Method for obtaining electrical signals correlated with the posi

Details Method for obtaining electrical signals correlated with the posi Method for obtaining electrical signals correlated with the posi

1992-02-27

1993-07-06

Woodiel, Donald O.

Measuring and testing

Fluid pressure gauge

U-tube liquid column

336 30, G01L 910, H01F 2102

Patent

active

052243850

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
patent: 3839904 (1974-10-01), Stripling et al.
patent: 4129852 (1978-12-01), Knecht
patent: 4325190 (1982-04-01), Duerst
patent: 4414541 (1983-11-01), Ho

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