Sensing system and method
    72.
    发明授权

    公开(公告)号:US10260388B2

    公开(公告)日:2019-04-16

    申请号:US15365127

    申请日:2016-11-30

    Abstract: A system includes one or more processors and a resonant sensor that contacts oil within an engine of a vehicle system. The sensor generates electrical stimuli at different times during an operational life of the engine. Each electrical stimulus has multiple different frequencies applied to the oil. The one or more processors receive electrical signals representing impedance responses of the oil to the electrical stimuli. The one or more processors determine a concentration of a polar analyte in the oil at the different times based on the impedance responses and calculate a degradation value for the engine based on the polar analyte concentration. Responsive to the degradation value exceeding a designated degradation threshold, the one or more processors at least one of schedule maintenance for the vehicle system, provide an alert to schedule maintenance for the vehicle system, or prohibit operation of the vehicle system until maintenance is performed.

    Systems and methods for networked sensor nodes

    公开(公告)号:US10218791B2

    公开(公告)日:2019-02-26

    申请号:US14982996

    申请日:2015-12-29

    Abstract: A sensor assembly includes an impedance sensor element, an impedance sensor reader and a communications module. The communications module is configured to communicate with a remote computing device. The impedance sensor reader is coupled to the impedance sensor element. The impedance sensor reader includes a synthesizer and a detector. The synthesizer is configured to output an excitation signal having known values for a plurality of signal characteristics to the impedance sensor element and to generate the excitation signal based on a plurality of direct digital synthesizer (DDS) coefficients received from the remote computing device through the communications module. The detector is coupled to the impedance sensor element and configured to detect a response of the impedance sensor element to the excitation signal and determine an impedance of the impedance sensor element based at least in part on the response of the impedance sensor element to the excitation signal.

    HIGHLY SELECTIVE CHEMICAL AND BIOLOGICAL SENSORS

    公开(公告)号:US20180045671A1

    公开(公告)日:2018-02-15

    申请号:US15794815

    申请日:2017-10-26

    CPC classification number: G01N27/3278 G01N27/025 G01N33/48792

    Abstract: Methods and sensors for selective fluid sensing are provided. A sensor includes a resonant inductor-capacitor-resistor (LCR) circuit and a sensing material disposed over the LCR circuit. The sensing material includes a coordination compound of a ligand and a metal nanoparticle. The coordination compound has the formula: (X)n-M, where X includes an alkylamine group having the formula (R—NH2), an alkylphosphine having the formula (R3—P), an alkylphosphine oxide having the formula (R3P═O), an alkyldithiocarbamate having the formula (R2NCS2), an alkylxanthate having the formula (ROCS2), or any combination thereof, R includes an alkyl group, n is 1, 2, or 3, and M includes the metal nanoparticle of gold, silver, platinum, palladium, alloys thereof, highly conductive metal nanoparticles, or any combination thereof. The sensing material is configured to allow selective detection of at least six different analyte fluids from an analyzed fluid mixture.

    SYSTEMS AND METHODS FOR NETWORKED SENSOR NODES

    公开(公告)号:US20170187541A1

    公开(公告)日:2017-06-29

    申请号:US14982996

    申请日:2015-12-29

    CPC classification number: H04L67/12 G01N27/00 G01N27/026 G01R27/02

    Abstract: A sensor assembly includes an impedance sensor element, an impedance sensor reader and a communications module. The communications module is configured to communicate with a remote computing device. The impedance sensor reader is coupled to the impedance sensor element. The impedance sensor reader includes a synthesizer and a detector. The synthesizer is configured to output an excitation signal having known values for a plurality of signal characteristics to the impedance sensor element and to generate the excitation signal based on a plurality of direct digital synthesizer (DDS) coefficients received from the remote computing device through the communications module. The detector is coupled to the impedance sensor element and configured to detect a response of the impedance sensor element to the excitation signal and determine an impedance of the impedance sensor element based at least in part on the response of the impedance sensor element to the excitation signal.

    SENSING SYSTEM AND METHOD
    77.
    发明申请

    公开(公告)号:US20170138876A1

    公开(公告)日:2017-05-18

    申请号:US15418820

    申请日:2017-01-30

    CPC classification number: G01N27/026 G01N33/2847 G01N33/2888

    Abstract: A sensing system includes a sensor and one or more processors. The sensor includes a sensing region in contact with an industrial fluid. The sensing region includes electrodes and a sensing region circuit electrically connected to the electrodes. The sensing region circuit generates an electrical stimulus having multiple different frequencies that are applied to the industrial fluid via the electrodes. The one or more processors receive one or more electrical signals from the sensor representative of an impedance response of the sensing region to the electrical stimulus. The one or more processors analyze the impedance response and determine at least one of a contaminant concentration of an external contaminant in the industrial fluid, an acid concentration of acidic components in the industrial fluid, or a base concentration of basic components in the industrial fluid based on the impedance response.

    SENSOR FOR IN SITU SELECTIVE DETECTION OF COMPONENTS IN A FLUID
    79.
    发明申请
    SENSOR FOR IN SITU SELECTIVE DETECTION OF COMPONENTS IN A FLUID 审中-公开
    用于现场选择性检测流体中组分的传感器

    公开(公告)号:US20160334353A1

    公开(公告)日:2016-11-17

    申请号:US15155845

    申请日:2016-05-16

    Abstract: A sensor system for detection of an analyte in an industrial fluid in the presence of interferences which includes: a multivariable inductor-capacitor-resistor resonant transducer with multiple operationally independent outputs; a sensing material composition configured to provide different response patterns to an analyte in the fluid in the presence of interferences; and a signal processor that quantifies the analyte. Also, a sensor system for detection of an analyte that includes: a transducer with multiple operationally independent outputs; a sensing material compositions configured to provide different response patterns to an analyte in the industrial fluid in the presence of interferences; and a signal processor configured to quantify the analyte in the industrial fluid in the presence of interferences. An embodiment of the sensor system detects methane.

    Abstract translation: 一种用于在存在干扰的情况下检测工业流体中的分析物的传感器系统,其包括:多变量电感器 - 电容器 - 电阻器谐振换能器,具有多个操作上独立的输出; 感测材料组合物,被配置为在干扰的存在下向流体中的分析物提供不同的响应模式; 以及量化分析物的信号处理器。 此外,用于检测分析物的传感器系统,其包括:具有多个操作上独立输出的换能器; 感测材料组合物,其被配置为在干扰的存在下向工业流体中的分析物提供不同的响应模式; 以及信号处理器,被配置为在干扰的存在下量化工业流体中的分析物。 传感器系统的一个实施例检测甲烷。

    Methods for analysis of fluids
    80.
    发明授权
    Methods for analysis of fluids 有权
    流体分析方法

    公开(公告)号:US09261474B2

    公开(公告)日:2016-02-16

    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。

Patent Agency Ranking