| 摘要 |
A double-tube type Coriolis flow meter for measuring mass flow comprising a straight flow tube 4 through which the fluid being measured flows, a hollow outer tube 5 secured at both ends thereof to act as a counterbalance, a drive unit 7, and a pair of sensors; the flow tube 4 being caused to vibrate by the drive unit 7 so that the mass flow of the fluid being measured by detecting a phase difference proportional to Coriolis force acting on the flow tube 4 by the sensors. This invention uses sheet members (coupling plates 6) to secure the flow tube 4 to both ends of the outer tube 5, and integrally forms the coupling plate 6 with tube-assembly supporting leaf springs 14 in the double-tube type Coriolis flow meter. By connecting the flow tube to the outer tube via the sheet members in this manner, this invention makes it possible to absorb stresses produced between the tubes, maintain uniform temperature distribution in the outer tube, and remarkably reduce manufacturing cost. <IMAGE> |
