http://www.k-wave.org/forum/topic/pressure-detected-and-its-frequency Support for the k-Wave MATLAB toolbox en-US Wed, 13 May 2026 00:46:35 +0000 http://bbpress.org/?v=1.0.2 q http://www.k-wave.org/forum/search.php http://www.k-wave.org/forum/topic/pressure-detected-and-its-frequency#post-4180 Sat, 07 Dec 2013 05:39:10 +0000 prabodh_iitk 4180@http://www.k-wave.org/forum/ <p>Thank you for the reply Sir.It was very helpful.</p> <p>Regards<br /> Prabodh </p> http://www.k-wave.org/forum/topic/pressure-detected-and-its-frequency#post-4179 Fri, 06 Dec 2013 19:30:24 +0000 Bradley Treeby 4179@http://www.k-wave.org/forum/ <p>Hi Prabodh,</p> <p>The pressure recorded at the sensor is the acoustic pressure, in units of Pascals. You can examine the frequency content of your recorded signals using the <a href="http://www.k-wave.org/documentation/spect.php">spect</a> function. If you are performing photoacoustic simulations (i.e., using <code>source.p0</code>), the frequency content will depend on the size and smoothness of the initial pressure distribution. If you are performing acoustic or ultrasound simulations (i.e., using <code>source.p</code> or <code>source.ux</code>, etc), the frequency content will depend on the frequency content of your source, in addition to the strength of any nonlinear effects.</p> <p>I hope that helps,</p> <p>Brad. </p> http://www.k-wave.org/forum/topic/pressure-detected-and-its-frequency#post-4177 Fri, 06 Dec 2013 12:38:25 +0000 prabodh_iitk 4177@http://www.k-wave.org/forum/ <p>Dear Dr. Treeby and Dr. Cox,</p> <p>I just wish to ensure, whether the pressure obtained at the detector is gauge pressure?<br /> Secondly, how do we know the frequency of pressure waves, being detected and what factors contribute to it, such that it lies in ultrasound domain?</p> <p>Thank you.</p> <p>Regards<br /> Prabodh </p>