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Title: White light velocity interferometer

Abstract

The invention is a technique that allows the use of broadband and incoherent illumination. Although denoted white light velocimetry, this principle can be applied to any wave phenomenon. For the first time, powerful, compact or inexpensive sources can be used for remote target velocimetry. These include flash and arc lamps, light from detonations, pulsed lasers, chirped frequency lasers, and lasers operating simultaneously in several wavelengths. The technique is demonstrated with white light from an incandescent source to measure a target moving at 16 m/s.

Inventors:
 [1]
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  1. Oakland, CA
Issue Date:
Research Org.:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
OSTI Identifier:
872324
Patent Number(s):
5910839
Assignee:
Regents of University of California (Oakland, CA)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01B - MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS
G - PHYSICS G01 - MEASURING G01P - MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK
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DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
white; light; velocity; interferometer; technique; allows; broadband; incoherent; illumination; denoted; velocimetry; principle; applied; wave; phenomenon; time; powerful; compact; inexpensive; sources; remote; target; flash; lamps; detonations; pulsed; lasers; chirped; frequency; operating; simultaneously; wavelengths; demonstrated; incandescent; source; measure; moving; 16; pulsed lasers; pulsed laser; white light; lasers operating; frequency laser; coherent illumination; frequency lasers; velocity interferometer; wave phenomenon; incoherent illumination; denoted white; light velocity; light velocimetry; /356/

Citation Formats

Erskine, David J. White light velocity interferometer. United States: N. p., 1999. Web.
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Erskine, David J. White light velocity interferometer. United States.
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Erskine, David J. Fri . "White light velocity interferometer". United States. https://www.osti.gov/servlets/purl/872324.
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@article{osti_872324,
title = {White light velocity interferometer},
author = {Erskine, David J},
abstractNote = {The invention is a technique that allows the use of broadband and incoherent illumination. Although denoted white light velocimetry, this principle can be applied to any wave phenomenon. For the first time, powerful, compact or inexpensive sources can be used for remote target velocimetry. These include flash and arc lamps, light from detonations, pulsed lasers, chirped frequency lasers, and lasers operating simultaneously in several wavelengths. The technique is demonstrated with white light from an incandescent source to measure a target moving at 16 m/s.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {1}
}
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Works referenced in this record:

Multiple-line laser Doppler velocimetry
journal, January 1988

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