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Method and apparatus for measuring the displacements of particle images for multiple exposure velocimetry

  • US 4,729,109 A
  • Filed: 05/29/1985
  • Issued: 03/01/1988
  • Est. Priority Date: 05/29/1985
  • Status: Expired due to Term
First Claim
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1. A method of measuring the displacement of compact images comprising the steps of:

  • (a) providing a source of spatially separated compact images, said images having intensity distribution;

    (b) compressing the images in separate, one-dimensional X and Y directions, including integrating the image intensity in said X and Y directions to produce respective electrical signals;

    (c) analyzing the electrical signals resulting from the separate one dimensional compressions to determine the X and Y image displacements respectively.

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