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

Patent ·
OSTI ID:871939
 [1];  [2]
  1. Los Alamos, NM
  2. Idaho Falls, ID
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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.

Research Organization:
Idaho National Laboratory (INL), Idaho Falls, ID (United States)
DOE Contract Number:
AC07-94ID13223
Assignee:
Lockheed Martin Idaho Technologies Company (Idaho Falls, ID)
Patent Number(s):
US 5827971
OSTI ID:
871939
Country of Publication:
United States
Language:
English

References (7)

Photorefractive optical lock-in detector journal January 1991
Vibration modal analysis using all-optical photorefractive processing
  • 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
conference October 1996
Quantitative measurement of the vibrational amplitude and phase in photorefractive time‐average interferometry: A comparison with electronic speckle pattern interferometry journal July 1994
Optical lock‐in vibration detection using photorefractive frequency domain processing journal October 1996
Two-wave mixing and energy transfer in Bi_12SiO_20 crystals: application to image amplification and vibration analysis journal January 1981
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

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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
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