Method and apparatus for obtaining electrical signals correlated

Details Method and apparatus for obtaining electrical signals correlated Method and apparatus for obtaining electrical signals correlated

1990-07-24

1992-05-12

Woodiel, Donald O.

Measuring and testing

Fluid pressure gauge

U-tube liquid column

G01L 910

Patent

active

051117002

ABSTRACT:
A method of obtaining electrical signals corresponding to the position of a mercury mass movable within a vessel, characterized by the fact that the position of the moving mass within the vessel is detected by means of at least one electromagnetic proximity sensor, specifically an induction proximity sensor, that is a sensor adapted to producing an electrical signal when approached by a metal object or when approaching the same.

REFERENCES:
patent: 3140606 (1964-07-01), Kramer et al.
patent: 3218863 (1965-11-01), Calvert
patent: 3407664 (1968-10-01), Glassey

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