Methods and systems to analyze a gas-mixture
AssigneeGeneral Electric Company
InventorsRachit Sharma, Chayan Mitra, Vinayak Tilak
Life of this patent
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Abstract
A system is presented. The system includes an electromagnetic radiation source configured to generate a mode-matched electromagnetic radiation that irradiates a gas-mixture filled in a gas compartment at a determined pressure ‘P’ bars, an intensity enhancement mechanism that internally reflects the mode-matched electromagnetic radiation a plurality of times to achieve an effective intensity ‘E’, of reflected electromagnetic radiation in a region of interest, that is ‘N’ times an intensity of the mode-matched electromagnetic radiation, and a detection subsystem that analyzes the gas-mixture based upon Raman scattered photons emitted from the region of interest, wherein a product of the ‘P’ and the ‘N’ is at least 30.
Claims19
A system, comprising:
- an electromagnetic radiation source configured to generate a mode-matched electromagnetic radiation that irradiates a gas-mixture filled in a gas compartment at a determined pressure ‘P’ of about 4.5 bars to 35 bars;
- an intensity enhancement mechanism that internally reflects the mode-matched electromagnetic radiation a plurality of times to achieve an effective intensity ‘E’, of reflected electromagnetic radiation in a region of interest, that is ‘N’ times an intensity of the mode-matched electromagnetic radiation;
- and
- a detection subsystem that analyses the gas-mixture based upon Raman scattered photons emitted from the region of interest;
- wherein a product of the ‘P’ and the ‘N’ is at least 30.
A system, comprising:
- an electromagnetic radiation source configured to generate a mode-matched electromagnetic radiation that irradiates a gas-mixture filled in a gas compartment at a determined pressure ‘P’ of about 4.5 bars to 35 bars;
- an intensity enhancement mechanism that internally reflects the mode-matched electromagnetic radiation a plurality of times, ‘N’ in a region of interest to achieve an effective intensity ‘E’, of reflected electromagnetic radiation, that is the ‘N’ times the intensity of the mode-matched electromagnetic radiation;
- and
- a detection subsystem that analyses the gas-mixture based upon Raman scattered photons emitted from the region of interest;
- wherein a product of the ‘P’ and the ‘N’ is at least 30.
A gas-mixture analyzer, comprising:
- an electromagnetic radiation source configured to generate mode-matched electromagnetic radiation that is directed into a gas compartment having a gas-mixture, wherein the gas compartment is at a pressure ‘P’ of about 4.5 bars to 35 bars;
- an intensity enhancement mechanism within the gas compartment that internally reflects the mode-matched electromagnetic radiation, by passing, overlapping and intersecting a plurality of times through a region of interest to achieve an effective intensity ‘E’, of reflected electromagnetic radiation in the region of interest, that is ‘N’ times an intensity of the mode-matched electromagnetic radiation;
- and
- a detection subsystem that analyses the gas-mixture based upon Raman scattered photons emitted from the region of interest;
- wherein a product of the ‘P’ and the ‘N’ is at least 30.
A method for analyzing a gas-mixture, comprising:
- filling a gas-mixture into a gas compartment until it reaches a pressure ‘P’ of about 4.5 bars to 35 bars;
- internally reflecting mode-matched electromagnetic radiation in an intensity enhancement mechanism by passing, overlapping and intersecting, multiple times in a region of interest to achieve an effective intensity ‘E’, of reflected electromagnetic radiation in the region of interest, that is ‘N’ times the intensity of the mode-matched electromagnetic radiation;
- controlling the pressure ‘P’ of the gas-mixture and the number ‘N’ such that a product of the number ‘N’ and the pressure ‘P’ is at least 30;
- and
- analyzing the gas-mixture based upon the Raman scattered photons to determine at least one of a concentration of individual gases in the gas mixture and an energy content of the gas mixture.
Dependencies are inferred from the claim text.