Method and device for measuring levels

Details Method and device for measuring levels Method and device for measuring levels

2005-09-13

2005-09-13

Nguyen, Vincent Q. (Department: 2858)

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Lumped type parameters

C324S686000, C073S30400R

Reexamination Certificate

active

06943566

ABSTRACT:
A sensor is applied to the wall of a container or is integrated into the wall. An alternating voltage is applied to the sensor in order to measure the level of the contents of the container, the capacitance or the electrical field produced being a measure for the fill level.

REFERENCES:
patent: 3665209 (1972-05-01), Webb et al.
patent: 3901079 (1975-08-01), Vogel
patent: 4021707 (1977-05-01), Ehret et al.
patent: 5600997 (1997-02-01), Kemp et al.
patent: 5611240 (1997-03-01), Yamaguchi
patent: 6078729 (2000-06-01), Kopel
patent: 19842484 (1999-12-01), None

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