FLOW RATE CALCULATION SYSTEM FLOW RATE CALCULATION SYSTEM PROGRAM FLOW RATE CALCULATION METHOD AND FLOW RATE CALCULATION DEVICE

摘要

In order to accurately calculate an estimated flow rate by a dynamic static method, a flow rate calculation system comprising a container through which a fluid flows, an inflow line through which the fluid flows into the container, and a pressure sensor detecting a pressure in the container, the Pressure change storing pressure change data indicating a time change of pressure detected by the pressure sensor during the inflow period from the inflow of fluid into the vessel from the inlet line until the inflow of fluid into the vessel is stopped. A data storage unit, a flow rate calculation unit that calculates an estimated flow rate of the fluid estimated to have flowed through the inflow line during the inflow period, based on a rate of change of pressure calculated from the pressure change data, and inflow of the fluid into the container The estimated flow rate calculated by the flow rate calculation unit is corrected based on the first pressure detected by the pressure sensor and a second pressure higher than the first pressure included in the pressure change data after a predetermined time elapses after stopping. It is provided with a flow rate correction unit.