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

1989-05-01

1990-08-14

Behrend, Harvey E.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

376245, 376256, G01N 2726

Patent

active

049484923

ABSTRACT:
An electrode probe suited for employment as a reference electrode in a high pressure, high temperature, and high radiation field environment such as adjacent 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 crucible which is brazed to a kovar/stainless steel housing, welded in turn, to a coaxial cable assembly for signal transfer. The crucible 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: 4636292 (1987-01-01), Fejes et al.
patent: 4725399 (1988-02-01), McCulloch et al.
patent: 4759902 (1988-07-01), Anstine
patent: 4882122 (1989-11-01), Head et al.

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