SENSOR ARRANGEMENT WITH AN ELECTROCHEMICAL SENSOR AND A TEMPERATURE SENSOR AND PROCESS USING SUCH A SENSOR ARRANGEMENT

    公开(公告)号:US20240011939A1

    公开(公告)日:2024-01-11

    申请号:US18344978

    申请日:2023-06-30

    摘要: A sensor arrangement (100) and a process analyze a gas for at least one predetermined component and includes an electrochemical sensor (10) with a measuring electrode (20) and a counter electrode (21). An electrolyte (28) is arranged between the electrodes (20, 21). The process is carried out using such a sensor arrangement. A contact segment (7) of an electrically conductive measuring element (6, 7) is in thermal and/or electrical contact with a measurement object (20) (measuring electrode, counter electrode, or electrical contact). A connection segment (6) of the measuring element connects the contact segment to a temperature sensor (9) spatially distanced from the measurement object. The temperature sensor directly or indirectly measures the temperature of the contact segment, particularly the temperature of the connection segment. Depending on this measurement result, the temperature of the measuring electrode and/or the temperature of the counter electrode is determined and optionally controlled.

    ELECTROCHEMICAL GAS SENSOR ASSEMBLY
    4.
    发明公开

    公开(公告)号:US20230194461A1

    公开(公告)日:2023-06-22

    申请号:US18165712

    申请日:2023-02-07

    摘要: Various example embodiments described herein relate to an electrochemical gas sensor. The electrochemical gas sensor can include a sensor cap having one or more solid features disposed on a surface of the sensor cap. The electrochemical gas sensor can include a counter electrode configured to generate a gas during use of the electrochemical gas sensor. The electrochemical gas sensor can include a vent assembly adapted to release at least a portion of the gas generated at the counter electrode out from the electrochemical gas sensor. The vent assembly can include a vent conduit and a vent membrane that defines a passage for the gas to flow from an extended portion of the counter electrode, to the vent conduit, via the vent membrane, so as to be vented from the electrochemical gas sensor.

    WATERLESS ELECTROCHEMICAL TRANSDERMAL ALCOHOL SENSOR AND WEARABLE TRANSDERMAL ALCOHOL SENSOR DEVICE

    公开(公告)号:US20190246958A1

    公开(公告)日:2019-08-15

    申请号:US15894255

    申请日:2018-02-12

    申请人: Giner, Inc.

    摘要: Waterless electrochemical transdermal alcohol sensor. In one embodiment, the sensor includes a proton exchange membrane imbibed with an imbibing liquid that includes at least one cationic substance that is liquid at room temperature. As examples, the cationic substance may be one or more ionic liquids with an imidazolium, phosphonium, ammonium, pyridinium, pyrrolidinium, or sulfonium backbone structure. The imbibing of the proton exchange membrane with the cationic substance obviates the need for the periodic addition of water to the electrochemical cell. The sensor additionally includes a sensing electrode, which is bonded to one side of the proton exchange membrane, and a counter electrode and a reference electrode, both of which are bonded to the opposite side of the proton exchange membrane. The sensor may be incorporated into a wearable transdermal alcohol sensor device, which, in turn, may be incorporated into a system for detecting transdermal alcohol.

    DETECTING BIOPOTENTIAL WITH AN IONIC VARISTOR

    公开(公告)号:US20180092562A1

    公开(公告)日:2018-04-05

    申请号:US15282926

    申请日:2016-09-30

    摘要: In various embodiments, methods and systems, of an ionic varistor system is provided. The ionic varistor system includes an electrolyte-membrane assembly having a liquid electrolyte that is enclosed in a solid electrolyte membrane. The ionic varistor system further includes conductive contacts operably coupled to the electrolyte-membrane assembly. The electrolytic-membrane assembly is operably coupled to an electrical potential surface. As the ionic concentration in the electrical potential surface is increased or decreased, some ions diffuse through the solid electrolyte membrane, causing the ions to mix with the liquid electrolyte to achieve an electrostatic equilibrium state that is thermally and mechanically stable. The liquid electrolyte and the diffused ions create an encapsulated ion channel in the electrolyte-membrane assembly. The electrical conductivity of the encapsulated ion channel increases as the ion concentration increases such that the complete electrolyte-membrane assembly produces electrical resistance. The ion concentration is measured as indicator of electrical potential of the electrical potential surface.