Transcription of Vortex Flowmeter - Yokogawa Electric
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Vortex Flowmeter - Yokogawa Electric
Bulletin Rights Reserved, Copyright 2007, Yokogawa Electric to change without FlowmeterSeriesVortex FlowmeterdigitalYEWFLOSe riesPiezoelectricelementsShedder barDetector tubeKarmanVorticesShedder barFlow2 Standard Type / Multi-variable TypeHigh Process Temperature / Cryogenic TypeReduced Bore TypeLarge Size (400 mm)Measurement principleWhen a shedder bar is placed in a flow, Karman vortices are generated on the downstream side of the bar. The Karman vortices are detected by two piezoelectric elements installed in the upper part of the shedder bar. The Vortex frequency is proportional to the flow velocity in a specific range of Reynolds numbers. Therefore, flow velocity or flow rate can be determined by measuring Vortex of the Vortex Flowmeter Easy installation, with flange or wafer process connections.
Input signal Frequency analysis (SSP function) Judged to be noise Judged to be vortex signal Judged to be noise Removed Output Removed Fieldbus communication compatible
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