Resonant ultrasound spectroscopy
Abstract
A resonant ultrasound spectroscopy method provides a unique characterization of an object for use in distinguishing similar objects having physical differences greater than a predetermined tolerance. A resonant response spectrum is obtained for a reference object by placing excitation and detection transducers at any accessible location on the object. The spectrum is analyzed to determine the number of resonant response peaks in a predetermined frequency interval. The distribution of the resonance frequencies is then characterized in a manner effective to form a unique signature of the object. In one characterization, a small frequency interval is defined and stepped though the spectrum frequency range. Subsequent objects are similarly characterized where the characterizations serve as signatures effective to distinguish objects that differ from the reference object by more than the predetermined tolerance.
- Inventors:
-
- Santa Fe, NM
- Issue Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- OSTI Identifier:
- 868052
- Patent Number(s):
- 5062296
- Assignee:
- United States of America as represented by Department of Energy (Washington, DC)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- DOE Contract Number:
- W-7405-ENG-36
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- resonant; ultrasound; spectroscopy; method; provides; unique; characterization; distinguishing; similar; physical; differences; predetermined; tolerance; response; spectrum; obtained; reference; placing; excitation; detection; transducers; accessible; location; analyzed; determine; peaks; frequency; interval; distribution; resonance; frequencies; characterized; manner; effective; form; signature; defined; stepped; range; subsequent; similarly; characterizations; serve; signatures; distinguish; resonant response; resonant ultrasound; spectroscopy method; frequency range; method provides; predetermined frequency; method provide; predetermined tolerance; response spectrum; ultrasound spectroscopy; frequency interval; accessible location; /73/
Citation Formats
Migliori, Albert. Resonant ultrasound spectroscopy. United States: N. p., 1991.
Web.
Migliori, Albert. Resonant ultrasound spectroscopy. United States.
Migliori, Albert. Tue .
"Resonant ultrasound spectroscopy". United States. https://www.osti.gov/servlets/purl/868052.
@article{osti_868052,
title = {Resonant ultrasound spectroscopy},
author = {Migliori, Albert},
abstractNote = {A resonant ultrasound spectroscopy method provides a unique characterization of an object for use in distinguishing similar objects having physical differences greater than a predetermined tolerance. A resonant response spectrum is obtained for a reference object by placing excitation and detection transducers at any accessible location on the object. The spectrum is analyzed to determine the number of resonant response peaks in a predetermined frequency interval. The distribution of the resonance frequencies is then characterized in a manner effective to form a unique signature of the object. In one characterization, a small frequency interval is defined and stepped though the spectrum frequency range. Subsequent objects are similarly characterized where the characterizations serve as signatures effective to distinguish objects that differ from the reference object by more than the predetermined tolerance.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 01 00:00:00 EST 1991},
month = {Tue Jan 01 00:00:00 EST 1991}
}