Optical analysis system and elements to isolate spectral region
AssigneeHalliburton Energy Services, Inc.
InventorsMichael L. Myrick, Robert P. Freese, Luisa T. M. Profeta, Jonathan H. James, John C. Blackburn, Ryan J. Priore
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Abstract
A method of selecting components for a multivariate optical computing and analysis system to isolate a spectral region includes selecting a spectral region of interest; selecting a spectral element with a predetermined transmission characteristic to control a spectral range of an illumination source; illuminating a sample with the illumination source; and analyzing an optical frequency returned by the sample relative to the spectral region of interest.
Claims19
A method of selecting components for a multivariate optical computing and analysis system to isolate a spectral region, the method comprising:
- selecting a spectral region of interest;
- selecting a spectral element with a predetermined transmission characteristic to control a spectral range of an illumination source;
- the spectral element being made of a solid state material;
- illuminating a sample with the illumination source;
- analyzing an optical frequency returned by the sample relative to the spectral region of interest;
- and
- controlling at least one of a cut-on wavelength or a cut-off wavelength by altering a thickness of the solid state material.
A method of selecting components for a multivariate optical computing and analysis system to isolate a spectral region, the method comprising:
- selecting a spectral region of interest;
- selecting a spectral element with a predetennined transmission characteristic to control a spectral range of an illumination source;
- the spectral element being made of a chemical material;
- illuminating a sample with the illumination source;
- analyzing an optical frequency returned by the sample relative to the spectral region of interest;
- and
- deleting an absorbance of a gas from an optical spectrum of a sample, the gas being an interferent or the gas being ambient in the system.
A method of selecting components for a multivariate optical computing and analysis system to isolate a spectral region, the method comprising:
- selecting a spectral region of interest;
- selecting a spectral element with a predetermined transmission characteristic to control a spectral range of an illumination source;
- illuminating a sample with the illumination source;
- and
- analyzing an optical frequency returned by the sample relative to the spectral region of interest;
- wherein the spectral element is made of a mixture of materials.
A method of selecting components for a multivariate optical computing and analysis system to isolate a spectral region, the method comprising:
- selecting a spectral region of interest;
- selecting a spectral element with a predetermined transmission characteristic to control a spectral range of an illumination source;
- illuminating a sample with the illumination source;
- and
- analyzing an optical frequency returned by the sample relative to the spectral region of interest;
- wherein the spectral element is made of a synthetic material.
Dependencies are inferred from the claim text.