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Title: Vibration sensing method and apparatus

Abstract

A method and apparatus for nondestructive evaluation of a structure is disclosed. Resonant audio frequency vibrations are excited in the structure to be evaluated and the vibrations are measured and characterized to obtain information about the structure. The vibrations are measured and characterized by reflecting a laser beam from the vibrating structure and directing a substantial portion of the reflected beam back into the laser device used to produce the beam which device is capable of producing an electric signal containing information about the vibration.

Inventors:
 [1]
  1. Idaho Falls, ID
Issue Date:
Research Org.:
EG & G Idaho Inc
OSTI Identifier:
866924
Patent Number(s):
4823601
Application Number:
07/070,763
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01M - TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES
DOE Contract Number:  
AC07-76ID01570
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
vibration; sensing; method; apparatus; nondestructive; evaluation; structure; disclosed; resonant; audio; frequency; vibrations; excited; evaluated; measured; characterized; obtain; information; reflecting; laser; beam; vibrating; directing; substantial; portion; reflected; device; produce; capable; producing; electric; signal; containing; laser device; nondestructive evaluation; electric signal; substantial portion; laser beam; reflected beam; obtain information; sensing method; vibration sensing; audio frequency; containing information; /73/

Citation Formats

Barna, Basil A. Vibration sensing method and apparatus. United States: N. p., 1989. Web.
Barna, Basil A. Vibration sensing method and apparatus. United States.
Barna, Basil A. Tue . "Vibration sensing method and apparatus". United States. https://www.osti.gov/servlets/purl/866924.
@article{osti_866924,
title = {Vibration sensing method and apparatus},
author = {Barna, Basil A},
abstractNote = {A method and apparatus for nondestructive evaluation of a structure is disclosed. Resonant audio frequency vibrations are excited in the structure to be evaluated and the vibrations are measured and characterized to obtain information about the structure. The vibrations are measured and characterized by reflecting a laser beam from the vibrating structure and directing a substantial portion of the reflected beam back into the laser device used to produce the beam which device is capable of producing an electric signal containing information about the vibration.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1989},
month = {4}
}