Vibration sensing method and apparatus
Abstract
A method and apparatus for nondestructive evaluation of a structure are 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:
- OSTI Identifier:
- 7266867
- Patent Number(s):
- 4823601
- Application Number:
- PPN: US 7-070763
- Assignee:
- Dept. of Energy, Washington, DC (United States)
- DOE Contract Number:
- AC07-76ID01570
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 7 Jul 1987
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING; MECHANICAL STRUCTURES; NONDESTRUCTIVE TESTING; LASER RADIATION; MEASURING METHODS; MECHANICAL VIBRATIONS; ELECTROMAGNETIC RADIATION; MATERIALS TESTING; RADIATIONS; TESTING; 420500* - Engineering- Materials Testing
Citation Formats
Barna, B A. Vibration sensing method and apparatus. United States: N. p., 1989.
Web.
Barna, B A. Vibration sensing method and apparatus. United States.
Barna, B A. Tue .
"Vibration sensing method and apparatus". United States.
@article{osti_7266867,
title = {Vibration sensing method and apparatus},
author = {Barna, B A},
abstractNote = {A method and apparatus for nondestructive evaluation of a structure are 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 = {1989},
month = {4}
}
Search for the full text at the U.S. Patent and Trademark Office
Note: You will be redirected to the USPTO site, which may require a pop-up blocker to be deactivated to view the patent. If so, you will need to manually turn off your browser's pop-up blocker, typically found within the browser settings. (See DOE Patents FAQs for more information.)
Save to My Library
You must Sign In or Create an Account in order to save documents to your library.