Electrode probe for use in aqueous environments of high temperat

Details Electrode probe for use in aqueous environments of high temperat Electrode probe for use in aqueous environments of high temperat

1991-08-15

1993-06-08

Walsh, Donald P.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

376245, 376256, 204400, G01N 2730

Patent

active

052175960

ABSTRACT:
An electrode probe suited for employment as an electrical potential reference electrode in an aqueous, high pressure, high temperature, and high radiation field environment such as the core of a nuclear reactor is described. The electrode is a brazed and welded assembly consisting of only ceramic and metal parts including a sapphire base which is brazed to a kovar/stainless steel housing, welded in turn, to a coaxial cable assembly for signal transfer. The base incorporates an integrally formed pedestal through which a conductor wire extends and over which is positioned a selectively coated cylindrically shaped sealing retainer. The device is particularly suited for employment with a silver/silver chloride electrode system.

REFERENCES:
patent: 4320378 (1982-03-01), Taniguchi et al.
patent: 4636292 (1987-01-01), Fejes et al.
patent: 4948492 (1990-08-01), Niedrach et al.
patent: 4978921 (1990-12-01), Indig et al.
patent: 4990855 (1991-02-01), Niedrach et al.
patent: 5043053 (1991-08-01), Indig et al.

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