×

Infrared spectrometer

  • US 7,994,479 B2
  • Filed: 08/25/2008
  • Issued: 08/09/2011
  • Est. Priority Date: 11/30/2006
  • Status: Active Grant
First Claim
Patent Images

1. A method of isotopic ratio determination comprising the steps of:

  • (a) passing a first tunable IR laser beam through a first absorption cell;

    (b) passing a second tunable IR laser beam through a second absorption cell;

    (c) detecting the absorption due to a first sample contained within said first cell;

    (d) detecting the absorption due to a second sample contained within said second cell;

    (e) determining a ratio between said first and second samples for an isotope;

    (f) determining the isotopic ratio of said second sample using said ratio between said first and second samples; and

    (g) varying the wavelength of each tunable IR laser beam following each sequence of step (c) and (d).

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×