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Title: Ultrasonic differential measurement

Abstract

A method and apparatus for ultrasonic resonance testing of an object is shown and described. Acoustic vibrations are applied to an object at a plurality of frequencies. Measurements of the object's vibrational response are made simultaneously at different locations on said object. The input frequency is stepped by using small frequency changes over a predetermined range. There is a pause interval or ring delay which permits the object to reach a steady state resonance before a measurement is taken.

Inventors:
 [1];  [2]
  1. Albuquerque, NM
  2. Santa Fe, NM
Issue Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM
OSTI Identifier:
869844
Patent Number(s):
5408880
Assignee:
Quatro Corporation (Albuquerque, NM)
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
ultrasonic; differential; measurement; method; apparatus; resonance; testing; shown; described; acoustic; vibrations; applied; plurality; frequencies; measurements; vibrational; response; simultaneously; locations; input; frequency; stepped; changes; predetermined; range; pause; interval; delay; permits; reach; steady; predetermined range; ultrasonic resonance; acoustic vibrations; frequency change; acoustic vibration; differential measurement; /73/

Citation Formats

Rhodes, George W, and Migliori, Albert. Ultrasonic differential measurement. United States: N. p., 1995. Web.
Rhodes, George W, & Migliori, Albert. Ultrasonic differential measurement. United States.
Rhodes, George W, and Migliori, Albert. Sun . "Ultrasonic differential measurement". United States. https://www.osti.gov/servlets/purl/869844.
@article{osti_869844,
title = {Ultrasonic differential measurement},
author = {Rhodes, George W and Migliori, Albert},
abstractNote = {A method and apparatus for ultrasonic resonance testing of an object is shown and described. Acoustic vibrations are applied to an object at a plurality of frequencies. Measurements of the object's vibrational response are made simultaneously at different locations on said object. The input frequency is stepped by using small frequency changes over a predetermined range. There is a pause interval or ring delay which permits the object to reach a steady state resonance before a measurement is taken.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1995},
month = {1}
}

Patent:

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