Generalized spatial filtering velocimetry and accelerometry for uniform and nonuniform objects

Stanley Pau, William J. Dallas

Research output: Contribution to journalArticle

10 Scopus citations

Abstract

We present a technique to measure velocity, acceleration, and higher order derivatives of motion using periodic and nonperiodic spatial filters. The technique can be applied using a single detector or an array of detectors. In one configuration, the velocity distribution of an object such as a fluid can be measured by imaging the object onto an array of detectors. In another configuration, multiple projections of an object are used to reconstruct a cross-sectional velocity distribution using a tomography algorithm. The advantages and disadvantages of our technique applied to uniform and spatially varying motions are described.

Original languageEnglish (US)
Pages (from-to)4713-4722
Number of pages10
JournalApplied optics
Volume48
Issue number24
DOIs
StatePublished - Aug 20 2009

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering

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