Electrode probe for use in aqueous environments of high temperature and high radiation
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United States of America Patent
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Jun 8, 1993
Grant Date -
N/A
app pub date -
Aug 15, 1991
filing date -
Aug 15, 1991
priority date (Note) -
Expired
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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.
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