Photonic Doppler velocimetry lens array probe incorporating stereo imaging

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United States of America Patent

PATENT NO 9121861
SERIAL NO

14214234

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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddress
NATIONAL SECURITY TECHNOLOGIES LLC2621 LOSEE RD M/S NLV 019 NORTH LAS VEGAS NV 89030

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kaufman, Morris I Santa Fe, US 4 12
Malone, Robert M White Rock, US 4 12

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