Hello Dr. Treeby, First of all, thank you for creating an excellent toolbox. I am a novice. I would like to set up a simulation of a singular transducer (not an array) with matching layer and transducer impinging wave into soft tissue. It's a simple setup: Transducer->Matching Layer->Soft tissue. Which examples can I look at to accomplish this? How do define the layer stack? FYI: I would like the students to explore acoustic impedance mismatch (e.g. having no matching layer vs matching layer, moderating the acoustic impedance values of the matching layer, etc.). Thank you again for your help.
k-Wave
A MATLAB toolbox for the time-domain
simulation of acoustic wave fields
Simulating Singular Transducer with Matching Layer
(2 posts) (2 voices)-
Posted 2 years ago #
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Hi snaik,
k-Wave's not designed for transducer design, as such, but you could set something up. For a 1D simulation use
kspaceFirstOrder1Dand setmedium.sound_speedandmedium.densityto have the three regions. Here's a 1D example to get started Simulations In One Dimension Example. This example is an initial value problem, and you may want to define a time-varying source instead. With large impedance changes, as there will be between PZT and water, it's important to ensure convergence with a convergence test (ie. keep halving the grid spacing until the output doesn't change).Best wishes
BenPosted 2 years ago #
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