Electromagnetic flowmeter arrangement
AssigneeDanfoss A/S
InventorSteen M. Matzen
Life of this patent
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Abstract
An electromagnetic flowmeter arrangement is disclosed, having a measuring tube (2), a coil arrangement (3, 4) for generating a magnetic field substantially perpendicular to the direction of flow through the measuring tube (2), an electrode arrangement (5, 6) substantially perpendicular to the direction of flow and to the magnetic field, an evaluating device and a testing device. In this connection, it is desirable to be able to carry out testing in a simple manner. For that purpose, the testing device comprises a elements (10-13) for applying voltage to the coil arrangement (3, 4) without generating a magnetic field, and an element for determining an ohmic and/or inductive and/or capacitive coupling between the coil arrangement (3, 4) and the coil evaluating device.
Claims12
An electromagnetic flowmeter arrangement, having a measuring tube, a coil arrangement for generating a magnetic field substantially perpendicular to the direction of flow through the measuring tube, an electrode arrangement substantially perpendicular to the direction of flow and to the magnetic field, an evaluating device and a testing device, the testing device comprising first means for applying voltage to the coil arrangement without generating a magnetic field, and second means for determining at least one of an ohmic, inductive and capacitive coupling between the coil arrangement and the evaluating device.
Dependencies are inferred from the claim text.