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Standardizing and calibrating a spectrometric instrument

  • US 5,303,165 A
  • Filed: 02/12/1992
  • Issued: 04/12/1994
  • Est. Priority Date: 02/12/1992
  • Status: Expired due to Term
First Claim
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1. A method of standardizing a spectrometric instrument having a characteristic intrinsic profile of spectral line shape for a hypothetically thin spectral line in each segment of a selected spectral range, each intrinsic profile having an associated intrinsic width, the instrument including a line source of at least one narrow spectral line in at least one selected segment of the spectral range, and each narrow spectral line having an associated line width substantially narrower than the intrinsic width for a corresponding selected segment, the method comprising:

  • specifying a target profile of spectral line shape for a hypothetically sharp spectral line in each selected segment, initially operating the instrument with the line source to produce a set of profile data for each narrow spectral line such that each set of profile data is representative of the intrinsic profile for a corresponding selected segment, computing a transformation filter for transforming each set of profile data to a corresponding target profile for each selected segment, and saving the transformation filter for future application to sample data.

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