http://www.k-wave.org/forum/topic/using-a-transducer Support for the k-Wave MATLAB toolbox en-US Wed, 13 May 2026 01:09:13 +0000 http://bbpress.org/?v=1.0.2 q http://www.k-wave.org/forum/search.php http://www.k-wave.org/forum/topic/using-a-transducer#post-1590 Wed, 20 Mar 2013 08:34:07 +0000 Bradley Treeby 1590@http://www.k-wave.org/forum/ <p>Hi Vlad,</p> <p>The input for the transducer object is specified in units of velocity, so if your source strength is specified in units of pressure, you should scale it by the acoustic impedance, i.e., divide by <code>medium.sound_speed*medium.density</code>. If you are only using a single element, you may find it easier to directly specify the location of the element using <code>source.p_mask</code> or <code>source.u_mask</code>. You can then specify your input as either velocity (injection of force) or pressure (injection of mass).</p> <p>Brad. </p> http://www.k-wave.org/forum/topic/using-a-transducer#post-1520 Tue, 19 Mar 2013 11:45:12 +0000 vlad.boboia 1520@http://www.k-wave.org/forum/ <p>Hello. I have a question regarding the way the transducer object works. I have assigned a delta function input pulse as an input signal for the my transducer, which I might add has only one active element. I am not using the transducer to receive. The problem I am experiencing is that I have assigned the magnitude of the input signal driving the transducer as 1 and I am receiving a pulse with a magnitude around 300. I do not know if it is relevant or not, but I am simulating a heterogeneous medium. </p>