parametric amplifier

a sensitive, low-noise amplifier of high-frequency or microwave radio waves that utilizes an inductor or capacitor whose reactance varies periodically at a similar frequency

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  • parametric amplifier — noun : a high frequency amplifier whose operation is based on time variations in a parameter (as reactance) and which converts the energy at the frequency of an alternating current into energy at the input signal frequency in such a way as to… …   Useful english dictionary

  • parametric amplifier — parametrinis stiprintuvas statusas T sritis automatika atitikmenys: angl. parametric amplifier vok. Parameterverstärker, m; parametrischer Verstärker, m rus. параметрический усилитель, m pranc. amplificateur paramétrique, m …   Automatikos terminų žodynas

  • parametric amplifier — parametrinis stiprintuvas statusas T sritis fizika atitikmenys: angl. parametric amplifier vok. parametrischer Verstärker, m rus. параметрический усилитель, m pranc. amplificateur paramétrique, m …   Fizikos terminų žodynas

  • parametric amplifier — Electronics. a device, as an electron tube or transistor, that amplifies a high frequency input signal by sinusoidally varying the reactance of the circuit. [1955 60] * * * …   Universalium

  • Optical parametric amplifier — An optical parametric amplifier, abbreviated OPA, is a laser light source that emits light of variable wavelengths by an optical parametric amplification process. Contents 1 Optical parametric generation (OPG) 2 Optical parametric amplification… …   Wikipedia

  • light parametric amplifier — parametrinis šviesos stiprintuvas statusas T sritis radioelektronika atitikmenys: angl. light parametric amplifier vok. Lichtparameterverstärker, m rus. параметрический усилитель света, m pranc. amplificateur paramétrique de lumière, m …   Radioelektronikos terminų žodynas

  • Parametric equalization — Parametric equalizer (or parametric EQ ) is an electronic multi band variable equalizer device used in sound recording and live sound reproduction with Public Address systems ( PA systems ). Parametric equalization devices allow audio engineers… …   Wikipedia

  • Parametric — may refer to:*Parametric equation *Parametric statistics *Parametric derivative *Parametric plot *Parametric model *Parametric resonance *Parametric contract *Parametric insurance *Parametric feature based modeler *Spontaneous parametric down… …   Wikipedia

  • Parametric oscillator — A parametric oscillator is a simple harmonic oscillator whose parameters (its resonance frequency omega and damping eta) vary in time in a defined wayAnother intuitive way of understanding a parametric oscillator is as follows: a parametric… …   Wikipedia

  • Optical amplifier — An optical amplifier is a device that amplifies an optical signal directly, without the need to first convert it to an electrical signal. An optical amplifier may be thought of as a laser without an optical cavity, or one in which feedback from… …   Wikipedia

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