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Topics related to "oscillator"

electronic oscillator
electronic oscillator , 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 sign... Read more
El Niño-Southern Oscillation
El Niño-Southern Oscillation (ENSO) , large-scale climatic fluctuation of the tropical Pacific Ocean. The El Niño [Span.,=the child] itself is a warm surface current that usually appears around Christmas in the Pacific off Ecuador and Peru and disappears by the end of March, but ev... Read more
Aleksandr Mikhailovich Prokhorov
Aleksandr Mikhailovich Prokhorov , 1916-2002, Russian physicist, b. Atherton, Queensland, Australia. In 1923 he was taken to the Soviet Union by his parents, who had emigrated to Australia to escape the czarist regime. In 1947 he began his research into the coherent radiation of electrons, followed ... Read more
atomic clock
atomic clock electric or electronic timekeeping device that is controlled by atomic or molecular oscillations. A timekeeping device must contain or be connected to some apparatus that oscillates at a uniform rate to control the rate of movement of its hands or the rate of change of its digits. Mech... Read more
watch
watch small, portable timepiece usually designed to be worn on the person. Other kinds of timepieces are generally referred to as clocks . At one time it was generally believed that the first watches were made in Nuremburg, Germany, c.1500. However, there is now evidence that watches may have appe... Read more
Barnard's star
Barnard's star star with the largest observed proper motion (rate of motion across the sky with respect to other stars); located in the constellation Ophiuchus. The star's large proper motion, 10.28′′ per year (or half the moon's apparent diameter in a century), is due in part to the ... Read more
magnetron
magnetron , vacuum tube oscillator (see electron tube ) that generates high-power electromagnetic signals in the microwave frequency range. Its operation is based on the combined action of a magnetic field applied externally and the electric field between its electrodes. The tube is a diode hav... Read more
maser
maser , device for creation, amplification, and transmission of an intense, highly focused beam of high-frequency radio waves. The name maser is an acronym for m icrowave a mplification by s timulated e mission of r adiation, microwaves being radio waves of short wavelength, or high frequency... Read more
neutrino
neutrino [Ital.,=little neutral (particle)], elementary particle with no electric charge and a very small mass emitted during the decay of certain other particles. The neutrino was first postulated in 1930 by Wolfgang Pauli in order to maintain the law of conservation of energy during beta deca... Read more
antenna
antenna , in electronics, system of wires or other conductors used to transmit or receive radio or other electromagnetic waves (see radio ); sometimes called an aerial. The idea of using an antenna was developed by Guglielmo Marconi (c.1897). In a transmitting antenna, the signal from an electronic... Read more

Encyclopedia entries related to "oscillator"

electronic oscillator
Book article from: The Columbia Encyclopedia, Sixth Edition electronic oscillator , electronic circuit...specific frequency. An oscillator generally consists of...a complex wave. Some oscillators are designed to operate...very stable mechanical oscillator, such as a specially...
oscillator
Book article from: World Encyclopedia oscillator In physics, a device for producing electrical oscillations (vibrations), such as sound waves, as in a sonar or an ultrasonic generator. In electronics, an oscillator circuit converts direct current (DC) electricity into high-frequency alternating current (AC) .
Charles Hard Townes
Encyclopedia entry from: Encyclopedia of World Biography ...investigation effectively, oscillators that could produce very short...possible to build an ordinary oscillator that would be able to generate...first attempt to produce an oscillator that would suit his purpose...produce a self-excited oscillator that could amplify signals...
Hewlett, William R
Encyclopedia entry from: Gale Encyclopedia of E-Commerce ...was a resistance capacity audio oscillator (HP 200A), essentially a sound...encouraged the partners to market the oscillator, and this advice proved well...Disney ordered eight of the new oscillators for the production of Fantasia...
Aleksandr Mikhailovich Prokhorov
Book article from: The Columbia Encyclopedia, Sixth Edition ...spectroscopy. With N. G. Basov he created an oscillator based on the stimulated emission of...developing an ammonia-beam molecular oscillator, Prokhorov formulated the main principles...work, which led to the construction of oscillators and amplifiers based on the maser...
radio
Book article from: The Columbia Encyclopedia, Sixth Edition ...carrier wave that has been generated by an oscillator circuit in a transmitter. The modulated...are mixed with a signal from a local oscillator to produce intermediate frequencies...on a radio receiver adjusts the local oscillator frequency. If the incoming signals...
Oscillating Reactions
Encyclopedia entry from: The Gale Encyclopedia of Science ...or evenly toward their final concentrations). Chemical oscillators exhibit chaotic behavior, in which concentrations of products...reaction, the first identified homogeneous isothermal chemical oscillator, which is a complex reaction of iodate, iodine, and hydrogen...
Hewlett-Packard Co
Encyclopedia entry from: Gale Encyclopedia of E-Commerce ...the partners began marketing a resistance capacity audio oscillator (HP 200A), which was essentially a sound-equipment testing...first break came when Walt Disney ordered eight of the new oscillators for the production of Fantasia . In January of 1939, Hewlett...
Packard, David
Encyclopedia entry from: Gale Encyclopedia of E-Commerce ...advised the partners to market a resistance capacity audio oscillator — a sound equipment tester — that Hewlett...major order came when Walt Disney requested eight of the new oscillators for the production of Fantasia . In January of 1939, Packard...
atomic clock
Book article from: The Columbia Encyclopedia, Sixth Edition ...Instead, the clock is controlled by a highly stable crystal oscillator whose output is automatically multiplied and compared with the frequency of the atomic system. Errors in the oscillator frequency are then automatically corrected. Time is usually...

