Highly selective chemical and biological sensors
    81.
    发明授权
    Highly selective chemical and biological sensors 有权
    高选择性化学和生物传感器

    公开(公告)号:US09037418B2

    公开(公告)日:2015-05-19

    申请号:US14031951

    申请日:2013-09-19

    CPC classification number: G01N27/026 G01N27/02 G01N33/483 G01N33/48792

    Abstract: Methods and sensors for selective fluid sensing are provided. Each sensor includes a resonant inductor-capacitor-resistor (LCR) sensor that is coated with a sensing material. In order to collect data, an impedance spectrum is acquired over a relatively narrow frequency range, such as the resonant frequency range of the LCR circuit. A multivariate signature may be calculated from the acquired spectrum to discern the presence of certain fluids and/or fluid mixtures. The presence of fluids is detected by measuring the changes in dielectric, dimensional, resistance, charge transfer, and other changes in the properties of the materials employed by observing the changes in the resonant electronic properties of the circuit. By using a mathematical procedure, such as principal components analysis (PCA) and others, multiple fluids and mixtures can be detected in the presence of one another, even in a high humidity environment or an environment wherein one or more fluids has a substantially higher concentration (e.g. 10×, 1,000,000×) compared to other components in the mixture.

    Abstract translation: 提供了选择性流体感测的方法和传感器。 每个传感器包括一个涂有传感材料的谐振电感 - 电容电阻(LCR)传感器。 为了收集数据,在相对窄的频率范围(例如LCR电路的谐振频率范围)上获取阻抗谱。 可以从所获得的光谱计算多变量特征,以辨别某些流体和/或流体混合物的存在。 通过观察电路的谐振电子特性的变化来测量所用材料的介电性质,尺寸,电阻,电荷转移和其它变化的变化来检测流体的存在。 通过使用诸如主成分分析(PCA)等的数学方法,可以在彼此存在的情况下检测多种流体和混合物,即使在高湿度环境或其中一种或多种流体具有显着更高浓度的环境 (例如10×1,000,000×)与混合物中的其他成分相比。

    METHODS FOR DETECTION OF TARGET USING AFFINITY BINDING
    82.
    发明申请
    METHODS FOR DETECTION OF TARGET USING AFFINITY BINDING 审中-公开
    使用亲和绑定检测目标的方法

    公开(公告)号:US20150093820A1

    公开(公告)日:2015-04-02

    申请号:US14043887

    申请日:2013-10-02

    CPC classification number: G01N33/5308 G01N33/532 G01N33/58

    Abstract: A method of recovering a target from a sample is provided. The method comprises the adding a substrate coupled binding element to the sample comprising the target to form a substrate coupled binding element-target complex; precipitating the complex by changing one or more environmental conditions of the substrate and recovering the target and the substrate coupled binding-element under mild conditions.

    Abstract translation: 提供了从样品中回收靶的方法。 该方法包括将底物耦合的结合元件添加到包含靶的样品以形成基底耦合的结合元件 - 目标复合物; 通过改变衬底的一个或多个环境条件并在温和条件下回收靶和衬底耦合的结合元件来沉淀复合物。

    METHODS FOR ANALYSIS OF FLUIDS
    83.
    发明申请
    METHODS FOR ANALYSIS OF FLUIDS 有权
    流体分析方法

    公开(公告)号:US20140182363A1

    公开(公告)日:2014-07-03

    申请号:US13729851

    申请日:2012-12-28

    CPC classification number: G01N27/026

    Abstract: A method for analyzing a sample includes providing a sensor assembly having a sensing region with a plurality of resonant circuits, and a plurality of tuning elements. The method further includes exposing the sensor assembly to an environment comprising the sample, and probing the sample with one or more frequencies generated by the sensor assembly. Furthermore, the method includes determining an impedance of a sensor response over a measured spectral frequency range of the sensor assembly, and relating measurement of impedance of the sensor assembly to at least one environmental property of the sample.

    Abstract translation: 用于分析样品的方法包括提供具有感测区域的传感器组件,其具有多个谐振电路和多个调谐元件。 该方法还包括将传感器组件暴露于包括样品的环境中,并且用传感器组件产生的一个或多个频率来探测样品。 此外,该方法包括确定传感器组件的测量光谱频率范围内的传感器响应的阻抗,以及将传感器组件的阻抗测量值与样本的至少一个环境特性相关联。

    SYSTEMS FOR ANALYSIS OF FLUIDS
    84.
    发明申请
    SYSTEMS FOR ANALYSIS OF FLUIDS 有权
    流体分析系统

    公开(公告)号:US20140182362A1

    公开(公告)日:2014-07-03

    申请号:US13729800

    申请日:2012-12-28

    CPC classification number: G01N27/026 H04Q9/00

    Abstract: A resonant sensor assembly includes a dielectric substrate having a sensing region. The sensor assembly further comprises a plurality of tuning elements operatively coupled to the sensing region, where the sensing region is coupled to the plurality of tuning elements to define a plurality of resonant circuits.

