Karman's vortex flow meter

Details Karman's vortex flow meter Karman's vortex flow meter

1994-06-21

1996-10-08

Chilcot, Richard

Measuring and testing

Volume or rate of flow

By measuring vibrations or acoustic energy

285 49, G01F 132

Patent

active

055633501

ABSTRACT:
A Karman's vortex flow meter eliminates the problem of external vibration resonating an amplifier casing to lower measurement accuracy of a vortex detecting section. In the flow meter, O-rings fit in two annular grooves formed on an outer surface of a supporting stand hollow cylinder. A casing fits onto the hollow cylinder of the supporting stand with the two O-rings being placed therebetween. A pair of blind holes or recesses formed in the hollow cylinder diametrically oppose one another and are located between the two O-rings. Bolts inserted into the recesses with gaps spaced around their end portions serve as stoppers by limiting axial movement of the casing with respect to the hollow cylinder.

REFERENCES:
patent: 3372948 (1968-03-01), Arneson
patent: 4364276 (1982-12-01), Shimazoe et al.
patent: 4414851 (1983-11-01), Maglic
patent: 4438954 (1984-03-01), Hattori
patent: 4790821 (1988-12-01), Stines

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