Sensing system and method
    21.
    发明授权

    公开(公告)号:US11408874B2

    公开(公告)日:2022-08-09

    申请号:US16710273

    申请日:2017-06-13

    Abstract: A system for analysis of at least one analyte gas present in an insulating fluid of an electrical transformer includes a gas sensor in operational contact with at least one analyte gas from an insulating fluid to provide multiple responses from the sensor. One or more processors are configured to receive the multiple responses during exposure of the sensor to the analyte gas from the insulating fluid representative of a concentration of the analyte gas present in the insulating fluid. The processors are configured to select one or more responses of the multiple responses that provide rejection of interfering gases, resolution between gases, improved low detection range of the analyte gas, improved high detection range of the analyte gas, improved response linearity of the analyte gas, improved dynamic range of measurements of the analyte gas, or one or more combinations thereof compared to non-selected responses from the sensor.

    Remote leak detection system
    23.
    发明授权

    公开(公告)号:US10704981B2

    公开(公告)日:2020-07-07

    申请号:US15479751

    申请日:2017-04-05

    Abstract: A scanning system for producing a path averaged concentration map of a leaking plume is provided. The system includes a tunable light source capable of tuning its wavelength over the absorption band of the specimen of interest, a lightweight mirror to scan the light, a lightweight collection optic, an array of detectors to measure reflected light, one or more processors configured to align the scanning with the detected signal and analyze the signal to produce a path averaged concentration map of the leaking plume, the one or more processors configured to use an analytical model of plume dynamics to compare the detected concentration map and calculate leak location and rate, and a flying platform that can fly in a control flight path.

    Resonant sensing system and method for monitoring properties of an industrial fluid

    公开(公告)号:US10539524B2

    公开(公告)日:2020-01-21

    申请号:US15418820

    申请日:2017-01-30

    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.

    SYSTEMS AND METHODS FOR ENVIRONMENT SENSING
    25.
    发明申请

    公开(公告)号:US20190297400A1

    公开(公告)日:2019-09-26

    申请号:US16439160

    申请日:2019-06-12

    Abstract: Systems and methods are provided for environment sensing. The system includes a sensor node having a sensor. The sensor includes a sensing material configured to be in contact with an ambient environment. The system includes a remote system having a communication circuit and a controller circuit. The communication circuit is configured to be wirelessly communicatively coupled to the sensor node. The controller circuit electrically coupled to the communication circuit. The controller circuit configured to receive an impedance response of the sensing material and analyze the impedance response of the sensing material at frequencies that provide a linear response of the sensing material to an analyte of interest and at least partially reject effects of interferences.

    SYSTEMS AND METHODS FOR NETWORKED SENSOR NODES

    公开(公告)号:US20190222651A1

    公开(公告)日:2019-07-18

    申请号:US16245356

    申请日:2019-01-11

    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.

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