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    Sensor interrogation with fast recovery
    2.
    发明授权
    Sensor interrogation with fast recovery 有权

    公开(公告)号：US10234417B2

    公开(公告)日：2019-03-19

    申请号：US15012919

    申请日：2016-02-02

    Applicant: MSA TECHNOLOGY, LLC

    Inventor： Brian Keith Davis ,  Michael Alvin Brown ,  Jerin Miller ,  Ryan Alan Sherry

    IPC: G01N27/407 ,  G01N27/404 ,  G01N33/00

    Abstract: A method of operating a sensor to detect an analyte in an environment, wherein the sensor includes a working electrode and circuitry in operative connection with the working electrode, includes performing a sensor interrogation cycle including applying electrical energy to the working electrode to generate a non-faradaic current, measuring a response to the generation of the non-faradaic current to determine a state of the sensor, and actively controlling the circuitry to dissipate the non-faradaic current.

    DETERMINATION OF SENSOR OPERATIONAL STATUS VIA SENSOR INTERROGATION
    5.
    发明公开
    DETERMINATION OF SENSOR OPERATIONAL STATUS VIA SENSOR INTERROGATION 审中-公开

    公开(公告)号：US20230258617A1

    公开(公告)日：2023-08-17

    申请号：US18140292

    申请日：2023-04-27

    Applicant: MSA TECHNOLOGY, LLC

    Inventor： Michael Alvin Brown ,  Brian Keith Davis

    IPC: G01N33/00

    CPC classification number: G01N33/0031 ,  G01N33/0006 ,  G01N33/0073 ,  G01N33/0016

    Abstract: A method of operating a gas sensor for a gas analyte including a sensing component includes, in a first mode, interrogating the sensor by periodically applying an electrical signal to the sensing component of the sensor, measuring sensor response to the electrical signal which is indicative of a sensitivity of the sensor each time the electrical signal is applied to the sensing component, determining whether one or more thresholds have been exceeded based upon the sensor response determined each time the electrical signal is applied to the sensing component, and entering a second mode, different from the first mode in analysis of the sensor response to the periodically applied electrical signals, if one or more thresholds are exceeded.

    Determination of sensor operational status via sensor interrogation
    6.
    发明授权
    Determination of sensor operational status via sensor interrogation 有权

    公开(公告)号：US11680933B2

    公开(公告)日：2023-06-20

    申请号：US16585684

    申请日：2019-09-27

    Applicant: MSA TECHNOLOGY, LLC

    Inventor： Michael Alvin Brown ,  Brian Keith Davis

    IPC: G01N33/00

    CPC classification number: G01N33/0031 ,  G01N33/0006 ,  G01N33/0073 ,  G01N33/0016

    Abstract: A method of operating a gas sensor for a gas analyte including a sensing component includes, in a first mode, interrogating the sensor by periodically applying an electrical signal to the sensing component of the sensor, measuring sensor response to the electrical signal which is indicative of a sensitivity of the sensor each time the electrical signal is applied to the sensing component, determining whether one or more thresholds have been exceeded based upon the sensor response determined each time the electrical signal is applied to the sensing component, and entering a second mode, different from the first mode in analysis of the sensor response to the periodically applied electrical signals, if one or more thresholds are exceeded.

    SENSOR INTERROGATION
    8.
    发明申请
    SENSOR INTERROGATION 有权

    公开(公告)号：US20210148849A1

    公开(公告)日：2021-05-20

    申请号：US17163710

    申请日：2021-02-01

    Applicant: MSA TECHNOLOGY, LLC

    Inventor： Towner Bennett Scheffler ,  Michael Alvin Brown ,  Brian Keith Davis

    IPC: G01N27/26 ,  G01N33/00 ,  G01N33/497 ,  G01N27/417

    Abstract: A system includes a system housing including an inlet, at least one gas sensor responsive to a first analyte gas other than oxygen within the system housing and in fluid connection with the inlet, and a sensor responsive to oxygen within the system housing and in fluid connection with the inlet. The sensor responsive to oxygen is formed to be chemically separate from the at least one gas sensor responsive to the first analyte gas other than oxygen. The sensor responsive to oxygen is responsive to a change in the concentration of oxygen arising from creation of a driving force in the vicinity of the inlet to provide an indication of a state of a transport path between the inlet of the system and the at least one gas sensor responsive to the first analyte gas other than oxygen.

    DETERMINATION OF SENSOR OPERATIONAL STATUS VIA SENSOR INTERROGATION
    10.
    发明申请
    DETERMINATION OF SENSOR OPERATIONAL STATUS VIA SENSOR INTERROGATION 有权

    公开(公告)号：US20250067714A1

    公开(公告)日：2025-02-27

    申请号：US18945653

    申请日：2024-11-13

    Applicant: MSA TECHNOLOGY, LLC

    Inventor： Michael Alvin Brown ,  Brian Keith Davis

    IPC: G01N33/00

    Abstract: A gas sensor device including a sensing component for detection of first gas analyte, electronic circuitry, and a communication system, wherein the electronic circuitry is configured to control operation of the gas sensor device and to measure a concentration of the first gas analyte based on a signal from the sensing component, the electronic circuitry further being configured to control operation of the gas sensor device based upon an operational status of the gas sensor device determined at least in part on information received via the communication system based upon output from at least one sensor located at a different position from the gas sensor device.

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