G - Physics – 01 – F
Patent
G - Physics
01
F
73/125
G01F 1/32 (2006.01) G01P 5/01 (2006.01)
Patent
CA 1197111
DUAL-BODY VORTEX-SHEDDING FLOWMETER Inventors: Peter J. Herzl and Warren O. Strohmeier, citizens of the United States of America and residents, respectively, of Morrisville, Pa. and Warminster, Pa. ABSTRACT A vortex-shedding flowmeter for accurately measuring the flow rate of gases and liquid conducted through a flow tube provided with a dual-body shedder having a front section fixedly mounted across the tube, behind which is a pivotally mounted rear section separated from the front section by a gap configured to produce a fluidic feedback path so that a strong hydraulic interaction takes place between the sections and both actively contribute to the formation of periodic vortices which are alternately shed on either side of the shedder. The rear section is mounted on a pivot shaft extending along an axis normal to the flow axis of the tube, whereby the vortices which appear on either side of the rear section induce the ear section to oscillate. These oscillations are sensed to produce a signal representing the flow rate. - 1 -
436848
Herzl Peter J.
Strohmeier Warren O.
Fischer & Porter Company
Smart & Biggar
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