Dictionary entries related to "oscillator"

oscillator
Book article from: A Dictionary of Computing oscillator An electronic circuit that switches back and forth between states. Oscillators are mainly used to provide clock signals or...specialized form is the VCO (voltage controlled oscillator) in which the frequency may be modified within...
electronic music
Book article from: The Concise Oxford Dictionary of Music ...tape, film sound-track, oscillator, gramophone recording...different speeds, audio oscillators, and an amplified wire coil...simplified, is that the oscillators used as sound sources are...often with its own tuned oscillator, or set to act as a voltage...
Kramers, Hendrik Anthony
Dictionary entry from: Complete Dictionary of Scientific Biography ...empha. sized the notion of virtual oscillators associated with quantum transitions...classical theory an isotropic harmonic oscillator with charge e , mass m , and frequency...quanta. The notion of virtual oscillators was the starting point of Heisenberg...
Hasenöhrl, Friedrich
Dictionary entry from: Complete Dictionary of Scientific Biography ...he notes that Planck ’ s simple harmonic oscillators obey the formula with E an energy, t the period of the oscillator, and V the volume of phase space available to an oscillator with energy ≦ E . The motion within real...
superheterodyne receiver
Book article from: A Dictionary of Astronomy ...mixed with a signal of lower frequency generated by a local oscillator, thereby reducing its frequency to a value (the intermediate...receiver is tuned by varying the frequency of the local oscillator so that the IF is kept constant.
Ladenburg, Rudolf Walther
Dictionary entry from: Complete Dictionary of Scientific Biography ...electromagnetism, yielded a rough value of 씑 e = 4 X 10 12 oscillators per cubic centimeter, equivalent to about one in 50,00...based on the Hall effect. It also demonstrated that the oscillators were negatively charged particles. Ladenburg discussed these...
Marconi, Guglielmo
Dictionary entry from: Complete Dictionary of Scientific Biography ...x2019; s in its use of a Ruhm-korff-coil spark gap oscillator and dipole antennas with parabolic reflectors, but it replaced...J. Round, who developed the triode as a radio frequency oscillator and amplifier independently of De Forest; R. M. Vyvyan...
Pierce, George Washington
Dictionary entry from: Complete Dictionary of Scientific Biography ...the development of the quartz-crystal “ Pierce oscillator ” used in circuits that control the frequency of...Principles of Wireless Telegraphy (New York, 1910); Electric Oscillators and Electric Waves (New York, 1919); and The Song of...
amplifier
Book article from: The Concise Oxford Dictionary of Music ...of sound. Voltage-controlled amplifiers alter the vol. of the input signal. They can be used in electronic music in conjunction with voltage-controlled oscillators and filters and a kbd. to function as a monophonic mus. instr.
receiver
Book article from: A Dictionary of Astronomy ...and hence increase their sensitivity. On radio telescopes the incoming signal, after amplification, is mixed with a local oscillator to produce a lower intermediate frequency that suffers lower loss when passing along cables from the telescope to the observing...

