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Spectroscopic system employing a plurality of data types

  • US 20020133073A1
  • Filed: 02/08/2002
  • Published: 09/19/2002
  • Est. Priority Date: 12/23/1998
  • Status: Abandoned Application
First Claim
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1. A method of determining a condition of a test specimen, said method comprising, identifying a plurality of first test specimens having a first known condition and observing from each of said first test specimens a first fluorescence spectrum characteristic of said first known condition, obtaining an average reflectance spectrum from said plurality of first test specimens, obtaining a reflectance spectrum from a second test specimen that is observed to produce a second fluorescence spectrum that is not characteristic of said first known condition, obtaining a reflectance spectrum residual by subtracting said average reflectance spectrum from said reflectance spectrum obtained from said second test specimen, and determining said condition of said second test specimen based at least in part on an amplitude of one or more features of said reflectance spectrum residual.

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