Voltammetric oxygen sensor

Claim 1

A VOLTAMMETRIC OXYGEN SENSOR COMPRISING A. A PAIR OF PARALLEL SPACED APART ELONGATED PLATINUM WIRE ELECTRODES, SAID PLATINUM ELECTRODES BEING ELECTRICALLY INSULATED FROM EACH OTHER BY ELECTRICAL INSULATION BUT HAVING THEIR OPPOSITE END PORTIONS EXPOSED, B. CONSTANT CURRENT SOURCE MEANS CONNECTED ACROSS SAID PLATINUM ELECTRODES COUPLED ELECTRICALLY TO EACH PROXIMAL END PORTION THEREOF, SAID CONSTANT CURRENT SOURCE POLARIZING THE PLATINUM ELECTRODES PRODUCING A PLATINUM CATHODE AND A PLATINUM ANODE, C. AN ASSOCIATED SILVER-SILVER HALIDE REFERENCE ELECTRODE SURROUNDING AT LEAST PARTIALLY SAID PLATINUM ELECTRODES AND BEING ELECTRICALLY INSULATED THEREFROM, D. A HIGH IMPEDANCE VOLTMETER CONNECTED ACROSS AND COUPLED ELECTRICALLY TO THE SAID PROXIMAL END PORTION OF SAID PLATINUM CATHODE AND THE SILVER OF SAID REFERENCE ELECTRODE PROVIDING A CATHIDE-REFERENCE ELECTRIDE VOLTAGE READOUT, E. AN ELECTROLYTE SOLUTION IN MUTUAL CONTACT WITH AT LEAST THE DISTAL END PORTIONS OF SAID PLATINUM ANODE, SAID PLATINUM CATHODE AND SAID SILVER HALIDE OF SAID REFERENCE ELECTRODE, AND F. AN OXYGEN PERMEABLE ELECTRICALLY INSULATING DIFFUSION BARRIER MATERIAL ENCAPSULATING SAID ELECTROLYTE SOLUTION AND AT LEAST THE DISTAL PORTIONS OF SAID ELECTRODES.