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公开(公告)号：US10724976B2
公开(公告)日：2020-07-28
申请号：US15674305
申请日：2017-08-10
发明人： Benjamin S. Rogers , Christopher J. Dudley , Jesse D. Adams , Ralph G. Whitten , Alexander C. Woods , Vaughn N. Hartung
摘要： A system for determining one or more properties of one or more gases. The system comprises sensors configured to measure thermal conductivity and exothermic responses of a sample at multiple temperatures. Sensor responses to exposure to a gas sample at two or more temperatures are compensated and analyzed by a subsystem. The subsystem is configured to determine a thermal conductivity of the gas sample at each of the two or more temperatures and determine at least one component of the gas sample based at least in part on the thermal conductivity value of the sample at each of the two or more temperatures. Related systems and methods of determining one or more properties of a sample are also disclosed.
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公开(公告)号：US20220381731A1
公开(公告)日：2022-12-01
申请号：US17755057
申请日：2020-10-22
IPC分类号： G01N27/416 , G01N27/18 , G01N27/12
摘要： A method of calibrating a gas sensor comprises determining a sensitivity of a gas sensor to one or more conditions proximate the gas sensor, determining one or more initial calibration factors comprising a sensitivity of the gas sensor to one or more analytes of interest, determining a current sensitivity of the gas sensor to the one or more conditions proximate the gas sensor by measuring a response of the gas sensor while the one or more conditions proximate the gas sensor varies during operation of the gas sensor, and adjusting the one or more initial calibration factors of the gas sensor based, at least in part on the current sensitivity of the gas sensor to the one or more conditions proximate the gas sensor, and a relationship between the sensitivity of the gas sensor to the one or more analytes of interest to the sensitivity of the gas sensor to the one or more conditions proximate the gas sensor. Related gas detectors, related methods of compensating and calibrating the gas sensors, and methods of determining a functionality of the gas sensors are disclosed.
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公开(公告)号：US11226299B2
公开(公告)日：2022-01-18
申请号：US16947276
申请日：2020-07-27
发明人： Benjamin S. Rogers , Christopher J. Dudley , Jesse D. Adams , Ralph G. Whitten , Alexander C. Woods , Vaughn N. Hartung
IPC分类号： G01N25/18 , G01N11/16 , G01N29/32 , G01N27/18 , G01N29/02 , G01N27/12 , G01N29/036 , G01N27/16 , G01N29/12
摘要： A system for determining one or more properties of one or more gases. The system comprises sensors configured to measure thermal conductivity and exothermic responses of a sample at multiple temperatures. Sensor responses to exposure to a gas sample at two or more temperatures are compensated and analyzed by a subsystem. The subsystem is configured to determine a thermal conductivity of the gas sample at each of the two or more temperatures and determine at least one component of the gas sample based at least in part on the thermal conductivity value of the sample at each of the two or more temperatures. Related systems and methods of determining one or more properties of a sample are also disclosed.
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公开(公告)号：US20150253265A1
公开(公告)日：2015-09-10
申请号：US14425423
申请日：2013-09-13
IPC分类号： G01N25/48 , G01N33/543
CPC分类号： G01N25/4826 , G01N25/20 , G01N33/54373
摘要： Analysis instruments and sensors, particularly micro-electro mechanical sensor (MEMS) devices, for molecular analysis of chemicals and other materials, including, for example, polymers, drugs, nanomaterials, biological samples including proteins, and environmental samples including water suspected of contamination, and the like in vapor, liquid, and/or solid form.
摘要翻译： 分析仪器和传感器，特别是微电机械传感器（MEMS）装置，用于化学品和其他材料的分子分析，包括例如聚合物，药物，纳米材料，包括蛋白质的生物样品和包括怀疑污染的水的环境样品， 和类似物形式的蒸气，液体和/或固体形式。
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公开(公告)号：US20180174418A1
公开(公告)日：2018-06-21
申请号：US15891070
申请日：2018-02-07
发明人： Jesse D. Adams , Ralph G. Whitten
IPC分类号： G08B17/117 , G01N5/02 , G01N25/00 , G01N33/00 , G08B17/10 , G01N25/48 , G01N1/22 , G01N29/02
CPC分类号： G08B17/117 , G01N1/2214 , G01N5/02 , G01N25/00 , G01N25/4893 , G01N29/022 , G01N33/0047 , G01N2291/0256 , G08B17/10
摘要： A pre-smoke detector and system for use in early detection of developing fires whereby vapors of marker chemicals generated during the melting and/or smoldering of common household materials are detected before detection by conventional smoke detectors. Vapors resulting from heating and resultant vaporization of substances are detected as well as vapors resulting from their breakdown, decomposition, or pyrolysis during the pre-combustion stage. Conventional smoke detectors focus on particle detection and are most effective after a developing fire has produced smoke. To minimize false alarms caused by common household odors, the pre-smoke detectors focus on detecting medium temperature pyrolysis products using sensor coatings that can be consistent with a 10-year operational lifetime and multiple orthogonal detection processes. Since virtually all marker chemicals of interest for pre-smoke detection are heavier than air, a system is described that appropriately integrates with smoke detector alarm systems present in most homes.
