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Title: Ultrasonic inspection apparatus and method using a focused wave device

Patent ·
OSTI ID:873744

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.

Research Organization:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
DOE Contract Number:
AC04-94AL85000
Assignee:
Sandia Corporation (Albuquerque, NM)
Patent Number(s):
US 6234025
OSTI ID:
873744
Country of Publication:
United States
Language:
English

References (2)

Ultrasonic inspection technique for composite doubler/aluminum skin bond integrity for aircraft
  • Gieske, John H.; Roach, Dennis P.; Walkington, Phillip D.
  • Non-Destructive Evaluation Techniques for Aging Infrastructure & Manufacturing, SPIE Proceedings https://doi.org/10.1117/12.301516
conference March 1998
Development and validation of nondestructive inspection techniques for composite doubler repairs on commercial aircraft report May 1998