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AssigneeLightsense Technology, Inc.
InventorsJohn Coates, Wade Poteet, Terje Skotheim
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An optical spectral sensing system that provides a full-range mid-IR FTIR based measurement for gases and vapors. The system features a small interferometer module which is integrated with a sample cell and solid-state source, that has an optimized optical path matched to the intended concentration ranges for the gas/vapor measurements. The concentration ranges targeted are from % level for high targeted gas concentrations, as provided by short-pathlength gas cells, to parts-per-million (ppm) and for certain gases high parts-per-billion (ppb) for low trace targeted gas concentrations, provided by long-pathlength gas cells. The optics and opto-mechanical components selected are able to provide a spectral range of 400 cm−1 to 5000 cm−1, with nominal spectral resolutions of 4 cm−1 to 16 cm−1, with the potential to extend the resolution from 2 cm−1 out to 32 cm−1. The electronics are optimized to support both the range and spectral resolution based the use of a “universal” mid-IR detector.
A Mid-infrared fourier transform (FT-IR) sensor system to sense and analyze flowing gas, vapor, or fluid streams in a spectral range comprising:
A method to sense and analyze gases, vapors, or fluids with a mid-infrared spectrometer system comprising:
A miniature optical sensor system to sense and analyze flowing gas, vapor, or fluid streams in a spectral range comprising:
Dependencies are inferred from the claim text.