A New Multi-Gaussian Beam Model for Phased Array Transducers

2007 ◽  
Author(s):  
R. Huang ◽  
L. W. Schmerr ◽  
A. Sedov
Keyword(s):  
Gaussian Beam ◽  
Phased Array ◽  
Beam Model

Calculation of Radiation Beam Field from Phased Array Ultrasonic Transducers Using Expanded Multi-Gaussian Beam Model

2006 ◽  
Vol 110 ◽  
pp. 163-168 ◽  
Author(s):  
Joon Soo Park ◽  
Sung Jin Song ◽  
Hak Joon Kim
Keyword(s):  
Exact Solution ◽  
Gaussian Beam ◽  
Time Delays ◽  
Phased Array ◽  
Ultrasonic Transducers ◽  
Beam Model ◽  
Radiation Beam ◽  
Sommerfeld Integral ◽  
Calculation Results ◽  
Ultrasonic Phased Array

For the reliable application of ultrasonic phased array technique, it is necessary to understand the characteristics of the radiation beam field from the array transducers quantitatively. Very recently, it has been developed the expanded multi-Gaussian beam model that can calculate the radiation beam field from a single, rectangular transducer with great computational efficiency. In this paper, this model is adopted to calculate the radiation beam field from array transducers with various time delays to achieve steering and/or focusing. The calculation results are compared to those obtained by well known Rayleigh-Sommerfeld integral that provides the exact solution in order to explore the validity of the expanded multi-Gaussian beam model in this task.

Effectiveness of the Gaussian Beam Model in Predicting Sar Distributions from the Lucite Cone Applicator

1998 ◽  
Vol 14 (3) ◽  
pp. 293-308 ◽  
Author(s):  
P. J. M. Rietveld ◽  
M. L. D. Lumori ◽  
J. W. Hand ◽  
M. V. Prior ◽  
J. Van Der Zee ◽  
...  
Keyword(s):  
Gaussian Beam ◽  
Beam Model

Limitations of a Gaussian Beam Model for low-frequency acoustic propagation under ice

2017 ◽  
Vol 142 (4) ◽  
pp. 2714-2714
Author(s):  
Sean Pecknold ◽  
Diana F. McCammon ◽  
Dale D. Ellis
Keyword(s):  
Gaussian Beam ◽  
Low Frequency ◽  
Acoustic Propagation ◽  
Beam Model
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