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- Parametric_oscillator abstract "A parametric oscillator is a harmonic oscillator whose parameters oscillate in time. For example, a well known parametric oscillator is a child pumping a swing by periodically standing and squatting to increase the size of the swing's oscillations. The varying of the parameters drives the system. Examples of parameters that may be varied are its resonance frequency and damping . Parametric oscillators are used in many applications. The classical varactor parametric oscillator will oscillate when the diode's capacitance is varied periodically. The circuit that varies the diode's capacitance is called the "pump" or "driver". In microwave electronics, waveguide/YAG based parametric oscillators operate in the same fashion. The designer varies a parameter periodically in order to induce oscillations.Parametric oscillators have been developed as low-noise amplifiers, especially in the radio and microwave frequency range. Thermal noise is minimal, since a reactance (not a resistance) is varied. One common use is frequency conversion, e.g., conversion from audio to radio frequencies. Another important example is the Optical parametric oscillator, which converts an input laser wave into two output waves of lower frequency .Parametric resonance occurs in a mechanical system when a system is parametrically excited and oscillates at one of its resonant frequencies. Parametric excitation differs from forcing since the action appears as a time varying modification on a system parameter. This effect is different from regular resonance because it exhibits the instability phenomenon.".
- Parametric_oscillator wikiPageExternalLink demo223.html.
- Parametric_oscillator wikiPageExternalLink S0036141098340703.
- Parametric_oscillator wikiPageExternalLink parres.htm.
- Parametric_oscillator wikiPageID "4902017".
- Parametric_oscillator wikiPageRevisionID "604768759".
- Parametric_oscillator hasPhotoCollection Parametric_oscillator.
- Parametric_oscillator subject Category:Amplifiers.
- Parametric_oscillator subject Category:Dynamical_systems.
- Parametric_oscillator subject Category:Ordinary_differential_equations.
- Parametric_oscillator subject Category:Oscillators.
- Parametric_oscillator type Amplifier102705944.
- Parametric_oscillator type Amplifiers.
- Parametric_oscillator type Artifact100021939.
- Parametric_oscillator type Device103183080.
- Parametric_oscillator type ElectronicDevice103277771.
- Parametric_oscillator type ElectronicEquipment103278248.
- Parametric_oscillator type Equipment103294048.
- Parametric_oscillator type Generator103434285.
- Parametric_oscillator type Instrumentality103575240.
- Parametric_oscillator type Object100002684.
- Parametric_oscillator type Oscillator103857430.
- Parametric_oscillator type Oscillators.
- Parametric_oscillator type PhysicalEntity100001930.
- Parametric_oscillator type Whole100003553.
- Parametric_oscillator comment "A parametric oscillator is a harmonic oscillator whose parameters oscillate in time. For example, a well known parametric oscillator is a child pumping a swing by periodically standing and squatting to increase the size of the swing's oscillations. The varying of the parameters drives the system. Examples of parameters that may be varied are its resonance frequency and damping . Parametric oscillators are used in many applications.".
- Parametric_oscillator label "Moto armonico parametrico".
- Parametric_oscillator label "Parametric oscillator".
- Parametric_oscillator label "Parametrischer Oszillator".
- Parametric_oscillator label "Pendule simple à résonance paramétrique".
- Parametric_oscillator label "Параметрический осциллятор".
- Parametric_oscillator sameAs Parametrická_rezonance.
- Parametric_oscillator sameAs Parametrischer_Oszillator.
- Parametric_oscillator sameAs Pendule_simple_à_résonance_paramétrique.
- Parametric_oscillator sameAs Moto_armonico_parametrico.
- Parametric_oscillator sameAs 係数励振.
- Parametric_oscillator sameAs m.0ct9qk.
- Parametric_oscillator sameAs Q2632607.
- Parametric_oscillator sameAs Q2632607.
- Parametric_oscillator sameAs Parametric_oscillator.
- Parametric_oscillator wasDerivedFrom Parametric_oscillator?oldid=604768759.
- Parametric_oscillator isPrimaryTopicOf Parametric_oscillator.