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:
- Issue Date:
- Research Org.:
- EG and G Idaho, Inc., Idaho Falls, ID (United States)
- OSTI Identifier:
- 6747366
- Patent Number(s):
- 6070763
- Assignee:
- INEL; ERA-14-001462; EDB-88-185917
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B05 - SPRAYING OR ATOMISING IN GENERAL B05B - SPRAYING APPARATUS
- 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}
}
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