Inflow determination of the left and right eigenvectors in the Coriolis flowmeter

摘要

PROBLEM TO BE SOLVED: To provide a method and a system for calibrating inflow zero off-set during a flow period in a Coriolis flowmeter.;SOLUTION: A method for determining a relative phase of a left characteristic vector of a pipe line comprises: a step of flowing material through the pipe line during a period in which pipe line is vibrated by at least two drive parts arranged apart from each other; steps 204 and 206 of measuring movement of the vibrating pipe line; and a step 208 of periodically determining the relative phase of the left characteristic vector with respect to the pipe line.;COPYRIGHT: (C)2015,JPO&INPIT