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Spectroscopic methods for component particle analysis

  • US 7,595,878 B2
  • Filed: 03/28/2005
  • Issued: 09/29/2009
  • Est. Priority Date: 10/13/2000
  • Status: Active Grant
First Claim
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1. A method of determining a geometric property of a particle of a substance in a sample, the method comprising:

  • irradiating the sample;

    tuning an imaging spectrometer over a range of wavelengths to generate an infrared image of the sample at a wavelength characteristic of the substance;

    applying to the infrared image of the sample one or more of the following;

    a univariate image processing technique, and a multivariate image processing technique to thereby generate a two-dimensional image or a three-dimensional image;

    measuring the geometric property of the particle of the substance in the sample using the two-dimensional image or the three-dimensional image to thereby generate a numerical value for the geometric property;

    and reporting said numerical value of the geometric property of the particle.

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