Related newspaper, magazine, and trade journal articles from HighBeam Research

Oscillators 101.(Technology Information)
Magazine article from: Wireless Design & Development; 11/1/1999; ; 700+ words ; ...crystal controlled oscillators This article is intended...about crystal control oscillators for engineers. For...of this paper, an oscillator may be defined as...information about oscillators. The oscillator In its simplest form...
Oscillators in context. (research testing the reliability of momentum oscillators as market trading indicator)
Magazine article from: Futures (Cedar Falls, Iowa); 12/1/1997; ; 700+ words ; ...through divergence. Oscillators also often produce...application of traditional oscillator signals. Gaining a...The traditional oscillator signals underperformed...benchmarks and the oscillator "fade" signals...figure reveals that oscillators actually are more successful...
Crystal Oscillators 2008: The Decade Ahead Considers Key End Use and Design Trends for Each Product Type.
M2 Presswire; 9/10/2008; 700+ words ; ...c5949b/crystal_oscillator) has announced...the "Crystal Oscillators 2008: The Decade...revenues for oscillators (2008-2013...shipments for oscillators (2008-2013...3-3: World oscillator shipments by...
Crystal oscillators hit higher frequencies in smaller packages.
Magazine article from: EDN; 12/22/1988; ; 700+ words ; ...mA for a 1-MHz oscillator and 20 mA for a...the MCSO clock oscillators are supplied in...or S2650 Series oscillators. Unlike metal-can oscillator packages, which...and S2650 Series oscillators come in standard...
Crystal oscillators provide precision in high-speed systems. (EDN-Technology Update) (Column)
Magazine article from: EDN; 5/7/1992; ; 700+ words ; ...systems, the crystal oscillator can fill the bill...counts. Crystal oscillators with output frequencies...packages. Crystal oscillators offer designers...select only as much oscillator as you need for...need to buy an oscillator with all the bells...need for them. Oscillators are ...
Precision oscillators in network applications. (Designer's Corner).
Magazine article from: Wireless Design & Development; 5/1/2002; ; 700+ words ; ...precision oscillators the seemingly...parade of oscillator technologies...Rubidium oscillator, which is...Although these oscillators may require...stability of the oscillator. Table 1...Rubidium oscillators for two commonly...
MEMS oscillators earn their stripes: for more than 50 years, quartz oscillators dominated the marketplace. Now it's silicon's turn.(MATERIALS SCIENCE/NANOTECHNOLOGY)
Magazine article from: R & D; 4/1/2008; ; 700+ words ; ...an accurate oscillator joined to a silicon...itself as a viable oscillator material-quartz...Silicon-based oscillators remained an elusive...s MEMS clock oscillators contain a MEMS resonator, an oscillator stage, frequency...
ASIC oscillator cells reduce system timing costs. (application-specific integrated circuits)(includes related articles)
Magazine article from: EDN; 7/20/1995; ; 700+ words ; ...Now, commonly available oscillator standard cells make the...Traditionally, quartz-crystal oscillators have been self-contained in hybrid oscillator packages or are designed...crystal units. Hybrid oscillators can be costly, and in...
Integration of oscillators with patch antennas.
Magazine article from: Microwave Journal; 1/1/1993; ; 700+ words ; ...receivers.|3,4~ The integration of oscillators with different antennas has been...paper, a technique of integrating oscillators with patch antennas is explained. Oscillator Design Only oscillators realized with quadripoles (transistors...
Avoiding the oscillator trap. (momentum oscillators)
Magazine article from: Futures (Cedar Falls, Iowa); 10/1/1997; ; 700+ words ; ...dozen (or more) oscillator studies in their indicator libraries. "New" oscillators seem to crop up on...such a situation, oscillator signals alone will...It's true momentum oscillators effectively can locate...range markets. Basic oscillator overbought and oversold...