Fluid flowrate measuring apparatus

Details Fluid flowrate measuring apparatus Fluid flowrate measuring apparatus

1992-06-09

1994-04-05

Chilcot, Jr., Richard E.

Measuring and testing

Volume or rate of flow

By measuring electrical or magnetic properties

7386112, G01F 160

Patent

active

052994619

ABSTRACT:
Fluid flowrate measuring apparatus in which magnet coils, positioned symmetrically about a pipe through which fluid flows, are excited to generate magnetic fields during four periods of an excitation cycle which are additive during the first period of excitation, opposing during the second period of excitation, additive during the third period of excitation in an opposite sense to that during the first period, and opposing during the fourth period of excitation in an opposite sense to that during the second period. Electrodes, which sense fluid flow through the magnetic fields, develop signals representative of fluid flow through the pipe during the four excitation periods and these signals are processed to develop a flowrate measurement signal.

REFERENCES:
patent: 3955413 (1976-05-01), Steele et al.
patent: 4601209 (1986-07-01), Amata
patent: 4704908 (1987-11-01), Blatter
patent: 4723449 (1988-02-01), Tiley
patent: 4727755 (1988-03-01), Schmoock
patent: 4733191 (1988-03-01), Doll
English-language abstract of German Patent No. 4 010 728.
Abstract of German Patent No. 2 743 954.
Translation /German Patent No. 2 743 954.

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