| 摘要 |
PCT No. PCT/GB89/00223 Sec. 371 Date Dec. 31, 1990 Sec. 102(e) Date Dec. 31, 1990 PCT Filed Mar. 6, 1989 PCT Pub. No. WO90/01146 PCT Pub. Date Feb. 8, 1990.An asymmetrical displacement flowmeter comprises a streamlined body or assembly 1 which floats or is submerged in liquid 3 and is subjected to frictional and dynamic pressure forces caused by liquid flow and tilts about axis 9 near the leading end of the body being anchored relative to the flow through tie 7 and anchor 6 or other means acting through axis 9. Degree of tilt from the vertical of body 1 about the axis is affected by the gravity restoring moment acting about the axis and can be adjusted by movement of weight 14 within the body. Pointer 12 attached to pendulum 13 about axis 9 indicates velocity of flow on scale 2 attached to body 1. In open channel depth is measured on scale 11. In closed conduit, body rotates about shaft through wall and may be folded during installation. Velocity and depth may be transmitted electronically. |
