Multi-detector gas identification system
First Claim
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1. A method for determining the presence of one or more specific chemicals in a sample of gas, the method comprising:
- receiving a first response signal characteristic of the presence or absence of at least one first chemical or group of chemicals in a sample of gas, the first response signal generated by a photoionization detector;
receiving a second response signal characteristic of the presence or absence of at least one second chemical or group of chemicals in the sample of gas, the second response signal generated by an ion mobility spectrometer;
receiving a third response signal characteristic of the present or absence of at least one third chemical or group of chemicals in a sample of gas, the third response signal generated by a chemical sensor array;
analyzing the first response signal to generate a first list of candidate chemicals for the sample of gas;
analyzing the second response signal to generate a second list of candidate chemicals for the sample of gas;
analyzing the third response signal to generate a third list of candidate chemicals for the sample of gas; and
causing a processor to fuse the first, second, and third lists of candidate chemicals to generate information indicative of the presence of one or more specific chemicals in the sample of gas.
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Abstract
A novel gas analysis system and method of identifying analytes in a gas sample are provided. The system uses multiple gas analysis technologies and uses the combined qualitative and quantitative data obtained from the multiple gas analysis technologies to analyze a gas sample.
11 Citations
29 Claims
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1. A method for determining the presence of one or more specific chemicals in a sample of gas, the method comprising:
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receiving a first response signal characteristic of the presence or absence of at least one first chemical or group of chemicals in a sample of gas, the first response signal generated by a photoionization detector; receiving a second response signal characteristic of the presence or absence of at least one second chemical or group of chemicals in the sample of gas, the second response signal generated by an ion mobility spectrometer; receiving a third response signal characteristic of the present or absence of at least one third chemical or group of chemicals in a sample of gas, the third response signal generated by a chemical sensor array; analyzing the first response signal to generate a first list of candidate chemicals for the sample of gas; analyzing the second response signal to generate a second list of candidate chemicals for the sample of gas; analyzing the third response signal to generate a third list of candidate chemicals for the sample of gas; and causing a processor to fuse the first, second, and third lists of candidate chemicals to generate information indicative of the presence of one or more specific chemicals in the sample of gas. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A non-transient computer-readable storage medium having computer executable instructions for determining the presence of one or more specific chemicals in a sample of gas, the computer executable instructions comprising:
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individually controlling operation of a photoionization detector, a ion mobility spectrometer, and a chemical sensor array to cause the photoionization detector to monitor a sample of gas to generate a first response signal characteristic of the presence or absence of at least one first chemical or group of chemicals in the sample of gas, to cause the ion mobility spectrometer to monitor the sample of gas to generate a second response signal characteristic of the presence or absence of at least one second chemical or group of chemicals in the sample of gas, and to cause the chemical sensor array to monitor the sample of gas to generate a third response signal characteristic of the presence or absence of at least one third chemical or group of chemicals in the sample of gas; analyzing the first response signal to generate a first list of candidate chemicals for the sample of gas; analyzing the second response signal to generate a second list of candidate chemicals for the sample of gas; analyzing the third response signal to generate a third list of candidate chemicals for the sample of gas; and fusing the first, second, and third lists of candidate chemicals, to generate information indicative of the presence of one or more specific chemicals in the sample of gas. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A system comprising:
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a plurality of gas analysis units configured to be in fluid communication with a common sample of gas, the plurality of gas analysis units comprising a photoionization detector configured to generate a first response signal characteristic of the presence or absence of one or more chemicals in the gas sample, an ion mobility spectrometer configured to generate a second response signal characteristic of the presence or absence of one or more chemicals in the gas sample, and a chemical sensor array configured to generate a third response signal characteristic of the presence or absence of one or more chemicals in the gas sample; and a processor configured to; analyze the first response signal to generate a first list of candidate chemicals for the sample of gas; analyze the second response signal to generate a second list of candidate chemicals for the sample of gas; analyze the third response signal to generate a third list of candidate chemicals for the sample of gas; and fuse the first, second, and third lists of candidate chemicals to generate information indicative of the presence of one or more specific chemicals in the sample of gas. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification