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Title: 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:
 [1];  [2]
  1. (Smyrna, GA)
  2. (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) IDO
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}
}

Patent:

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