency are then automatically...tracking space vehicles, electronic navigation systems, and studying...
4.
Watch
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
...recent years sophisticated electronic watches have been developed...In another type a crystal oscillator provides a signal that regulates...common type a quartz crystal oscillator is joined to digital counting...seconds per month. Electric and electronic watches are powered by tiny...
5.
Computer
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
...calculating machine, such as an electronic calculator , by being able...applications, desktop publishing , electronic games , and many other purposes...controlling them with a very stable oscillator , which acts as the computers...while the first all-purpose electronic digital computer, ENIAC...


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