A new method for object identification in ultrasonic systems using neural nets

This article describes an ultrasonic identification method which uses an array of sensors to recognise an object. The special feature of this particular set-up is that the object is located on a rotating platform in front of the array. In this way, taking advantage of the signal given by the ultrasonic echo from an orthogonal face and solving the typical problems associated with acoustic dispersion, useful information can be obtained for subsequent treatment. Very good results can then be obtained using artificial neural network techniques for data processing. This method not only permits the correct identification of the objects, but also facilitates their three dimensional reconstruction