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LUGB vortex flowmeter
he basic principle of vortex flowmeter is Carmen vortex phenomenon, when the medium flowing through the triangle with a certain speed, there are diplostichous regular swirl alternately in both sides of the triangle, the swirl arranged unsymmetrically in the downstream of the triangle, the piezoelectricity detector can detect the sepatared frequence of the swirl ,and according to the frequence can feflect the flow rate.

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