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Method of calibration and real-time analysis of particulates

  • US 6,091,843 A
  • Filed: 09/03/1998
  • Issued: 07/18/2000
  • Est. Priority Date: 09/03/1998
  • Status: Expired due to Term
First Claim
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1. A method of analyzing particles for a plurality of species, comprising the steps of:

  • (a) providing;

    (i) a plurality of morphology types;

    (ii) a plurality of spectrum types;

    (iii) a plurality of target classes, each of said target classes corresponding to one of said morphology types and one of said spectrum types, and(iv) a relationship between a descriptor vector and a concentration vector, said descriptor vector including a plurality of elements, each element of said descriptor vector corresponding to a different one of said target classes, said concentration vector including a plurality of elements, each element of said concentration vector corresponding to a different one of the species;

    (b) acquiring a plurality of images of the particles, each of said images being acquired at a different wavelength;

    (c) inferring said descriptor vector from said plurality of images; and

    (d) using said relationship to infer said concentration vector from said descriptor vector.

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