To provide a Coriolis flowmeter for accurately determining the state of air bubbles in a fluid to be measured regardless of whether the pressure of the fluid to be measured is high or low in the Coriolis flowmeter.
A Coriolis flowmeter 10 vibrates a measurement tube, through which the fluid to be measured flows, detects vibrations including Coriolis force developed by the vibrations in the fluid to be measured, and measures a mass flow rate of the fluid to be measured on the basis of a detection signal. The Coriolis flowmeter is characterized by including: a fluctuation calculation means 50 for calculating fluctuations based on a detection signal SA; a status value calculation means 60 for calculating a status value indicating a state of air bubbles in the fluid to be measured on the basis of the fluctuations calculated by the fluctuation calculation means 50; and a determination means 70 for determining a state of air bubbles on the basis of the status value calculated by the status value calculation means 60.
| WO/2019/120783 | CORIOLIS MASS FLOWMETER |
| JP2576458 | [Name of invention] Mass flow meter |
| JP6038940 | The juxtaposition sensor of an oscillating type flow instrument |
IINO TOSHIO
YOSHINO AKINORI
| JPH02221818A | 1990-09-04 | |||
| JP2002062167A | 2002-02-28 |