Device to measure the flowrate in a partially full line

Details Device to measure the flowrate in a partially full line Device to measure the flowrate in a partially full line

1992-09-03

1994-12-27

Chilcot, Jr., Richard E.

Measuring and testing

Volume or rate of flow

By measuring electrical or magnetic properties

7386112, 7386116, G01F 158

Patent

active

053754751

ABSTRACT:
Device to measure the flowrate of a fluid flowing in a partially full line, such as a canal or open channel, with coils arranged above and below the partially full line to generate a magnetic field extending essentially vertically through the partially full line and with electrodes arranged opposite each other on opposite lateral walls of the partially full line. An excitation circuit excites the coils and an evaluation circuit processes the potential difference at the electrodes resulting from the magnetic field and the fluid flow to produce a flowrate proportional signal. The device is characterized by a bridge which spans the partially full line and on which the upper coil is positioned with the vertical axis of the upper coil extending through the central region of the bridge.

REFERENCES:
patent: 3805768 (1974-04-01), Barefoot et al.
patent: 3981190 (1976-09-01), Vidmantas
patent: 4137767 (1979-02-01), Wada
patent: 4253340 (1981-03-01), Schmoock

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