http://www.k-wave.org/forum/topic/plane-wave-simulation-commercial-probe Support for the k-Wave MATLAB toolbox en-US Tue, 12 May 2026 23:42:13 +0000 http://bbpress.org/?v=1.0.2 q http://www.k-wave.org/forum/search.php http://www.k-wave.org/forum/topic/plane-wave-simulation-commercial-probe#post-6893 Sat, 22 Jun 2019 20:04:02 +0000 Bradley Treeby 6893@http://www.k-wave.org/forum/ <p>Hi Farnazkhj,</p> <p>1. Yes, if you set the focus point to a large distance, you will get an unfocused transmit.</p> <p>2. As long as the transducer is not within the PML, you can set Nz to be a small number. The only downside is that you might not capture the complete out-of-plane behaviour, although the effect on the image is likely to be very small.</p> <p>3. Keep in mind a simulation in 2D is different to 3D (e.g., a point source in 2D corresponds to an infinite line source in 3D, so will spherical spreading will be less than a point source in 3D). If you can live with that, 2D will certainly be faster. </p> <p>Brad </p> http://www.k-wave.org/forum/topic/plane-wave-simulation-commercial-probe#post-6850 Tue, 14 May 2019 12:41:39 +0000 Farnaz 6850@http://www.k-wave.org/forum/ <p>Hi, </p> <p>I am new to k-wave and have some questions, I'm trying to simulate a commercial ultrasound transducer with 128 elements which 64 elements of it are activated in a plane wave scenario. </p> <p>1- If I set the focus point to inf (or very large values) when I am defining transducer parameters will I have plane wave? If not, how I can simulate plane wave for a commercial probe then? </p> <p>2- Based on the pitch and kerf parameters I need at least 1024 grid points in x and y direction (only for the transducer probe face)(3.75 cm probe 4 grid point for piezo and extra 4 grid points for kerf). The whole medium is then 4.24*4.24 cm and the probe plane is located just outside the PML. The same transducer will be used as sensor to record the data.<br /> As the transducer class only works in 3D mode, these many grid points are computationally expensive, what happens if I set Nz to a very small number while maintaining dz=dx=dy (say Nz = 16,32, etc...)? </p> <p>3- If this is not possible to do what are your suggestions for my simulation? Should I use 2D simulation and set everything manually instead of using transducer class? (BTW i'm using 3D c++ version for CUDA but I run it in MATLAB (I have a GeForce GTX 1080 Ti)) </p>