2D variations in web: characterisation and measurement

Authors & references

Edited by:

Risto Ritala, Tampere University

Based on: Ritala, R., Managing paper machine operation (Chapter 8). In: Leiviskä, K. (ed), Process and Maintenance Management, (Book 14), Papermaking Science and Technology. 2nd edition. Jyväskylä, 2009, Paper Engineer’s Association/Paperi ja Puu Oy. pp. 189–234.

References:

1. Seber, G.A.F. 1984. Multivariate observations. Ch. 9 Multivariate analysis of variance and covariance, Wiley. pp. 433–495.
2. Ryti, N. and Kyttälä, O. 1971. Variance component analysis, a method to assess the stability of papermaking process. Paperi ja Puu 53(6).
3. Higham, J.D. 1985. The changing face of paper machine controls — cross direction and beyond, In: TAPPI Process Control Symposium Notes, pp. 123–126.
4. Wang, X. G., Dumont, G. A. and Davies, M. S. 1993. Estimation in paper machine control. IEEE Control Systems Magazine 13(4):34–43.
5. Dumont, G., Ball, J., Emmond, G. and Guilemette, M. 2004. Improved CD control using wavelet-based MD/CD separation. In: Proceedings of the Control Systems 2004. Quebec City, Canada, June 14–17. pp. 57–62.
6. Duncan, S. and Wellstead, P. 2004. Processing data from scanning gauges on industrial web processes. Automatica 40(3):431–437.
7. Gendron, S. 2005. Fundamental properties of scanner signals for the separation of paper machine CD and MD variations. In: Proceedings 91st Annual Meeting, Pulp and Paper Technical Association of Canada. 2005, Montreal, Canada, February 7–11. pp. A289–A293.
8. Ylisaari, J., Konkarikoski, K. and Ritala, R. 2008. Scanner path as a manipulatble variable for optimal control and diagnostics of CD variations. In: Proceedings 2008 Control Systems Pan-Pacific Conference. Vancouver, Canada, June 16–18. pp. 81–85.
9. Nuyan, S. and Sorsa, J. 2008. Intelligent scanning, TAPPI Paper 360o. December 2008. pp. 12–13