| 摘要 |
Drag is produced in a gas stream by a bluff body (47), and is converted to low pressure stable and continuous vortices by a restriction (56). The difference in gas pressure is sensed (14) between a point (15) outside the flow passage in communication therewith and a point (16) inside the flow passage between the restriction and the bluff body. The resultant flowmeter may be connected in line (FIG. 1) or as a bypass (FIGS. 2 and 5) in a gas system. |
