Phased Array 2D - Calculating Delays

Model Description

Ultrasonic phased arrays are a powerful technology used in a range of applications from biomedical imaging to non-destructive testing as well interest in the 5G RF domain to cope with maximizing the data rates. Phased arrays pulse and receive from multiple elements, they are pulsed in a way that causes the waves produced from each element combines to form a single wave front that is propagating in a desired direction. The example presented in this article will demonstrate how to set up a phased array model, calculate and apply the delay laws necessary to steer and focus the beam. The focusing is dependent on the circular test piece placed in the water load if this location is changed the delay laws will change accordingly.

Parametric Variables

The model allows the following design variables to be adjusted to control design metrics, such as the transmitting element number:

Outputs

Here are a list of the types of outputs to expect from this model:

• Time Histories (XY Graphs)
  • Drive input signal
  • Acoustic pressure 
• Maximum acoustic pressure data array
• Extrapolation output file 
  • Directivity plots 

Runtime Statistics

Files

The following input files are required to run this model, click here to download the input files:

• 2D Phased Array Model