Solid state ph sensor

Details Solid state ph sensor Solid state ph sensor

G - Physics

01

N

324/28.2

G01N 27/07 (2006.01) G01N 27/30 (2006.01) G01N 27/403 (2006.01)

Patent

CA 2030352

04-21(466)A SOLID STATE pH SENSOR ABSTRACT OF THE DISCLOSURE A solid state pH sensor having an indicator electrode of metal/metal oxide and a reference electrode of metal/metal salt applied to electrically conductive conductors, such as electrically conductive cermet conductors and electrically conductive metal pins, imbedded in an electrically non-conductive substrate, such as electrically non-conductive ceramic substrates including S-glass substrates. The sensing portion of the sensor preferably has a coating of an annealed perfluorocarbon copolymer. Alternatively, the indicator or reference electrodes may be formed on separate electrically non-conductive substrates with each having an electrically conductive conductor imbedded therein. These indicator or reference electrodes may be utilized with each other or with prior art indicator or reference electrodes.

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