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公开(公告)号：US20240011928A1
公开(公告)日：2024-01-11
申请号：US17859874
申请日：2022-07-07
Applicant: General Electric Company
Inventor： Radislav Alexandrovich Potyrailo , Janell Marie Crowder
CPC classification number: G01N27/221 , G01N1/44 , G01N33/0027 , H05B3/02
Abstract: A system and a method for multi-gas sensing using dielectric excitation of a single sensing material operated at a single operating temperature. Contrary to conventional gas sensor designs, embodiments of the gas sensors disclosed herein implement a metal oxide semiconductor sensing material maintained at a constant temperature, wherein dielectric excitation responses of the sensing material are measured at this constant temperature while the sensing material is exposed to a fluid sample. The disclosed gas sensors and gas sensing methods unexpectedly provide desirable characteristics, such as enhanced multi-gas differentiation, while operating at the constant operating temperature. For example, by measuring dielectric excitation responses of using at least one gas sensing element at a single operating temperature, the disclosed gas sensors and gas sensing methods demonstrate superior multi-gas differentiation compared to other gas sensors and other gas sensing methods that rely on multiple resistance measurements performed at several different operating temperatures.
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公开(公告)号：US20240011900A1
公开(公告)日：2024-01-11
申请号：US17859904
申请日：2022-07-07
Applicant: General Electric Company
Inventor： Radislav Alexandrovich Potyrailo , Baokai Cheng , Aghogho Atemu Obi , Christopher Collazo-Davila , Richard Jean-Luc St. Pierre
IPC: G01N21/3504 , G01N33/00
CPC classification number: G01N21/3504 , G01N33/0006 , G01N2201/0221
Abstract: Gas sensors are disclosed having an on-board, low-power data processor that uses multivariable gas classification and/or gas quantitation models to perform on-board data processing to resolve two or more gases in a fluid sample. To reduce computational complexity, the gas sensor utilizes low-power-consumption multivariable data analysis algorithms, inputs from available on-board sensors of ambient conditions, inputs representing contextual data, and/or excitation responses of a gas sensing material to select suitable gas classification and/or gas quantitation models. The data processor can then utilize these gas classification and quantitation models, in combination with measured dielectric responses of a gas sensing material of the gas sensor, to determine classifications and/or concentrations of two or more gases in a fluid sample, while consuming substantially less power than would be consumed if a global comprehensive model were used instead. Thus, the data processor is utilized for linear, nonlinear, and non-monotonic multivariate regressions.
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公开(公告)号：US11867676B2
公开(公告)日：2024-01-09
申请号：US16812613
申请日：2020-03-09
Applicant: General Electric Company
IPC: G01N33/00
CPC classification number: G01N33/0031 , G01N33/0006
Abstract: A multi-gas sensing system includes a sensing circuit comprising one or more sensing elements. Each sensing element includes a sensing material configured to detect at least one gas analyte. A management circuit is configured to excite the sensing elements with an alternating current at at least one predetermined frequency. The management circuit measures one or more electrical responses of the sensing elements responsive to exciting the sensing elements with the alternating current. The management circuit determines one or more characteristics of the sensing circuit. One or more processors receive the electrical responses of the sensing elements and the characteristics of the sensing circuit. The one or more processors determine a concentration of the at least one gas analyte based on the electrical responses of the sensing elements and the characteristics of the sensing circuit.
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公开(公告)号：US11674918B2
公开(公告)日：2023-06-13
申请号：US17715693
申请日：2022-04-07
Applicant: GENERAL ELECTRIC COMPANY
CPC classification number: G01N27/123 , G01N27/226 , G01N27/228
Abstract: A monolithic gas-sensing chip assembly for sensing a gas analyte includes a sensing material to detect the gas analyte, a sensing system including a resistor-capacitor electrical circuit, and a heating element. A sensing circuit measures an electrical response of the sensing system to an alternating electrical current applied to the sensing system at (a) one or more different frequencies, or (b) one or more different resistor-capacitor configurations of the system. One or more processors control a low detection range of the system to the gas, a high detection range of the system to the gas, a linearity of a response of the system to the gas, a dynamic range of measurements of the gas by the system, a rejection of interfering gas analytes by the system, a correction for aging or poisoning of the system, or a rejection of ambient interferences that may affect the electrical response of the system.
