Inventors:
John H. Gieske - Albuquerque NM
Dennis P. Roach - Albuquerque NM
Phillip D. Walkington - Albuquerque NM
Assignee:
Sandia Corporation - Albuquerque NM
International Classification:
G01N 2910
Abstract:
An ultrasonic pulse echo inspection apparatus and method for detecting structural failures. A focus lens is coupled to the transducer to focus the ultrasonic signal on an area to be inspected and a stop is placed in the focus lens to block selected ultrasonic waves. Other waves are not blocked and are transmitted through the structure to arrive at interfaces therein concurrently to produce an echo response with significantly less distortion.