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公开(公告)号：US09922517B2
公开(公告)日：2018-03-20
申请号：US15356282
申请日：2016-11-18
发明人： Jesse D. Adams , Ralph G. Whitten
IPC分类号： G08B17/117 , G08B17/10 , G01N5/02 , G01N25/00 , G01N25/48 , G01N33/00 , G01N29/02 , G01N1/22
CPC分类号： G08B17/117 , G01N1/2214 , G01N5/02 , G01N25/00 , G01N25/4893 , G01N29/022 , G01N33/0047 , G01N2291/0256 , G08B17/10
摘要： A pre-smoke detector and system for use in early detection of developing fires whereby vapors of marker chemicals generated during the melting and/or smoldering of common household materials are detected before detection by conventional smoke detectors. Vapors resulting from heating and resultant vaporization of substances are detected as well as vapors resulting from their breakdown, decomposition, or pyrolysis during the pre-combustion stage. Conventional smoke detectors focus on particle detection and are most effective after a developing fire has produced smoke. To minimize false alarms caused by common household odors, the pre-smoke detectors focus on detecting medium temperature pyrolysis products using sensor coatings that can be consistent with a 10-year operational lifetime and multiple orthogonal detection processes. Since virtually all marker chemicals of interest for pre-smoke detection are heavier than air, a system is described that appropriately integrates with smoke detector alarm systems present in most homes.
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公开(公告)号：US20180052124A1
公开(公告)日：2018-02-22
申请号：US15674305
申请日：2017-08-10
发明人： Benjamin S. Rogers , Christopher J. Dudley , Jesse D. Adams , Ralph G. Whitten , Alexander C. Woods , Vaughn N. Hartung
IPC分类号： G01N25/18
摘要： A system for determining one or more properties of one or more gases. The system comprises sensors configured to measure thermal conductivity and exothermic responses of a sample at multiple temperatures. Sensor responses to exposure to a gas sample at two or more temperatures are compensated and analyzed by a subsystem. The subsystem is configured to determine a thermal conductivity of the gas sample at each of the two or more temperatures and determine at least one component of the gas sample based at least in part on the thermal conductivity value of the sample at each of the two or more temperatures. Related systems and methods of determining one or more properties of a sample are also disclosed.
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公开(公告)号：US20170153193A1
公开(公告)日：2017-06-01
申请号：US15428853
申请日：2017-02-09
IPC分类号： G01N25/48
CPC分类号： G01N25/4826 , G01N25/20 , G01N33/54373
摘要： Analysis instruments and sensors, particularly micro-electro mechanical sensor (MEMS) devices, for molecular analysis of chemicals and other materials, including, for example, polymers, drugs, nanomaterials, biological samples including proteins, and environmental samples including water suspected of contamination, and the like in vapor, liquid, and/or solid form.
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公开(公告)号：US10453321B2
公开(公告)日：2019-10-22
申请号：US15891070
申请日：2018-02-07
发明人： Jesse D. Adams , Ralph G. Whitten
IPC分类号： G08B17/117 , G08B17/10 , G01N5/02 , G01N25/00 , G01N25/48 , G01N33/00 , G01N29/02 , G01N1/22
摘要： A pre-smoke detector and system for use in early detection of developing fires whereby vapors of marker chemicals generated during the melting and/or smoldering of common household materials are detected before detection by conventional smoke detectors. Vapors resulting from heating and resultant vaporization of substances are detected as well as vapors resulting from their breakdown, decomposition, or pyrolysis during the pre-combustion stage. Conventional smoke detectors focus on particle detection and are most effective after a developing fire has produced smoke. To minimize false alarms caused by common household odors, the pre-smoke detectors focus on detecting medium temperature pyrolysis products using sensor coatings that can be consistent with a 10-year operational lifetime and multiple orthogonal detection processes. Since virtually all marker chemicals of interest for pre-smoke detection are heavier than air, a system is described that appropriately integrates with smoke detector alarm systems present in most homes.
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公开(公告)号：US09625401B2
公开(公告)日：2017-04-18
申请号：US14425423
申请日：2013-09-13
IPC分类号： G01N27/00 , G01N25/48 , G01N25/20 , G01N33/543
CPC分类号： G01N25/4826 , G01N25/20 , G01N33/54373
摘要： Analysis instruments and sensors, particularly micro-electro mechanical sensor (MEMS) devices, for molecular analysis of chemicals and other materials, including, for example, polymers, drugs, nanomaterials, biological samples including proteins, and environmental samples including water suspected of contamination, and the like in vapor, liquid, and/or solid form.
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