METHODS AND SYSTEMS FOR MEASURING CONCENTRATIONS OF KNOWN COMPONENTS IN GAS SAMPLES USING ACOUSTIC RESONANCE
First Claim
1. A system (100) for measuring a concentration of a known component in a gas sample using an acoustic resonance technique, the system (100) comprising:
- a resonant chamber (110), comprising a wall (112), forming an interior (114), and an opening (116) extending through the wall (112) to the interior (114);
a sound generator (120), positioned at and acoustically coupled to the opening (116) of the resonant chamber (110) and configured to generate white noise and supply the white noise into the interior (114) of the resonant chamber (110); and
an audio sensor (140), positioned proximate to and in sound communication to the opening (116) and configured to measure an acoustic spectrum emitted from the interior (114) of the resonant chamber (110) through the opening.
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Accused Products
Abstract
Disclosed are methods and systems for measuring concentration of known components in gas samples using an acoustic resonance technique. A system includes a resonant chamber, a sound generator positioned at and acoustically coupled to an opening of the resonant chamber, and an audio sensor positioned proximate to and in sound communication to the opening and configured to measure an acoustic spectrum. During operation, the sound generator produces a white noise such that the soundwaves of the white noise passes through a gas sample positioned in the resonant chamber. As the soundwaves pass through the gas sample, the audio sensor monitors the frequency spectrum and identifies any resonant frequency that, if present, would correspond to a specific component and the concentration of this component. Specifically, the component concentration is determined from the frequency response.
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Citations
22 Claims
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1. A system (100) for measuring a concentration of a known component in a gas sample using an acoustic resonance technique, the system (100) comprising:
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a resonant chamber (110), comprising a wall (112), forming an interior (114), and an opening (116) extending through the wall (112) to the interior (114); a sound generator (120), positioned at and acoustically coupled to the opening (116) of the resonant chamber (110) and configured to generate white noise and supply the white noise into the interior (114) of the resonant chamber (110); and an audio sensor (140), positioned proximate to and in sound communication to the opening (116) and configured to measure an acoustic spectrum emitted from the interior (114) of the resonant chamber (110) through the opening. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method (400) for measuring a concentration of a known component in a gas sample using a system (100), comprising a resonant chamber (110), a sound generator (120), and an audio sensor (140), the method (400) comprising:
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receiving the gas sample into an interior (114) of the resonant chamber (110); generating white noise using the sound generator (120), positioned at and acoustically coupled to an opening (116) of the resonant chamber (110) such that the white noise propagates to the interior (114) of the resonant chamber (110); and capturing an acoustic spectrum using the audio sensor (140), positioned proximate to and in sound communication to the opening (116), wherein the acoustic spectrum represents interaction of the white noise with the gas sample received in the interior (114) of the resonant chamber (110) and corresponds to the concentration of the known component in the gas sample. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification