| 摘要 |
A sensor for use in monitoring electrochemical potentials, includes (a) a crucible (18) made of ceramic material having a closed end and an open end (22), the closed end (20) containing metal/metal oxide powder mixture (24) retained therein by mineral insulating packing (26), the open end (22) having a metallized band fired in the ceramic material; (b) an annular metal sleeve (28) formed of a metal exhibiting a coefficient of thermal expansion compatible with the crucible, and having a distal open end (30) brazed to the open end (22) of the ceramic tube, and a proximal open end (32); (c) an insulated electrical conductor (16) having a distal end in electrical connection with the metal/metal oxide powder (24) and extending through the mineral insulation packing and into the first annular sleeve (28), and having a proximal end terminating near the proximal open end (32) of the annular sleeve; and (d) a signal transfer assembly (14) sealingly associated with the proximal end (32) of the annular sleeve including an electrical cable (46) connected to the electrical conductor (16). <IMAGE> |
