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:
-
- Las Cruces, NM
- Ammon, ID
- 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)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01F - MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- 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}
}
Works referenced in this record:
Application of pulse‐echo ultrasonics to locate the solid/liquid interface during solidification and melting of steel and other metals
journal, December 1985
- Parker, R. L.; Manning, J. R.; Peterson, N. C.
- Journal of Applied Physics, Vol. 58, Issue 11