General Electric Company

Robert Jett

Lucas Clarke

Leo R Lombardo

A sensor for use in monitoring electrochemical potentials, includes (a) a crucible made of ceramic material having a closed end and an open end, the close end containing metal/metal oxide powder mixture retained therein by mineral insulating packing, the open end having a metallized band fired in the ceramic material; (b) an annular metal sleeve formed of a metal exhibiting a coefficient of thermal expansion compatible with the crucible, and having a distal open end brazed to the open end of the crucible, and a proximal open end; (c) an insulated electrical conductor having a distal end in electrical connection with the metal/metal oxide powder and extending through the mineral insulation packing and into the first annular sleeve, and having a proximal end terminating near the proximal open end of the annular sleeve; and (d) a signal transfer assembly sealingly associated with the proximal end of the annular sleeve including an electrical cable connected to the electrical conductor.

Ceramic electrochemical corrosion potential sensor probe with increased lifetime

A water monitoring system for a nuclear reactor is provided. In an exemplary embodiment, the water monitoring system includes a fiber optic cable having a first end and a second end, with the first end configured to optically couple to the reactor cooling water distribution system, and at least one laser light source optically coupled to the second end of the fiber optic cable. The water monitoring system also includes a spectrophotometer optically coupled to the second end of the fiber optic cable.

Laser induced fluorescence water measurement system for nuclear reactors

An electrochemical corrosion potential sensor electrode is formed with a zircalloy electrode tip having a closed end and an open end, the open end secured to a ceramic insulator, with a conductor wire extending through the insulator into the electrode tip.

Zircalloy tipped ECP sensor electrode

An ultra violet light sterilizing apparatus includes in one embodiment a fluid chamber, at least one ultraviolet light source configured to emit ultraviolet light into the fluid chamber, and at least one ultraviolet light sensor that includes a photodiode. The photodiode is a silicon carbide photodiode, a gallium nitride photodiode, or an aluminum gallium nitride photodiode. Each UV light sensor includes a sealed outer housing having an optically transparent window. The photodiode is located inside the housing adjacent the transparent window. Each UV light sensor also includes a signal amplification unit that includes an amplifier mounted on a printed circuit board located inside the housing. The UV sterilization apparatus also includes a controller configured to receive, as input, a signal from each ultraviolet light sensor. The controller compares the input signal to a desired UV light intensity and outputs a control signal to each ultraviolet light source to adjust the intensity of the ultraviolet light emitted from each ultraviolet light source.

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Twinsburg, OH, United States of America

Robert Jett