| 摘要 |
<p>This invention relates to a dynamic vibratory meter for measuring the mass of material flowing therethrough.
<??>A dynamic vibratory meter includes an S-shaped conduit (12) to contain a mass of fluid material, the conduit consisting of three co-planar legs, an inlet leg (14), and outleg (18), and an interconnecting return leg (22). The meter also includes vibration means (24) for vibrating the conduit in a direction transverse to the plane of the three legs. The vibration means provides an increasing gradient of transverse velocity between the inlet leg and a maximum velocity point along the return leg, and provides a decreasing gradient of transverse velocity between the maximum point and the outlet leg. By providing means for sensing the vibratory force couple on the conduit about an axis perpendicular to the direction of vibration, it is possible to obtain a measure of the mass flow through the conduit. </p> |
