Geoacoustic inversion based on particle velocity

2016 ◽  
Vol 139 (4) ◽  
pp. 2125-2125
Author(s):  
David R. Dall'Osto ◽  
Peter H. Dahl
Keyword(s):  
Particle Velocity ◽  
Geoacoustic Inversion

scholarly journals Geoacoustic inversion based on both acoustic pressure and particle velocity

2006 ◽  
Vol 120 (5) ◽  
pp. 3355-3356
Author(s):  
A. Vincent van Leijen ◽  
Jean‐Pierre Hermand ◽  
Kevin B. Smith
Keyword(s):  
Particle Velocity ◽  
Acoustic Pressure ◽  
Geoacoustic Inversion

Characteristic Acoustic Impedance for Reliable Environmental Characterization

2019 ◽  
Vol 27 (02) ◽  
pp. 1850054
Author(s):  
Qunyan Ren ◽  
Yaxiao Mo ◽  
Li Ma ◽  
Shengming Guo ◽  
Tianjun Liao
Keyword(s):  
Normal Mode ◽  
Particle Velocity ◽  
Acoustic Impedance ◽  
Physical Mechanism ◽  
Geoacoustic Inversion ◽  
Mode Theory ◽  
Line Array ◽  
Normal Mode Theory ◽  
Single Receiver ◽  
Higher Sensitivity

The characteristic acoustic impedance is a favorable observation variable for geoacoustic inversion (GI) owing to its higher sensitivity than that of pressure or particle velocity. However, no theoretical explanations have been provided for it. As an attempt to understand the underlying physical mechanism, interpretations based on the normal mode theory are conducted in this study. Moreover, synthetic Bayesian geoacoustic inversion with two recording scenarios of a vertical line array and single receiver are also performed, both of which proved that the impedance can provide improved estimation.

Particle velocity measurement in powder gas jets of coaxial powder nozzles for laser material deposition

2021 ◽  
Vol 33 (1) ◽  
pp. 012019
Author(s):  
Jonathan Schaible ◽  
Luis Andrea Hau ◽  
David Weber ◽  
Thomas Schopphoven ◽  
Constantin Häfner ◽  
...  
Keyword(s):  
Particle Velocity ◽  
Velocity Measurement ◽  
Laser Material ◽  
Gas Jets ◽  
Material Deposition ◽  
Particle Velocity Measurement
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