acoustic ohm

acoustic ohm
   any one of several units measuring sound resistance. These units got their name by analogy with electric resistance, which is measured in ohms.
   The sound resistance across a surface in a given medium is defined to be the pressure of the sound wave at the surface divided by the volume velocity.
   Unfortunately, the result is often stated in "acoustic ohms" no matter what units are used to measure pressure and time. In the CGS system, the acoustic ohm equals 1 microbar second per cubic centimeter (µbar·s/cm3), which is the same as 1 dyn·s/cm5. In the MKS system, the acoustic ohm is equal to the SI unit, 1 pascal second per cubic meter (Pa·s/m3), or 1 N·s/m5.
   The CGS acoustic ohm equals 105 MKS acoustic ohms. See also rayl.

Dictionary of units of measurement. 2015.

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  • acoustic ohm — akustinis omas statusas T sritis Standartizacija ir metrologija apibrėžtis CGS vienetų sistemos kompleksinės akustinės varžos pasenęs matavimo vienetas. Žymimas akΩ: 1 akΩ = 1 dyn · s/cm⁵ = 105 Pa · s/m³. atitikmenys: angl. acoustic ohm vok.… …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • acoustic ohm — akustinis omas statusas T sritis fizika atitikmenys: angl. acoustic ohm vok. akustisches Ohm, n rus. акустический ом, m pranc. ohm acoustique, m …   Fizikos terminų žodynas

  • Acoustic ohm — The acoustic ohm is a unit of measurement of acoustic impedance, or resistance.ee also*DyneReferences* [http://www.diracdelta.co.uk/science/source/a/c/acoustic%20ohm/source.html Definition] * [http://lp2cd.com/audio terms/a/acoustic ohm.html… …   Wikipedia

  • acoustic ohm — noun : ohm * * * Acoustics. the unit of acoustic impedance, equal to the impedance of a medium in which a sound pressure of one dyne per square centimeter produces a velocity of one centimeter per second …   Useful english dictionary

  • acoustic ohm — Acoustics. the unit of acoustic impedance, equal to the impedance of a medium in which a sound pressure of one dyne per square centimeter produces a velocity of one centimeter per second. * * * …   Universalium

  • Ohm — /ohm/, n. Georg Simon, /gay awrddk zee mawn/ 1787 1854, German physicist. * * * ▪ unit of energy measurement       abbreviation Ω, unit of electrical resistance in the metre kilogram second system, named in honour of the 19th century German… …   Universalium

  • Acoustic impedance — The acoustic impedance Z (or sound impedance) is a frequency f dependent parameter and is very useful, for example, for describing the behaviour of musical wind instruments. Mathematically, it is the sound pressure p divided by the particle… …   Wikipedia

  • ohm — ohmic /oh mik/, adj. /ohm/, n. the SI unit of electrical resistance, defined to be the electrical resistance between two points of a conductor when a constant potential difference applied between these points produces in this conductor a current… …   Universalium

  • ohm acoustique — akustinis omas statusas T sritis Standartizacija ir metrologija apibrėžtis CGS vienetų sistemos kompleksinės akustinės varžos pasenęs matavimo vienetas. Žymimas akΩ: 1 akΩ = 1 dyn · s/cm⁵ = 105 Pa · s/m³. atitikmenys: angl. acoustic ohm vok.… …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • ohm acoustique — akustinis omas statusas T sritis fizika atitikmenys: angl. acoustic ohm vok. akustisches Ohm, n rus. акустический ом, m pranc. ohm acoustique, m …   Fizikos terminų žodynas

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