Capacitive sensor comprising a conductive front surface for form

Details Capacitive sensor comprising a conductive front surface for form Capacitive sensor comprising a conductive front surface for form

1992-11-05

1994-10-25

Lateef, Marvin M.

Electricity: electrical systems and devices

Electrostatic capacitors

Variable

361282, 295921, H01G 700

Patent

active

053594916

ABSTRACT:
The capacitive sensor comprises a sensor body which includes a housing, a conductive front surface and insulation means provided between the conductive surface and the housing; it also comprises a coaxial cable of the type shielded by a mineral insulator for the connection of the conductive surface to a device for measuring the capacitance of the system formed by the conductive surface, constituting a first capacitor plate, and a reference conductive surface which is arranged opposite to and at a given distance from the first plate and which constitutes a second capacitor plate. The body of the sensor is formed by an electrically open extension of the coaxial cable shielded by a mineral insulator in which the free end of the core constitutes the conductive surface, the extension of the sheath constitutes the housing, and the insulation means consist of a mineral insulator.

REFERENCES:
patent: 2802178 (1957-08-01), Shafer
patent: 4950084 (1990-08-01), Bailleul

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