Patent ID: 6237419
Filing Date: 2001-05-29
Classification: G01N,G10K

Abstract:
A method for designing an ultrasonic transducer to focus energy at the desired depth in a part with a non planar surface, the transducer projecting sound rays and having a radius, the method comprising the steps of:a. determining an ideal surface geometry of the transducer;b. adapting the determined ideal surface geometry to a nearest approximation circular profile for transducer fabrication without compromising focusing capability at a desired focal point;c. back-propagating rays from the transducer into the determined focal point;d. adjusting the radius of the transducer responsive to focus location of the transducer rays relative to the desired focal point; ande. repeating the determining, adapting, back-propagating and adjusting steps until the back-propagated rays are focused at the determined focal point.