Inventors:
James P. Rogers - Redondo Beach CA, US
Abbas Mandvi - Brea CA, US
Chi Chin Lee - Riverside CA, US
Chhour M. Thong - Buena Park CA, US
Anthony Charles Buono - Santa Ana CA, US
Assignee:
THE BOEING COMPANY - Chicago IL
International Classification:
G01M 7/02, G01N 29/04
Abstract:
A method and apparatus for testing an object. A testing unit comprises a base structure, a contact structure, and piezoelectric transducers. The piezoelectric transducers are located between the base structure and the contact structure. A preload is present on the piezoelectric transducers.