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- Particle displacement or displacement amplitude is a measurement of distance of the movement of a sound particle from its equilibrium position in a medium as it transmits a sound wave. The SI unit of particle displacement is the metre (m). In most cases this is a longitudinal wave of pressure (such as sound), but it can also be a transverse wave, such as the vibration of a taut string. In the case of a sound wave travelling through air, the particle displacement is evident in the oscillations of air molecules with, and against, the direction in which the sound wave is travelling. A particle of the medium undergoes displacement according to the particle velocity of the sound wave traveling through the medium, while the sound wave itself moves at the speed of sound, equal to 343 m/s in air at 20 °C. (en)
- Колебательное смещение (particle displacement) — векторная физическая величина, смещение частицы (бесконечно малой части среды) по отношению к среде в целом (положению равновесия частицы), обусловленное прохождением упругой волны. Направление колебательного смещения может совпадать или не совпадать с направлением распространения волны. (ru)
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- Колебательное смещение (particle displacement) — векторная физическая величина, смещение частицы (бесконечно малой части среды) по отношению к среде в целом (положению равновесия частицы), обусловленное прохождением упругой волны. Направление колебательного смещения может совпадать или не совпадать с направлением распространения волны. (ru)
- Particle displacement or displacement amplitude is a measurement of distance of the movement of a sound particle from its equilibrium position in a medium as it transmits a sound wave. The SI unit of particle displacement is the metre (m). In most cases this is a longitudinal wave of pressure (such as sound), but it can also be a transverse wave, such as the vibration of a taut string. In the case of a sound wave travelling through air, the particle displacement is evident in the oscillations of air molecules with, and against, the direction in which the sound wave is travelling. (en)
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- Schallauslenkung (de)
- Particle displacement (en)
- Колебательное смещение (ru)
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