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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. 4 figs.

Inventors:
Publication Date:
Research Org.:
EG and G Idaho, Inc., Idaho Falls (USA)
OSTI Identifier:
6747366
Alternate Identifier(s):
OSTI ID: 6747366
Patent Number(s):
PATENTS-US-A6070763
Assignee:
INEL; ERA-14-001462; EDB-88-185917
DOE Contract Number:  
AC07-76ID01570
Resource Type:
Patent
Resource Relation:
Other Information: Portions of this document are illegible in microfiche products
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; NONDESTRUCTIVE TESTING; OPTICAL EQUIPMENT; DESIGN; ACOUSTIC TESTING; HELIUM-NEON LASERS; INVENTIONS; MECHANICAL VIBRATIONS; EQUIPMENT; GAS LASERS; LASERS; MATERIALS TESTING; TESTING 420500* -- Engineering-- Materials Testing

Citation Formats

Barna, B.A. Vibration sensing method and apparatus. United States: N. p., 1987. Web.
Barna, B.A. Vibration sensing method and apparatus. United States.
Barna, B.A. Tue . "Vibration sensing method and apparatus". United States.
@article{osti_6747366,
title = {Vibration sensing method and apparatus},
author = {Barna, B.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. 4 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1987},
month = {7}
}