Acoustic Source Localiztion
For technical derivations of the acoustic source localization techniques outlined below, please refer to the PDF file attached.
Techniques for measuring the position of an acoustic source
Technique 1: Triangulation of the acoustic source with use of three sensors
Techinque 2: Minimization of Error Function
Location of the acoustic source is found by identifying the set of coordinates (x_0 and y_0) that minimize the error function
Technique 3: Interpolation of known time delays between sensor pairs
Location of sample impact points; sensors are located at each corner
Surface plot of the difference in arrival time of leading Lamb wave between one sensor and another
Contour plot of lines of constant time delay
