Omni-inducer
    24.
    发明授权

    公开(公告)号:US12276767B1

    公开(公告)日:2025-04-15

    申请号:US18391606

    申请日:2023-12-20

    Applicant: SeeScan, Inc.

    Abstract: Omnidirectional electromagnetic signal inducer (omni-inducer) devices are disclosed. The omni-inducer device may include a housing, which may include a conductive base for coupling signals to ground, and an omnidirectional antenna node including a plurality of antenna coil assemblies, where the node may be disposed on or within the housing. The omni-inducer device may further include one or more transmitter modules for generating ones of a plurality of output signals, which may be generated at ones of a plurality of different frequencies, and one or more control circuits configured to control the transmitters and/or other circuits to selectively switch the ones of the plurality of output signals between ones of the plurality of antenna coil assemblies.

    UTILITY LOCATING SYSTEMS AND METHODS WITH FILTER TUNING FOR POWER GRID FLUCTUATIONS

    公开(公告)号:US20230305179A1

    公开(公告)日:2023-09-28

    申请号:US18162663

    申请日:2023-01-31

    Applicant: SeeScan, Inc.

    CPC classification number: G01V3/081

    Abstract: Systems and methods are provided for locating underground utility equipment. In an exemplary embodiment, the local utility power grid frequency is detected using a bandwidth filter centered around the nominal or expected frequency, for example, 60 Hz in the US, or 50 Hz in Europe. From the actual utility power grid frequency detected, the frequency of one or more harmonics of the detected power grid frequency are calculated, and then the calculated value(s) may be used to tune one or more bandwidth filters, or to further refine a power grid frequency offset enabling detection of a larger range of frequencies. Using the offset, any detected power grid frequencies and desired harmonics may be used by a utility locator or system to increase detection and location accuracy by adjusting for any power grid frequency fluctuations.

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