Pressure sensor and leak detector

Details Pressure sensor and leak detector Pressure sensor and leak detector

1981-10-09

1984-05-22

Yasich, Daniel M.

Electricity: measuring and testing

Using ionization effects

For monitoring pressure

73 492, 250384, G01N 2762, G01T 1185

Patent

active

044504098

ABSTRACT:
A leak detector comprising a housing having an axis on first and second compartments spaced along the axis and hermetically separated by a partition, the first compartment being closed to comprise a pressure envelope which is in communication with an evacuated space to be monitored for leakage, an ionization cell in the first compartment providing an electrical current determined by gas in that compartment, hermetically sealed feed-through for enabling an electrical connection with the gauge, to the partition from the second compartment, an apparatus in the second compartment performing a control function in accordance with the current supplied by the cell.

REFERENCES:
patent: 3223842 (1965-12-01), Hyde
patent: 3310734 (1967-03-01), Hansen
patent: 3495165 (1970-02-01), Cobine et al.
patent: 4025794 (1977-05-01), Lovelock

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