A flow meter comprising a conduit adapted to conduct a flow of a fluid, a stop in the conduit, a body movably received in the conduit, normally kept in engagement with the stop by the fluid flow, and including at least a portion of a magnetically responsive material, an electromagnet located outside the conduit in a position upstream from the stop relative to the direction of the fluid flow and having poles at a location such as to impose a magnetic force on the magnetically responsive material of the body when it is energized, means for energizing the electromagnet so as to progressively increase the magnetic force that it produces until the magnetic force is sufficient to move the body against the fluid flow and attract the body to a position between the poles, means for detecting changes in the magnetic flux field of the electromagnet when the body moves away from the stop and toward the electromagnet and producing a sensing signal indicative thereof, and means responsive to the sensing signal for detecting the magnitude of the current supplied to the electromagnet and producing a measurement signal indicative thereof.
(A flow meter; comprising; a conduit adapted) (having poles at a location such as to impose a magnetic force on the magnetically responsive material of the body; means; ) (the current; supplied; to the electromagnet) (the magnetic force; is; sufficient to move the body against the fluid flow and attract the body to a position between the poles) (a conduit; adapted; to conduct a flow of a fluid) (an electromagnet; located; L:outside the conduit in a position upstream from the stop relative to the direction of the fluid flow) (it; is energized; ) (the magnetic force; produces; T:until the magnetic force is sufficient to move the body against the fluid flow and attract the body to a position between the poles) (A flow meter comprising a conduit; movably received; L:in the conduit; T:a stop in the conduit) (the magnetic force; to attract; the body; to a position between the poles) (the current; producing; a measurement signal indicative thereof) (the body; moves; away from the stop)
A flow meter having poles at a location such as to impose a magnetic force on the magnetically responsive material of the body the current the magnetic force a conduit an electromagnet it the magnetic force A flow meter comprising a conduit the magnetic force the current the body
comprising means supplied is adapted located is energized produces movably received to attract producing moves
a conduit adapted
to the electromagnet
sufficient to move the body against the fluid flow and attract the body to a position between the poles
to conduct a flow of a fluid
L:outside the conduit in a position upstream from the stop relative to the direction of the fluid flow
T:until the magnetic force is sufficient to move the body against the fluid flow and attract the body to a position between the poles
L:in the conduit T:a stop in the conduit
the body to a position between the poles
a measurement signal indicative thereof
away from the stop