sound intensity

См. также в других словарях:

• Sound intensity — The sound intensity, I , (acoustic intensity) is defined as the sound power Pac per unit area A . The usual context is the noise measurement of sound intensity in the air at a listener s location. For instantaneous acoustic pressure p inst( t )… …   Wikipedia

• sound intensity — ▪ physics       amount of energy flowing per unit time through a unit area that is perpendicular to the direction in which the sound waves are travelling. Sound intensity may be measured in units of energy or work e.g., microjoules (10 6 joule)… …   Universalium

• sound intensity — garso stipris statusas T sritis Standartizacija ir metrologija apibrėžtis Vienkrypčio garso, pereinančio per paviršių, statmeną sklidimo krypčiai, galia, padalyta iš to paviršiaus ploto. atitikmenys: angl. sound intensity vok. Schallstärke, f rus …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

• sound intensity — garso stipris statusas T sritis fizika atitikmenys: angl. sound intensity vok. Schallstärke, f rus. сила звука, f pranc. intensité du son, f; intensité sonore, f …   Fizikos terminų žodynas

• Sound intensity level — or acoustic intensity level is a logarithmic measure of the sound intensity in comparison to the reference level of 0 dB (decibels).The measure of a ratio of two sound intensities is:L mathrm{J}=10, log {10}left(frac{J 1}{J 0} ight) mathrm{dB}… …   Wikipedia

• sound-intensity level — noun : the relative sound intensity at any point in a sound field as compared with a specified standard intensity that is usually expressed in decibels above or below the standard …   Useful english dictionary

• sound intensity — noun : the intensity of a sound in a specified direction measured by the average rate at which sound energy passes through a unit area normal to that direction and commonly expressed in ergs per second per square centimeter …   Useful english dictionary

• Sound pressure — Sound measurements Sound pressure p, SPL Particle velocity v, SVL Particle displacement ξ Sound intensity I, SIL Sound power Pac Sound power level SWL Sound energy Sound energy d …   Wikipedia

• Sound power level — or acoustic power level is a logarithmic measure of the sound power in comparison to a specified reference level.The sound power level of a signal with sound power W is [ [http://hep.physics.indiana.edu/ rickv/Sound intensity.html Sound Power,… …   Wikipedia

• Intensity (disambiguation) — Intensity is a widely used term, which can refer to:In colloquial use: *Strength *Amplitude *Level *MagnitudeIn physics: *Intensity (physics), power per unit area (W/m2) *Field strength of electric, magnetic, or electromagnetic fields (V/m, T,… …   Wikipedia

• Sound power — Sound measurementsSound power or acoustic power P ac is a measure of sonic energy E per time t unit.It is measured in watts, or sound intensity I times area A ::P {mathrm{acoustic = I cdot AThe measure of a ratio of two sound powers is:L… …   Wikipedia