Sound intensity - Wikipedia
Sound intensity, also known as acoustic intensity, is defined as the power carried by sound waves per unit area in a direction perpendicular to that area. The SI unit of intensity, which includes sound intensity, is the watt per square meter (W/m 2).
14.2 Sound Intensity and Sound Level - Physics - OpenStax
Describe the decibel scale for measuring sound intensity; Solve problems involving the intensity of a sound wave; Describe how humans produce and hear sounds
Acoustic Intensity - an overview | ScienceDirect Topics
Acoustic intensity is defined as the variation of the energy flux produced by the acoustic perturbation. The energy flux density is I → = − ( σ · υ → − q → ) . For a perfect fluid, since τ = σ + pI = 0 and q → = 0 , then I → = p υ → .
3. Sound Intensity and Pressure | Basic Acoustics
Sound intensity refers to the amount of sound energy that passes through a particular area in one second (i.e. power/area). Sound intensity is usually denoted by a capital I and the unit of intensity is W/m 2 or Wm -2.
Sound intensity | Decibels, Waveforms & Pressure | Britannica
sound intensity, 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) per second per square centimetre—or in units of power, as microwatts (10 -6 watt) per square ...
Fundamentals of Acoustics: Sound Pressure, Sound Power and Sound Intensity
2021年1月26日 · Sound intensity is the sound power per unit area and indicates the flow of sound through a specific area in a direction. The SI Unit is W/m2. Sound intensity is directly related to sound pressure: Sound Intensity=Sound Pressure x Particle Velocity.
Sound Intensity, Power and Pressure Levels - The Engineering ToolBox
Sound intensity is the ratio acoustic or sound power to area. The SI-unit for Sound Intensity is W/m2. The Sound Intensity Level can be expressed as: The sound pressure is the force (N) of a sound on a surface area (m2) perpendicular to the direction of the sound. The SI-unit for the Sound Pressure is N/m2 or Pa.
Typical acoustic velocities are 900 - 2000 m s-1 in liquids (~1500 m s-1 in water), and 1500– 13,000 m s-1 in solids (~5900 m s-1 in steel).
16.2: Sound Intensity and Level - Physics LibreTexts
The sound intensity is what humans can hear, and is generally only a specific range of sound, usually from 20 Hz to 20,000 Hz. The factors that go into a sound are its intensity, frequency and overtones (which are like interference or background noises).
Acoustic wave - Wikipedia
Acoustic waves are a type of energy propagation that travels through a medium, such as air, water, or solid objects, by means of adiabatic compression and expansion. Key quantities describing these waves include acoustic pressure, particle velocity, particle displacement, and acoustic intensity.
- 某些结果已被删除