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US 5,495,176 AGranted
Ceramics cell for measuring electrical conductivity of liquid solution
AssigneeShinagawa Refractories Co., Ltd.
InventorsAkira Shiranita, Susumu Nakayama
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AssigneeShinagawa Refractories Co., Ltd.
InventorsAkira Shiranita, Susumu Nakayama
Estimating the term…
In a cell for measuring electrical conductivity, a container (2) and electrodes (1) are made of ceramics having high corrosion-resistant property. Insulating ceramics are used for the container (2), and conductive ceramics having resistance value of several k .OMEGA..cm or less is used for the electrodes (1). The ceramics are far superior to glass in corrosion resistant property and mechanical strength under normal as well as high temperature conditions. Further, the cell is produced at lower cost than the one made of precious metal and has high corrosion resistant property and can be used under strong acid or strong alkaline conditions. It has high mechanical strength and can be used under high pressure and high temperature conditions and produced at low cost because precious metal is not used for the electrodes.
A cell for measuring electrical conductivity of a specimen, comprising a container for holding the specimen, the container provided with two electrodes in spaced relationship from each other within the container, the electrodes and the container being integrally molded together, the electrodes contacting the specimen such that electric current is applied across the two electrodes to measure electrical conductivity, wherein the container is made of insulating ceramics and the electrodes are made of conductive ceramics.
Dependencies are inferred from the claim text.