High pressure electrical feedthru

Details High pressure electrical feedthru High pressure electrical feedthru

1981-12-23

1983-11-22

Woodiel, Donald O.

Measuring and testing

Fluid pressure gauge

Diaphragm

73756, 338 4, G01L 906

Patent

active

044161565

ABSTRACT:
A high pressure electrical feedthru uses a ceramic circuit assembly which has a metalized bonding area on the surface of the ceramic to enable the ceramic assembly to be brazed to an outer support housing. The ceramic structure has embedded therein electrical conductors which extend from electrical connection terminals at one end of the feedthru to electrical connection terminals at the other end of the feedthru with the brazing area being located therebetween. The ceramic structure is arranged to support a pressure sensor which is connected to the electrical connection terminals at one end of the ceramic structure. The sensor and the adjacent end of the feedthru are located in a high pressure environment within a pressure tight housing. The ceramic assembly is brazed to the interior surface of the housing in the area of the metalized bonding surface while allowing the other end of the ceramic feedthru to extend out of the housing to provide electrical connection terminals outside of the high pressure environment for connection of the sensor to associated apparatus.

REFERENCES:
patent: 3918019 (1975-11-01), Nunn
patent: 3968466 (1976-07-01), Nakamura et al.
patent: 4023562 (1977-05-01), Hynecek
patent: 4240002 (1980-12-01), Tosi

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