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Title: Method and apparatus of spectro-acoustically enhanced ultrasonic detection for diagnostics

Abstract

An apparatus for detecting a discontinuity in a material includes a source of electromagnetic radiation has a wavelength and an intensity sufficient to induce an enhancement in contrast between a manifestation of an acoustic property in the material and of the acoustic property in the discontinuity, as compared to when the material is not irradiated by the electromagnetic radiation. An acoustic emitter directs acoustic waves to the discontinuity in the material. The acoustic waves have a sensitivity to the acoustic property. An acoustic receiver receives the acoustic waves generated by the acoustic emitter after the acoustic waves have interacted with the material and the discontinuity. The acoustic receiver also generates a signal representative of the acoustic waves received by the acoustic receiver. A processor, in communication with the acoustic receiver and responsive to the signal generated by the acoustic receiver, is programmed to generate informational output about the discontinuity based on the signal generated by the acoustic receiver.

Inventors:
 [1];  [2]
  1. (Knoxville, TN)
  2. (Raleigh, NC)
Issue Date:
Research Org.:
LOCKHEED MARTIN ENERGY RES COR
OSTI Identifier:
873653
Patent Number(s):
6212421
Assignee:
Lockheed Martin Energy Research Corp. (Oak Ridge, TN) ORNL
DOE Contract Number:  
AC05-96OR22464
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; apparatus; spectro-acoustically; enhanced; ultrasonic; detection; diagnostics; detecting; discontinuity; material; source; electromagnetic; radiation; wavelength; intensity; sufficient; induce; enhancement; contrast; manifestation; acoustic; property; compared; irradiated; emitter; directs; waves; sensitivity; receiver; receives; generated; interacted; generates; signal; representative; received; processor; communication; responsive; programmed; generate; informational; output; based; waves generated; acoustic receiver; signal representative; acoustic wave; electromagnetic radiation; signal generated; acoustic waves; rate information; ultrasonic detection; acoustically enhanced; acoustically enhance; /600/

Citation Formats

Vo-Dinh, Tuan, and Norton, Stephen J. Method and apparatus of spectro-acoustically enhanced ultrasonic detection for diagnostics. United States: N. p., 2001. Web.
Vo-Dinh, Tuan, & Norton, Stephen J. Method and apparatus of spectro-acoustically enhanced ultrasonic detection for diagnostics. United States.
Vo-Dinh, Tuan, and Norton, Stephen J. Mon . "Method and apparatus of spectro-acoustically enhanced ultrasonic detection for diagnostics". United States. https://www.osti.gov/servlets/purl/873653.
@article{osti_873653,
title = {Method and apparatus of spectro-acoustically enhanced ultrasonic detection for diagnostics},
author = {Vo-Dinh, Tuan and Norton, Stephen J.},
abstractNote = {An apparatus for detecting a discontinuity in a material includes a source of electromagnetic radiation has a wavelength and an intensity sufficient to induce an enhancement in contrast between a manifestation of an acoustic property in the material and of the acoustic property in the discontinuity, as compared to when the material is not irradiated by the electromagnetic radiation. An acoustic emitter directs acoustic waves to the discontinuity in the material. The acoustic waves have a sensitivity to the acoustic property. An acoustic receiver receives the acoustic waves generated by the acoustic emitter after the acoustic waves have interacted with the material and the discontinuity. The acoustic receiver also generates a signal representative of the acoustic waves received by the acoustic receiver. A processor, in communication with the acoustic receiver and responsive to the signal generated by the acoustic receiver, is programmed to generate informational output about the discontinuity based on the signal generated by the acoustic receiver.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2001},
month = {1}
}

Patent:

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