http://www.k-wave.org/forum/topic/single-transducer-and-target-reflection-setup Support for the k-Wave MATLAB toolbox en-US Wed, 13 May 2026 07:35:15 +0000 http://bbpress.org/?v=1.0.2 q http://www.k-wave.org/forum/search.php http://www.k-wave.org/forum/topic/single-transducer-and-target-reflection-setup#post-7771 Tue, 25 Aug 2020 15:46:41 +0000 chahne 7771@http://www.k-wave.org/forum/ <p>Hi again,</p> <p>I just figured out that the function 'kspaceFirstOrder2D(args)' returns 'sensor_data' which yields an oscillating amplitude when plotted. For now, that's pretty much what I was looking for. Thanks a ton!</p> <p>Best<br /> Chris </p> http://www.k-wave.org/forum/topic/single-transducer-and-target-reflection-setup#post-7770 Tue, 25 Aug 2020 15:26:55 +0000 chahne 7770@http://www.k-wave.org/forum/ <p>Hi Brad,</p> <p>Thanks for your help on this. I followed your advice and started with the 'example_tvsp_snells_law.m'. There, I managed to reduce the number of transducers to a single one with 'elements=1;' and connected a sensor via 'sensor.mask = source.p_mask;'.<br /> I further added the new 'sensor' variable to the command 'kspaceFirstOrder2D(kgrid, medium, source, sensor, input_args{:});'. Running this setup, I only find a single peak in sensor.mask, but nothing else. I would expect an oscillating signal or at least a pressure amplitude of certain length. Can you please guide me to the point where I can find such sensor data?</p> <p>I look forward to your reply.</p> <p>Many thanks<br /> Chris </p> http://www.k-wave.org/forum/topic/single-transducer-and-target-reflection-setup#post-7661 Sat, 27 Jun 2020 13:47:37 +0000 Bradley Treeby 7661@http://www.k-wave.org/forum/ <p>Hi Chris,</p> <p>There is no specific example for this. However, you could take something like the <a href="">Snell's Law And Critical Angle Reflection Example</a>, set <code>source.p</code> to be a single time series (so the source mask acts as a single transducer), assign <code>source.p_mask</code> to <code>sensor.mask</code> (so you use the same transducer to send and receive), and then update the medium definition as needed.</p> <p>Brad. </p> http://www.k-wave.org/forum/topic/single-transducer-and-target-reflection-setup#post-7644 Wed, 24 Jun 2020 16:57:50 +0000 chahne 7644@http://www.k-wave.org/forum/ <p>Dear all,</p> <p>I am considering to use k-Wave for simulation of a single transducer element (no phased-array) to model the ultrasound emission, power law, reflection at a target and acquisition of the reflected signal by the same transducer. I read through the manual, looked at the documentation and studied the example scripts, but I am still having a hard time setting up my relatively simple simulation. </p> <p>Is it possible to reproduce the above-mentioned setup within k-Wave? What would be a suitable starting point for reading or coding?</p> <p>Any help is appreciated.</p> <p>Many thanks<br /> Chris </p>