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公开(公告)号：US20220229005A1
公开(公告)日：2022-07-21
申请号：US17715693
申请日：2022-04-07
Applicant: GENERAL ELECTRIC COMPANY
Abstract: A monolithic gas-sensing chip assembly for sensing a gas analyte includes a sensing material to detect the gas analyte, a sensing system including a resistor-capacitor electrical circuit, and a heating element. A sensing circuit measures an electrical response of the sensing system to an alternating electrical current applied to the sensing system at (a) one or more different frequencies, or (b) one or more different resistor-capacitor configurations of the system. One or more processors control a low detection range of the system to the gas, a high detection range of the system to the gas, a linearity of a response of the system to the gas, a dynamic range of measurements of the gas by the system, a rejection of interfering gas analytes by the system, a correction for aging or poisoning of the system, or a rejection of ambient interferences that may affect the electrical response of the system.
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Patent Agency Ranking
公开(公告)号：US20210278384A1
公开(公告)日：2021-09-09
申请号：US16812613
申请日：2020-03-09
Applicant: General Electric Company
IPC: G01N33/00
Abstract: A multi-gas sensing system includes a sensing circuit comprising one or more sensing elements. Each sensing element includes a sensing material configured to detect at least one gas analyte. A management circuit is configured to excite the sensing elements with an alternating current at at least one predetermined frequency. The management circuit measures one or more electrical responses of the sensing elements responsive to exciting the sensing elements with the alternating current. The management circuit determines one or more characteristics of the sensing circuit. One or more processors receive the electrical responses of the sensing elements and the characteristics of the sensing circuit. The one or more processors determine a concentration of the at least one gas analyte based on the electrical responses of the sensing elements and the characteristics of the sensing circuit.
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公开(公告)号：US20210109049A1
公开(公告)日：2021-04-15
申请号：US16600520
申请日：2019-10-13
Applicant: General Electric Company
Inventor： Radislav Alexandrovich Potyrailo
Abstract: A gas sensing assembly includes a sensing material to be placed in contact with a fluid sample, electrodes coupled with the sensing material that apply an electric field to the sensing material across the electrodes, a heating element that controls a temperature of the sensing material while the sensing material is in contact with the fluid sample, and sensing circuitry to control application of the electric field to the sensing material via the electrodes at an alternating current frequency range in the presence of an uncontrolled ambient temperature and at an elevated alternating current frequency range. The sensing circuitry measures one or more electrical responses of the sensing material responsive to applying the electric field at the alternating current frequency range and at the elevated alternating current frequency range. The sensing circuitry detects presence of a gas in the fluid sample based on the one or more electrical responses.
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公开(公告)号：US20210080381A1
公开(公告)日：2021-03-18
申请号：US16573721
申请日：2019-09-17
Applicant: General Electric Company
Abstract: A method of forming an optical transmission flow cell that includes forming a fluid pathway cavity though a housing, and forming an optical pathway cavity through the housing and through the fluid pathway cavity, the optical pathway cavity configured to receive an optical fiber to emit light through the fluid pathway cavity. Material is added at a transition between the optical pathway cavity and fluid pathway cavity to form a surface at the transition configured to prevent formation of air pockets within fluid in the optical pathway cavity.
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公开(公告)号：US20200345300A1
公开(公告)日：2020-11-05
申请号：US16400146
申请日：2019-05-01
Applicant: General Electric Company
Inventor： Radislav Alexandrovich Potyrailo , Richard St. Pierre , Bruce Courtney Amm , Aghogho Atemu Obi
IPC: A61B5/00
Abstract: A sensor system includes a first sensor to detect environmental conditions of an environment in operational contact with a subject, a second sensor to detect physiological parameters of the subject in operational contact with an asset, and a control unit comprising one or more processors communicatively coupled with the first sensor and the second sensor. The processors receive a first signal from the first sensor indicative of the environmental conditions, and receive a second signal from the second sensor indicative of the physiological parameters of the subject, and determine a relation between the environmental conditions and the physiological parameters based on the first signal and the second signal. The processors determine a responsive action of the asset based on the first signal indicative of the environmental conditions of the environment or the second signal indicative of the physiological parameters of the subject in operational contact with the asset.
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公开(公告)号：US10746680B2
公开(公告)日：2020-08-18
申请号：US15060193
申请日：2016-03-03
Applicant: General Electric Company
Inventor： Radislav Alexandrovich Potyrailo , Daniel White Sexton , Steven Y. Go
Abstract: A sensor system includes a multi-frequency sensor assembly including a single sensor body housing with a sensing region circuit and a sensor reader disposed in the sensor body. The sensor body is configured to be in operational contact with a fluid. The sensing region circuit is configured to generate different electric fields having different frequencies in the fluid. The sensor reader includes one or more processors configured to examine one or more impedance responses of the sensing region circuit at different frequencies and to determine one or more properties of the fluid based on the one or more impedance responses that are examined.
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