Non-contact measurements of ultrasonic waves on paper webs using a photorefractive interferometer
Abstract
An apparatus and method for non-contact measurement of ultrasonic waves on moving paper webs employs a photorefractive interferometer. The photorefractive interferometer employs an optical head in which the incident beam and reflected beam are coaxial, thus enabling detection of both in-plane and out-of-plane waves with a single apparatus. The incident beam and reference beams are focused into a line enabling greater power to be used without damaging the paper.
- Inventors:
-
- Smyrna, GA
- Atlanta, GA
- Issue Date:
- Research Org.:
- Institute of Paper Science and Technology, Inc. (Atlanta, GA)
- OSTI Identifier:
- 873224
- Patent Number(s):
- 6115127
- Assignee:
- Institute of Paper Science and Technology (Atlanta, GA)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01B - MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS
G - PHYSICS G01 - MEASURING G01H - MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- DOE Contract Number:
- FC07-97ID13578
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- non-contact; measurements; ultrasonic; waves; paper; webs; photorefractive; interferometer; apparatus; method; measurement; moving; employs; optical; head; incident; beam; reflected; coaxial; enabling; detection; in-plane; out-of-plane; single; reference; beams; focused; line; power; damaging; ultrasonic wave; paper web; plane wave; reference beam; ultrasonic waves; incident beam; reflected beam; photorefractive interferometer; reference beams; non-contact measurement; paper webs; /356/
Citation Formats
Brodeur, Pierre H, and Lafond, Emmanuel F. Non-contact measurements of ultrasonic waves on paper webs using a photorefractive interferometer. United States: N. p., 2000.
Web.
Brodeur, Pierre H, & Lafond, Emmanuel F. Non-contact measurements of ultrasonic waves on paper webs using a photorefractive interferometer. United States.
Brodeur, Pierre H, and Lafond, Emmanuel F. Sat .
"Non-contact measurements of ultrasonic waves on paper webs using a photorefractive interferometer". United States. https://www.osti.gov/servlets/purl/873224.
@article{osti_873224,
title = {Non-contact measurements of ultrasonic waves on paper webs using a photorefractive interferometer},
author = {Brodeur, Pierre H and Lafond, Emmanuel F},
abstractNote = {An apparatus and method for non-contact measurement of ultrasonic waves on moving paper webs employs a photorefractive interferometer. The photorefractive interferometer employs an optical head in which the incident beam and reflected beam are coaxial, thus enabling detection of both in-plane and out-of-plane waves with a single apparatus. The incident beam and reference beams are focused into a line enabling greater power to be used without damaging the paper.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {1}
}
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