Patent ID: 9579765
Date: 2017-02-28
CPC Classifications: B24B,G01N

Claim:
1. A sensor for detection and measurement of a particular substance present in a liquid, comprising: a base with an interior edge, an exterior edge and a top surface extending between the interior edge and the exterior edge; a continuous non-circular or non-symmetrical electrode for varied distance of the continuous non-circular or non-symmetrical electrode from the interior edge and the exterior edge fixed on said top surface for detection and measurement of a particular substance present in a liquid in which said sensor is submersed, and a rotating ceramic stone to periodically clean residue from the continuous non-circular or non-symmetrical electrode without formation of an electrode dual side-abutting groove in the rotating ceramic stone, wherein the electrode dual side-abutting groove simultaneously abuts each side of the continuous non-circular or non-symmetrical electrode, due to the continuous non-circular or non-symmetrical electrode's varied distance from the interior edge and the exterior edge.