Patent Number: 6,253,618

Title: Apparatus and method for synthetic phase tuning of acoustic guided waves

Abstract: A synthetic phase tuned multi-mode acoustic guided wave system and method activates at least one of a plurality of elements as a receiver or a transmitter and at least two of the elements as transmitters or receivers, respectively, and sequentially excites each of the transmitter elements for creating a train of acoustic guided waves which includes a selected mode, and shifts the acoustic guided waves of the selected mode sensed by the receivers by a period which is a function of the phase velocity of the selected mode and sums them to reinforce the selected mode.

Inventors: Wooh; Shi-Chang (Bedford, MA)

Assignee: Massachusetts Intitute of Technology

International Classification: G01N 29/34 (20060101); G01N 29/07 (20060101); G01N 29/04 (20060101); G01N 029/06 (); A61B 008/14 (); A61B 008/00 ()

Expiration Date: 07/03/2018