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Subsurface thermal gradient spectrometry

  • US 5,900,632 A
  • Filed: 03/12/1997
  • Issued: 05/04/1999
  • Est. Priority Date: 03/12/1997
  • Status: Expired due to Fees
First Claim
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1. Method for spectroscopically analyzing a material utilizing a spectrometric instrument and a means for inducing a thermal gradient in said material, the method comprising the steps of:

  • calibrating said instrument;

    inducing said thermal gradient in said material;

    responsive to said inducing step, determining the surface emission from said material, utilizing said spectrometric instrument;

    further responsive to said inducing step, determining the reference intensity from said material, utilizing said spectrometric instrument;

    independent of optical pathlength, determining a parameter from said surface emission and said reference intensity correlating to a property of said material; and

    transmitting said parameter, as an electrical signal, for further processing.

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