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

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.
 [1];  [2]
  1. (Los Alamos, NM)
  2. (Idaho Falls, ID)
Issue Date:
OSTI Identifier:
Lockheed Martin Idaho Technologies Company (Idaho Falls, ID) INEEL
Patent Number(s):
US 5827971
Contract Number:
Research Org:
Idaho National Engineering and Environmental Laboratory, Idaho Falls, ID
Country of Publication:
United States
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/