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On-site analyzer

  • US 6,452,179 B1
  • Filed: 08/12/1999
  • Issued: 09/17/2002
  • Est. Priority Date: 08/14/1998
  • Status: Expired due to Term
First Claim
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1. A method of normalizing an intensity of and regularizing a sample spectrum of a fluid sample generated by a spectrometer having a pair of electrodes, the method comprising the steps of normalizing the intensity by:

  • selecting a background spectral feature from a plurality of spectral features of a background spectrum that is indicative at least in part of the composition of the electrodes wherein the background spectral feature has an intensity variation characteristic; and

    transforming the sample spectrum with respect to intensity in accordance with an intensity of said selected background spectral feature as indicated in the sample spectrum;

    the method comprising regularizing the intensity by;

    (A) defining a background spectrum having a plurality of spectral features indicative at least in part of the composition of the electrodes;

    (B) selecting at least a first background spectral feature from said plurality of spectral features wherein the first background spectral feature has a predetermined wavelength value associated therewith;

    (C) determining a measured wavelength value of the at least first background spectral feature in the sample spectrum; and

    (D) translating the sample spectrum with respect to wavelength in accordance with said predetermined wavelength value, said measured wavelength value, and a predetermined translation strategy.

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