9 Terms
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Acoustics
Of or pertaining to the study of mechanical waves in all stages of matter including sounds, vibration, ultrasounds, and infrasound.
Contributors in Acoustics
Acoustics
acoustic signature
Science; Acoustics
A pressure time-history, usually of a transient type (e.g. acoustic signature of a gunshot), that is characteristic of a particular sound source. The meaning is sometimes broadened to include any ...
acoustic sink
Science; Acoustics
An object or region that acts as a net absorber of acoustic energy under transient conditions, or of acoustic power under steady-state conditions.
absorbing boundary condition
Science; Acoustics
In computational acoustics a condition that is applied at the computational domain boundary to simulate extension of the domain to infinity, i.e. free-field radiation. The domain boundary should ...
absorption cross-section
Science; Acoustics
Of an object in an acoustic medium the area σ in the equation W abs =σI inc that gives the net sound power absorbed (within the object or the immediately surrounding medium), when the object is ...
acoustic telescope
Science; Acoustics
A device for imaging a distributed acoustic source from the far field. It may consist of an ellipsoidal reflector, with the remote focus placed near the source, or alternatively, of an array of ...
acoustic thermometry
Science; Acoustics
The use of acoustic travel time data to infer the temperature along an underwater ray path, by inversion of standard relationships between temperature and sound speed.
acoustic tomography
Science; Acoustics
In underwater acoustics the analysis of coded signals exchanged between multiple pairs of transmitting and receiving systems, in order to study ocean or sea bed properties. As an example, travel time ...
