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Title: Method of noncontacting ultrasonic process monitoring

Abstract

A method of monitoring a material during processing comprising the steps of (a) shining a detection light on the surface of a material; (b) generating ultrasonic waves at the surface of the material to cause a change in frequency of the detection light; (c) detecting a change in the frequency of the detection light at the surface of the material; (d) detecting said ultrasonic waves at the surface point of detection of the material; (e) measuring a change in the time elapsed from generating the ultrasonic waves at the surface of the material and return to the surface point of detection of the material, to determine the transit time; and (f) comparing the transit time to predetermined values to determine properties such as, density and the elastic quality of the material.

Inventors:
 [1];  [2];  [3]
  1. Las Cruces, NM
  2. Ammon, ID
  3. Idaho Falls, ID
Issue Date:
Research Org.:
EG & G IDAHO INC
OSTI Identifier:
868235
Patent Number(s):
5103676
Assignee:
United States of America as represented by United States (Washington, DC)
DOE Contract Number:  
AC07-76ID01570
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; noncontacting; ultrasonic; process; monitoring; material; processing; comprising; steps; shining; detection; light; surface; generating; waves; change; frequency; detecting; measuring; time; elapsed; return; determine; transit; comparing; predetermined; values; properties; density; elastic; quality; ultrasonic wave; transit time; predetermined value; ultrasonic waves; predetermined values; determined values; processing comprising; /73/

Citation Formats

Garcia, Gabriel V, Walter, John B, and Telschow, Kenneth L. Method of noncontacting ultrasonic process monitoring. United States: N. p., 1992. Web.
Garcia, Gabriel V, Walter, John B, & Telschow, Kenneth L. Method of noncontacting ultrasonic process monitoring. United States.
Garcia, Gabriel V, Walter, John B, and Telschow, Kenneth L. Wed . "Method of noncontacting ultrasonic process monitoring". United States. https://www.osti.gov/servlets/purl/868235.
@article{osti_868235,
title = {Method of noncontacting ultrasonic process monitoring},
author = {Garcia, Gabriel V and Walter, John B and Telschow, Kenneth L},
abstractNote = {A method of monitoring a material during processing comprising the steps of (a) shining a detection light on the surface of a material; (b) generating ultrasonic waves at the surface of the material to cause a change in frequency of the detection light; (c) detecting a change in the frequency of the detection light at the surface of the material; (d) detecting said ultrasonic waves at the surface point of detection of the material; (e) measuring a change in the time elapsed from generating the ultrasonic waves at the surface of the material and return to the surface point of detection of the material, to determine the transit time; and (f) comparing the transit time to predetermined values to determine properties such as, density and the elastic quality of the material.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1992},
month = {1}
}

Patent:

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