FLOW RATE MEASURING DEVICE AND FLOW RATE CALCULATION METHOD

摘要

A flow meter device includes: a first vibrator (2), a second vibrator (3), a control unit (100), a timekeeper (10), and an arithmetic operation unit (200). The arithmetic operation unit is configured to: determine whether or not a time difference between a propagation time in the forward direction and a propagation time in the reverse direction is less than a predetermined value; calculate a propagation time correction amount based on the time difference if it is determined that the time difference is less than the predetermined value; and calculate a flow rate of the fluid by using the propagation time correction amount.