Particle Displacement


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Particle Displacement

 

a displacement £ of an infinitely small part of the medium with respect to the medium as a whole as a result of the passage of a sound wave. The direction of particle displacement may or may not coincide with the direction of wave propagation, depending on the wave type. For all attainable sound intensities the particle displacement is ξ < λ, where λ is the wavelength of the sound wave.

References in periodicals archive ?
For both PIV and PTV algorithms, the particle displacement between two frames must be within a certain range that also depends on the number of particles per volume to avoid ambiguity in particle image positions.
In addition, the particle displacement amplitude has linear relations with the magnitudes of fast Fourier transform (FFT) [F.
In this case, electrical voltage is applied across composite terminals and the mechanical response in terms of generated particle displacement at [f.
2013) and below the corner frequency the amplitude spectra of particle displacement is flat down to 0 Hz (Aki and Richards, 2002).
Microrheology (4) measures the particle displacement resulting from an applied stress (active method) or due to the thermal energy (passive method).
In a 3D geometry, the particle displacement associated to the Rayleigh wave emitted by a growing crack under stress can be calculated by applying the elastodynamic reciprocity principle.
The VPTV system uses two cameras to view the illuminated flow field and capture particle displacement images with the parallax effect.
The emergence of a transversal wave in a solid leads inevitably to a particle displacement on a perpendicular direction to wave velocity vector, the longitudinal deformation being ignore.
The particle displacement as a function of time then is used to infer the velocity flow field.
These results support the concept that line tension plays a significant role in particle displacement (Geiser et al.
Nichols, "A Radio Frequency Identification System for Monitoring Coarse Sediment Particle Displacement," Applied Engineering in Agriculture, Vol.