Probe type electromagnetic flow meter with debris shedding capab

Details Probe type electromagnetic flow meter with debris shedding capab Probe type electromagnetic flow meter with debris shedding capab

1977-06-16

1978-11-14

Ruehl, Charles A.

Measuring and testing

Volume or rate of flow

System

G01F 158

Patent

active

041250192

ABSTRACT:
A probe type magnetic flow meter is arranged for accurate measurement in environments which exhibit debris especially debris which is of a character which may tend to cling to the probe. The probe, which has a longitudinal axis, is mounted to be immersed in the flowing liquid medium, and is constrained by a coupling so that the angle between the longitudinal axis and a direction perpendicular to direction of flow of the flowing medium is an acute angle of at least a predetermined magnitude, for example, at least 45.degree.. Typically, the probe may be attached to a mounting collar or rod which is, in turn, supported by an adapter which may then be slip-fit into a pipe and some or all of these components, in addition to the probe itself, may be immersed in the flowing liquid medium. The leading edge of all apparatus immersed in the flowing liquid medium is arranged in such a way that debris contacting this apparatus is subjected to natural force from the flowing liquid medium resulting in motion of the debris in a direction generally parallel to the longitudinal axis of the transducer until the debris reaches the furthest extent of the probe and is shed. Embodiments are disclosed wherein the probe measures velocity and open channel flow or in pressure flow, for example, in a full conduit.

REFERENCES:
patent: 3529591 (1970-09-01), Schvette
patent: 3668931 (1972-06-01), Zanker et al.
patent: 3903741 (1975-09-01), Greene

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