Electrode assembly for a capacitance type probe

Details Electrode assembly for a capacitance type probe Electrode assembly for a capacitance type probe

1981-06-25

1983-10-25

Paschall, M. H.

Electricity: electrical systems and devices

Electrostatic capacitors

Variable

73304C, 324 61P, G01F 2326

Patent

active

044122705

ABSTRACT:
An electrode assembly for use in a capacitance type probe for measuring volume or height of an electrically conductive liquid. The probe includes an inner conductor which an electrical conductive wire is connected at one end. The inner conductor is surrounded by a thick-wall TEFLON tube which functions as an insulator. A thin-wall TEFLON sleeve is heat shrunk onto the thick-wall TEFLON tube and the ends of the thin-wall sleeve are heated and sealed about the thick-wall tube to prevent any leakage of fluid to the inner conductor. The assembly is also provided with a polyurethane foam to provide rigidity and to prevent moisture from forming within the assembly.

REFERENCES:
patent: 3109882 (1963-11-01), Maltby
patent: 3200312 (1965-08-01), Callahan
patent: 3475960 (1969-11-01), Miller
patent: 3870951 (1975-03-01), Brown et al.

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