GAS-SENSITIVE HALL DEVICE
    1.
    发明申请

    公开(公告)号:US20170082581A1

    公开(公告)日:2017-03-23

    申请号:US15247336

    申请日:2016-08-25

    CPC classification number: G01N27/74 G01N27/72 G01R33/072

    Abstract: A chemically sensitive Hall device is described herein. In accordance with one example of the present invention, a Hall device comprises a substrate and a chemically sensitive layer arranged on the substrate. The chemically sensitive layer is able to interact with atoms or molecules of a gaseous or liquid fluid. Force electrodes are connected to the chemically sensitive layer for feeding a sensor current through the chemically sensitive layer along a first direction. Sense electrodes are connected to the chemically sensitive layer to tap a Hall voltage at the chemically sensitive layer along a second direction. A back gate is arranged on or integrated in the substrate and is isolated from the chemically sensitive layer by an isolation layer.

    Gas-sensitive hall device
    2.
    发明授权

    公开(公告)号:US10082484B2

    公开(公告)日:2018-09-25

    申请号:US15247336

    申请日:2016-08-25

    CPC classification number: G01N27/74 G01N27/72 G01R33/072

    Abstract: A chemically sensitive Hall device is described herein. In accordance with one example of the present invention, a Hall device comprises a substrate and a chemically sensitive layer arranged on the substrate. The chemically sensitive layer is able to interact with atoms or molecules of a gaseous or liquid fluid. Force electrodes are connected to the chemically sensitive layer for feeding a sensor current through the chemically sensitive layer along a first direction. Sense electrodes are connected to the chemically sensitive layer to tap a Hall voltage at the chemically sensitive layer along a second direction. A back gate is arranged on or integrated in the substrate and is isolated from the chemically sensitive layer by an isolation layer.

    SENSOR AND SENSING METHOD
    3.
    发明申请
    SENSOR AND SENSING METHOD 审中-公开
    传感器和感应方法

    公开(公告)号:US20140260545A1

    公开(公告)日:2014-09-18

    申请号:US13834346

    申请日:2013-03-15

    CPC classification number: G01N27/14 G01N27/124 G01N33/006

    Abstract: A sensor is provided, which may include: a sensor layer containing a sensor material, wherein an electrical resistance of the sensor material changes upon adsorption of an adsorbate at the sensor material; a circuit electrically coupled to the sensor layer and configured to apply an electrical current to the sensor layer that heats the sensor layer.

    Abstract translation: 提供一种传感器,其可以包括:传感器层,其包含传感器材料,其中传感器材料的电阻在吸附物质在传感器材料上吸附时改变; 电耦合到所述传感器层并被配置为向传感器层施加电流以加热所述传感器层的电路。

    Gas-sensitive device
    4.
    发明授权

    公开(公告)号:US11921074B2

    公开(公告)日:2024-03-05

    申请号:US17453410

    申请日:2021-11-03

    CPC classification number: G01N27/221 G01N33/0009 G01N2027/222

    Abstract: In accordance with an embodiment, a gas-sensitive device includes a substrate structure, and a gas sensitive capacitor. The gas sensitive capacitor a first capacitor electrode in form of a gas-sensitive layer on a first main surface region of an insulation layer, and a second capacitor electrode in form of a buried conductive region below the insulation layer, so that the insulation layer is arranged between the first and second capacitor electrode. The gas-sensitive layer comprises a sheet impedance which changes in response to the adsorption or desorption of gas molecules.

    GAS SENSING DEVICE FOR SENSING ONE OR MORE GASES IN A MIXTURE OF GASES

    公开(公告)号:US20230288359A1

    公开(公告)日:2023-09-14

    申请号:US18176833

    申请日:2023-03-01

    CPC classification number: G01N27/12 G01N33/0027

    Abstract: A gas sensing device includes chemo-resistive gas sensors, wherein each of the gas sensors generates signals corresponding to concentrations of gases in a mixture of gases; a heating arrangement for heating gas sensors according to a periodic temperature profile; a preprocessing processor for receiving the signals from each of the gas sensors and for preprocessing the received signals to generate a preprocessed signal sample for each of the gas sensors for each period of the periodic temperature profile; a feature extraction processor configured for receiving the preprocessed signal samples and for extracting for each of the periods a set of feature values from the preprocessed signal samples received for the respective period; and a gas concentration processor for receiving sets of feature values.

    GAS-SENSITIVE HALL DEVICE
    6.
    发明申请

    公开(公告)号:US20190025385A1

    公开(公告)日:2019-01-24

    申请号:US16141394

    申请日:2018-09-25

    Abstract: A chemically sensitive Hall device having a substrate; a chemically sensitive layer arranged on the substrate and configured to operably interact with atoms or molecules of a gaseous or liquid fluid; first electrodes connected to the chemically sensitive layer and configured to feed a sensor current through the chemically sensitive layer along a first direction; and second electrodes connected to the chemically sensitive layer and configured to tap a Hall voltage at the chemically sensitive layer along a second direction.

    Gas-Sensitive Device
    7.
    发明申请

    公开(公告)号:US20220163475A1

    公开(公告)日:2022-05-26

    申请号:US17453410

    申请日:2021-11-03

    Abstract: In accordance with an embodiment, a gas-sensitive device includes a substrate structure, and a gas sensitive capacitor. The gas sensitive capacitor a first capacitor electrode in form of a gas-sensitive layer on a first main surface region of an insulation layer, and a second capacitor electrode in form of a buried conductive region below the insulation layer, so that the insulation layer is arranged between the first and second capacitor electrode. The gas-sensitive layer comprises a sheet impedance which changes in response to the adsorption or desorption of gas molecules.

    TEMPERATURE-REGULATED CHEMI-RESISTIVE GAS SENSOR

    公开(公告)号:US20230087922A1

    公开(公告)日:2023-03-23

    申请号:US17930220

    申请日:2022-09-07

    Abstract: A temperature-regulated chemi-resistive gas sensor includes a sensor surface including a chemically sensitive sensor layer including an active material for adsorbing and desorbing gas molecules of an analyte gas. A predetermined time-continuous periodic temperature profile is applied for periodically heating the sensor surface. An electrical sensor layer conductance signal is determined and time windows are applied to the sensor layer conductance signal. For one or more of the time windows, discrete frequency spectrum data of the sensor layer conductance signal is obtained, and a current gas concentration of the analyte gas is determined based on the obtained discrete frequency spectrum data.

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