Method and apparatus for measuring particle motion optically

Details Method and apparatus for measuring particle motion optically Method and apparatus for measuring particle motion optically

2006-03-14

2006-03-14

Lee, Hwa (Andrew) (Department: 2877)

Optics: measuring and testing

By particle light scattering

C356S028000

Reexamination Certificate

active

07012688

ABSTRACT:
A method and apparatus for measuring particle motion using electromagnetic radiation uses beams of radiation modulated with a distinct frequency and/or phase. A particle traversing these beams scatters a portion of the radiation. Scattered radiation, which retains modulation information, is then detected, and a cross-correlation technique is used to quantify the particle's motion, for example, particle velocity.

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