Patent ID: 7128808
Filing Date: 2006-10-31
Classification: D21G

Abstract:
1. A method of identifying a mapping of a paper machine actuator in a paper making process, the method comprising: a) performing a mapping test to obtain a mapping test result; b) forming a first non-linear shrinkage profile of the paper web, the non-linear shrinkage profile having an effect associated therewith; c) linearizing the mapping test result, the mapping test result having the effect of the first non-linear shrinkage profile eliminated therefrom; d) forming a first mapping model not including the effect of the non-linear shrinkage profile; e) comparing the linearized mapping test result with the first mapping model to produce a first linear mapping error; f) forming a second mapping model including the effect of the non-linear shrinkage profile; g) comparing the second mapping model with the mapping test result to produce a second linear mapping error; h) forming an actual total error of linear errors from a difference between the first linear mapping error and the second linear mapping error; i) determining an allowable total error of linear errors; and j) comparing the actual total error of linear errors with the allowable total error of linear errors, and