DEVELOPMENT OF THE T-RING VORTEX METER

A new type of vortex-shedding meter has been developed, in which the b luff body is in the form of an annular ring with a T-shaped cross-sect ion. Because this is axi-symmetric it disturbs the flow much less than a transverse bluff body. This leads to a meter which is considerably more repeatable, and hence potentially more accurate, than a conventio nal vortex meter. It also has excellent linearity, and an exceptionall y low pressure drop. The paper describes the design and performance as well as the current problems with development of a vortex detector.