CREEP COMPENSATION APPARATUS AND METHOD FOR CHANGING CREEP RATE OF WEIGHING APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide a creep compensation apparatus capable of accurately compensating a creep error changed due to a secular change or the like of a component.;SOLUTION: A creep error compensated load signal is generated by subtracting an approximate value of a creep error calculated based on a formula of a creep error compensation function including a creep rate as a parameter from a load signal of a load cell 1. A creep recovery error compensated load signal is generated by subtracting an approximate value of a creep recovery error calculated based on a formula of a creep recovery error compensation function including the creep rate as a parameter from the load signal. When a value of the creep recovery error compensated load signal obtained just after unloading is not a no-load load signal set value, a control device 3 changes a value of the creep rate so that an absolute value of a difference from the no-load load signal set value is reduced.;COPYRIGHT: (C)2013,JPO&INPIT