Parallel clock salinity sensor
    7.
    发明授权

    公开(公告)号:US12276631B2

    公开(公告)日:2025-04-15

    申请号:US17671809

    申请日:2022-02-15

    Abstract: A sensor for measuring ocean water salinity is described. The sensor may include a measurement clock circuit, a control clock circuit, and a comparator circuit. The measurement clock circuit, having an output that varies with salinity of a fluid, may have a first circuit architecture that includes a capacitive gap assembly that permits a fluid to flow into a gap between two electrodes of the capacitive gap assembly. The control clock circuit, having an output that does not vary with salinity of the fluid, may have a second circuit architecture comprising a capacitor. The comparator circuit may be configured to compare the controlled clock output to the measured clock output over a duration of time to determine a salinity measurement of the fluid. The first circuit architecture may differ from the second circuit architecture in that an electrically connected position of the capacitive gap assembly within the first circuit architecture is the electrically connected position of the capacitor within the second circuit architecture.

    Water purification device
    10.
    发明授权

    公开(公告)号:US10913021B2

    公开(公告)日:2021-02-09

    申请号:US15285534

    申请日:2016-10-05

    Abstract: A water purification device includes a heavy metal removal layer configured to remove heavy metal ions and perfluorinated compounds from contaminated water. The water purification device may further include a biological species removal layer configured to remove biological species from the contaminated water and a support layer configured to provide support for the water purification device.

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