Patent ID: 9664549
Date: 2017-05-30
CPC Classifications: G01F

Claim:
1. A fluid meter device including an inlet into which a fluid flows, and an outlet from which the fluid flows out, and being configured to derive a flow value of the fluid flowing from the inlet to the outlet, the fluid meter device comprising: plural measurement fluid passages provided in parallel between the inlet and the outlet, a cross sectional area of each measurement fluid passage having substantially equal diameter; separate flow value measuring units provided in the plural measurement fluid passages, respectively, and configured to independently measure separate flow values of fluids flowing through the measurement fluid passages, respectively; an average flow value calculation unit configured to derive an average flow value of the separate flow values, by summing up the separate flow values except for a largest value and a smallest value; and a comparison/determination unit configured to obtain index values indicating a relation between the average flow value and the separate flow values, and determine whether or not each of the index values is equal to or larger than a predetermined value.