Method of noncontacting ultrasonic process monitoring

Patent · Wed Jan 01 00:00:00 EST 1992

OSTI ID:868235

Garcia, Gabriel V ^[1]; Walter, John B ^[2]; Telschow, Kenneth L ^[3]

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1. Las Cruces, NM
2. Ammon, ID
3. Idaho Falls, ID

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.

• Research Organization: EG & G IDAHO INC
• DOE Contract Number: AC07-76ID01570
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 5103676
• OSTI ID: 868235
• Country of Publication: United States
• Language: English

Related Subjects

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
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