| 摘要 |
VORTEX FLOWMETER A vortex flowmeter comprises a vortex generator (1) of an elongated cylindrical shape disposed across a first cross section of a flow passage (2) and a vortex sensor (4) of a planar geometry disposed across a second cross section of the flow passage (2) generally parallel to the vortex generator (1), wherein at least one extremity of the vortex sensor is secured to the wall (3) of the flow passage (2) and a deflective portion (7) of the vortex sensor (4) is connected to a force transmitting member (9) extending from a transducer (10) by a mechanical coupling (11). The volume flow rate is determined from the frequency of the fluctuating electic signal generated by the transducer (10) as a result of vortices generated by the vortex generator (1) and the mass flow rate is determined from a combination of the frequency and amplitude of the fluctuating electric signal generaged by the transducer (10). |
