| 摘要 |
<p>A mass flowmeter comprises a single conduit (1) with two extremities (2 and 3) affixed to a rigid frame (6), which conduit includes first and second sections (7 and 8) respectively extending towards one another from the two fixed extremities of the conduit in an over-hanging arrangement and connected to one another by a looped section (9) of the conduit. An electromagnetic vibrator (10) vibrates the first and second sections of the conduit relative to one another. A pair of the motion detectors (12 and 13) respectively measure the flexural vibrations of the first and second sections of the conduit. The mass flow rate of the fluid moving through the conduit is determined from the phase angle difference between the two flexural vibrations respectively measured by the two motion detectors.</p> |
