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Title: Optical vibration detection spectral analysis assembly and method for detecting vibration in an object of interest

Abstract

A vibration detection assembly is described which includes an emitter of light which has object and reference beams, the object beam reflected off of a vibrating object of interest; and a photorefractive substance having a given response time and which passes the reflected object beam and the reference beam, the reference beam and the object beam interfering within the photorefractive substance to create a space charge field which develops within the response time of the photorefractive substance.

Inventors:
 [1];  [2]
  1. Los Alamos, NM
  2. Idaho Falls, ID
Issue Date:
Research Org.:
Idaho National Laboratory (INL), Idaho Falls, ID (United States)
OSTI Identifier:
871939
Patent Number(s):
5827971
Assignee:
Lockheed Martin Idaho Technologies Company (Idaho Falls, ID)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01H - MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
DOE Contract Number:  
AC07-94ID13223
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
optical; vibration; detection; spectral; analysis; assembly; method; detecting; described; emitter; light; reference; beams; beam; reflected; vibrating; photorefractive; substance; response; time; passes; interfering; create; space; charge; field; develops; beam reflected; spectral analysis; reference beam; response time; space charge; reference beams; optical vibration; charge field; vibration detection; active substance; analysis assembly; /73/356/359/

Citation Formats

Hale, Thomas C, and Telschow, Kenneth L. Optical vibration detection spectral analysis assembly and method for detecting vibration in an object of interest. United States: N. p., 1998. Web.
Hale, Thomas C, & Telschow, Kenneth L. Optical vibration detection spectral analysis assembly and method for detecting vibration in an object of interest. United States.
Hale, Thomas C, and Telschow, Kenneth L. Thu . "Optical vibration detection spectral analysis assembly and method for detecting vibration in an object of interest". United States. https://www.osti.gov/servlets/purl/871939.
@article{osti_871939,
title = {Optical vibration detection spectral analysis assembly and method for detecting vibration in an object of interest},
author = {Hale, Thomas C and Telschow, Kenneth L},
abstractNote = {A vibration detection assembly is described which includes an emitter of light which has object and reference beams, the object beam reflected off of a vibrating object of interest; and a photorefractive substance having a given response time and which passes the reflected object beam and the reference beam, the reference beam and the object beam interfering within the photorefractive substance to create a space charge field which develops within the response time of the photorefractive substance.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 1998},
month = {Thu Jan 01 00:00:00 EST 1998}
}

Works referenced in this record:

Photorefractive optical lock-in detector
journal, January 1991


Vibration modal analysis using all-optical photorefractive processing
conference, October 1996

  • Hale, Thomas C.; Telschow, Kenneth L.
  • SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, SPIE Proceedings
  • https://doi.org/10.1117/12.255496

Optical lock‐in vibration detection using photorefractive frequency domain processing
journal, October 1996


Optical Lock-in Vibration Detection Using Photorefractive Four-Wave Mixing
book, January 1989


Vibration detection using dynamic photorefractive gratings in KTN/KLTN crystals
journal, November 1992