Estimating the relative shrinkage profile of newsprint

Anders P. Kaestner; Carl Magnus Nilsson

doi:10.1117/1.1567260

1 May 2003 Estimating the relative shrinkage profile of newsprint

Anders P. Kaestner, Carl Magnus Nilsson

Optical Engineering, Vol. 42, Issue 5, (May 2003). https://doi.org/10.1117/1.1567260

When water is removed from the paper during paper making, a dimensional change occurs in which the paper shrinks in the direction perpendicular to the direction of processing. The dimensional changes vary across the web and influence, e.g., the surface and compression properties of the paper; they also complicate the control of the paper machine. In this article, a robust method for estimating the relative shrinkage profile is presented. The method is based on a one-dimensional recording of the imprints from the forming fabric, using a fluorescence technique. The recording is transformed into a time-frequency spectrum, on which three different frequency estimators have been evaluated. In simulations on synthetic data and measurements on paper profiles the estimator that maximizes the correlation energy showed the most robust and accurate performance of the methods evaluated, even at a low signal-to-noise ratio.

©(2003) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Anders P. Kaestner and Carl Magnus Nilsson "Estimating the relative shrinkage profile of newsprint," Optical Engineering 42(5), (1 May 2003). https://doi.org/10.1117/1.1567260

Published: 1 May 2003

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available