Title: Optic probe for multiple angle image capture and optional stereo imaging

Abstract

A probe including a multiple lens array is disclosed to measure velocity distribution of a moving surface along many lines of sight. Laser light, directed to the moving surface is reflected back from the surface and is Doppler shifted, collected into the array, and then directed to detection equipment through optic fibers. The received light is mixed with reference laser light and using photonic Doppler velocimetry, a continuous time record of the surface movement is obtained. An array of single-mode optical fibers provides an optic signal to the multiple lens array. Numerous fibers in a fiber array project numerous rays to establish many measurement points at numerous different locations. One or more lens groups may be replaced with imaging lenses so a stereo image of the moving surface can be recorded. Imaging a portion of the surface during initial travel can determine whether the surface is breaking up.

Inventors:

Malone, Robert M.; Kaufman, Morris I.

Issue Date:

Tue Nov 29 00:00:00 EST 2016

Research Org.:

Nevada Test Site (NTS), Mercury, NV (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1333730

Patent Number(s):

9507024

Application Number:

14/822,676

Assignee:

National Security Technologies, LLC (Las Vegas, NV)

Patent Classifications (CPCs):

G - PHYSICS G01 - MEASURING G01J - MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT

G - PHYSICS G01 - MEASURING G01P - MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK

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G - PHYSICS G01 - MEASURING G01J - MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT

G01J7/00 - Measuring velocity of light

G - PHYSICS G01 - MEASURING G01P - MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK

G01P3/36 - Devices characterised by the use of optical means, e.g. using infra-red, visible, or ultra-violet light

G - PHYSICS G01 - MEASURING G01S - RADIO DIRECTION-FINDING

G01S17/58 - Velocity or trajectory determination systems
G01S17/89 - for mapping or imaging
G01S7/4812 - {transmitted and received beams following a coaxial path}
G01S7/4813 - {Housing arrangements}
G01S7/4818 - {using optical fibres}
G01S7/4917 - {superposing optical signals in a photodetector, e.g. optical heterodyne detection}

G - PHYSICS G02 - OPTICS G02B - OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS

G02B6/322 - {and having centering means being part of the lens for the self-positioning of the lightguide at the focal point, e.g. holes, wells, indents, nibs}
G02B6/34 - utilising prism or grating {

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DOE Contract Number:  

AC52-06NA25946

Resource Type:

Patent

Resource Relation:

Patent File Date: 2015 Aug 10

Country of Publication:

United States

Language:

English

Subject:

47 OTHER INSTRUMENTATION; 42 ENGINEERING