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  5. ISO 15926-4 Edition 3
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  7. VOLUME FLOW MEASURING ELEMENT - VORTEX

VOLUME FLOW MEASURING ELEMENT - VORTEX

A class with identifier http://staging4.data.posccaesar.org/iso/15926-4/rdl/RDS418184

MetadataThis section provides information about 'RDS418184'.

DefinitionA <VOLUME FLOW MEASURING ELEMENT - VORTEX> is a <VOLUME FLOW MEASURING ELEMENT - VELOCITY> that involves placing a bluff body (called a shedder bar) in the path of the fluid. As the fluid passes this bar, disturbances in the flow called vortices are created. The vortices trail behind the cylinder, alternatively from each side of the bluff body. The frequency at which these vortices alternate sides is essentially proportional to the flow rate of the fluid. Inside, atop, or downstream of the shedder bar is a sensor for measuring the frequency of the vortex shedding. This sensor is often a piezoelectric crystal, which produces a small, but measurable, voltage pulse every time a vortex is created. Since the frequency of such a voltage pulse is also proportional to the fluid velocity, a volumetric flow rate is calculated using the cross sectional area of the flow meter
ISO number4869
RDS numberRDS418184
SourceInstrumentation

AlignmentThis section lists the most specific P2-superclasses of 'RDS418184' together with an alignment with corresponding classes in P14, if available.

FunctionalObjectlis14:FunctionalObject
InanimatePhysicalObjectlis14:InanimatePhysicalObject

ContextThis section provides super- and subclasses of 'RDS418184'.