The problem of a flow measurement of electroconductive mediums with complicit kinematic flow structure is exclusive is relevant, as for the purposes of the count (in a municipal services, for the solution of ecological problems etc.), and for the technological purposes (in chemical, iron and steel industry, by effecting microelectronics etc.). Development and improvement of electrical power and heat power objects, evaluation of ecological problems demands more and more precise and reliable means of flow measurement of a water and heat carriers on the basis of water in pressure pipings. The signal, excited between electrodes of an electromagnetic flowmeter by a fluid flow, is determined by distribution of flow velocity on cross section of a channel, average with so-called volumetric weighting function dependent only on geometry of a channel of a flowmeter. This property is not characteristic for other converters of the consumption, in which one the usually local flow velocity is measured. In a channel of the device there are not any configuration items, that are handicapping a flow. The indications of electromagnetic flowmeters practically do not depend on change of physical characteristics of measured medium: of the. density, viscosity, electrical conductivity, they depend on distribution of flow velocity in a channel very little.
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