acoustic ratio

отношение интенсивности звука, излученного источником, к интенсивности звука, отраженного от преграды

English-Russian dictionary of telecommunications and their abbreviations. . 2004.

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  • Acoustic cleaning — is used wherever there is a build up of dry materials and particulates which need to be cleaned regularly to ensure maximum efficiency and minimize maintenance and down time. An acoustic cleaner works by generating powerful sound waves which will …   Wikipedia

  • Acoustic Emission — (AE) is a naturally occurring phenomenon whereby external stimuli such as mechanical loading generate sources of elastic waves. AE occurs when a small surface displacement of a material is produced. This occurs due to stress waves generated when… …   Wikipedia

  • Acoustic resonance — is the tendency of an acoustic system to absorb more energy when the frequency of its oscillations matches the system s natural frequency of vibration (its resonance frequency ) than it does at other frequencies. A resonant object will probably… …   Wikipedia

  • 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

  • Acoustic scale — For the concept of scale in acoustics, see Acoustics and Scale (ratio). Acoustic scale on C  Play …   Wikipedia

  • acoustic impedance — Acoustics. the total reaction of a medium to the transmission of sound through it, expressed as the ratio of sound pressure to particle velocity at a given point in the medium. * * * ▪ physics       absorption of sound in a medium, equal to the… …   Universalium

  • Acoustic reflex — The acoustic reflex (stapedius reflex, attenuation reflex, or auditory reflex) is an involuntary muscle contraction that occurs in the middle ear of mammals in response to high intensity sound stimuli.When presented with a high intensity sound… …   Wikipedia

  • acoustic impedance — noun Physics the ratio of the pressure over an imaginary surface in a sound wave to the rate of particle flow across the surface …   English new terms dictionary

  • acoustic impedance — /əˌkustɪk ɪmˈpidns/ (say uh.koohstik im peedns) noun the complex ratio of sound pressure to the rate of volume displacement of the surface producing the sound …   Australian English dictionary

  • Golden ratio — For the Ace of Base album, see The Golden Ratio (album). Not to be confused with Golden number. The golden section is a line segment divided according to the golden ratio: The total length a + b is to the length of the longer segment a as the… …   Wikipedia

  • Ocean acoustic tomography — The western North Atlantic showing the locations of two experiments that employed ocean acoustic tomography. AMODE, the Acoustic Mid Ocean Dynamics Experiment (1990 1), was designed to study ocean dynamics in an area away from the Gulf Stream,… …   Wikipedia

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