Azbil Corporation

Nobuyuki Sugiyama

Toru Yamaguchi

Yoshio Yamasaki

A testing method for testing a liquid flowmeter, the method including introducing a test liquid and a sealant having a specific gravity smaller than that of the test liquid into a weighing tank until an outlet of a pipe is submerged in the test liquid; causing the test liquid to pass through the pipe; acquiring readings of a weighing scale configured to measure a weight of the weighing tank at multiple time points, and time information representing the time points; acquiring readings of the liquid flowmeter; calculating a standard flow rate of the test liquid based on the readings of the weighing scale at the multiple time points and the time information; and calculating an instrumental error between a measured flow rate based on the readings of the liquid flowmeter and the standard flow rate.

Growing community of inventors

Chiyoda-ku, Japan

Nobuyuki Sugiyama