    Abstract translation: 谐振传感器组件包括具有感测区域的电介质基片。 传感器组件还包括可操作地耦合到感测区域的多个调谐元件,其中感测区域耦合到多个调谐元件以限定多个谐振电路。

    MULTI-FREQUENCY SENSING SYSTEM AND METHOD
    85.
    发明公开

    公开(公告)号:US20240295536A1

    公开(公告)日:2024-09-05

    申请号:US18116174

    申请日:2023-03-01

    CPC classification number: G01N33/0073 G01N33/0006 G01N33/0062 G01N33/0068

    Abstract: A sensor device may include an electrochemical (EC) gas sensor, a metal-oxide semiconductor (MOS) gas sensor, and control circuitry. The control circuitry may provide EC excitation signals to the EC gas sensor, provide at least two MOS excitation signals to the MOS gas sensor, and detect at least two gases. The control circuitry may detect the gases based on receiving EC response signals from the at least one EC gas sensor based on providing the EC excitation signals, receiving MOS response signals from the MOS gas sensor based on providing the MOS excitation signals, determining a multivariate response pattern based on the EC response signals and the MOS response signals, and differentiating between the at least two gases in contact with the sensor device based on the multivariate response pattern.

    MULTI-FREQUENCY SENSING SYSTEM AND METHOD
    86.
    发明公开

    公开(公告)号:US20240133837A1

    公开(公告)日:2024-04-25

    申请号:US17969428

    申请日:2022-10-18

    CPC classification number: G01N27/228 G01N27/227

    Abstract: A sensor system is described with improved measurement accuracy that is achieved by reducing noise, baseline drift, or both based on processing a group of sensor element response signals. The response signals may be received in response to providing stimuli to the sensor element using different excitation frequencies over time. For example, the sensor circuitry may provide excitation signals to the sensing element with multiple excitation frequencies over time. The sensor system may include storage and processing circuitry to receive the response signals and to generate the correction values based on analyzing the received response signals. The sensor system may then provide adjusted response signals by reducing the noise, baseline drift, or both based on the correction values.

    Sensing system and method
    87.
    发明授权

    公开(公告)号:US11761938B2

    公开(公告)日:2023-09-19

    申请号:US16448328

    申请日:2019-06-21

    Abstract: A sensor system includes an unmanned vehicle system is provided that includes a housing, and an environmental sensor system coupled to the housing, the environmental sensor system configured to detect one or more environmental conditions of an environment in operational contact with the unmanned vehicle system. The environmental sensor includes a sensing element that includes a sensing material to detect and quantify at least one analyte gas by measuring impedance of the sensing element at one or more frequencies of the different frequencies during exposure of the sensing material to the at least one analyte gas. A control unit includes one or more processors coupled with the environmental sensor and configured to receive a detector signal from the detector circuit of the environmental sensor indicative of the one or more environmental conditions, and control the movement of the unmanned vehicle system based on an operation signal of a remote device, instructions received at a vehicle controller, the detector signal, or in response to detected route conditions.

    Gas sensing assembly and method
    88.
    发明授权

    公开(公告)号:US11567020B2

    公开(公告)日:2023-01-31

    申请号:US16600520

    申请日:2019-10-13

    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.

    SENSOR SYSTEM AND METHOD
    90.
    发明申请

    公开(公告)号:US20210293697A1

    公开(公告)日:2021-09-23

    申请号:US16826248

    申请日:2020-03-22

    Abstract: A sensor system includes a sensing element having a section of a layer assembly deposited onto a substrate. The layer assembly includes plural layers of different materials. The section of the layer assembly is configured to be etched to form plural individual pillars of the plural layers of the different materials. The individual pillars are configured to be in contact with a fluid to sense one or more analyte fluid components within the fluid. The sensing element is configured to generate a sensor signal responsive to the individual pillars being in contact with the fluid. The sensor system includes one or more processors configured to receive the sensor signal from the sensing element. The one or more processors may identify the one or more analyte fluid components within the fluid and an amount of each of the analyte fluid components within the fluid based on the sensor signal.

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