On-line sensing of paper machine wet-end properties: Dry-line detector
Research output: Contribution to journal › Article › peer-review
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In: IEEE Transactions on Control Systems Technology, Vol. 5, No. 6, 01.11.1997, p. 571-585.
Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - On-line sensing of paper machine wet-end properties: Dry-line detector
AU - Kjaer, A.P.
AU - Wellstead, P.E.
AU - Heath, W.P.
PY - 1997/11/1
Y1 - 1997/11/1
N2 - This paper is concerned with the task of sensing in web-forming process control loops. Conventional and newly proposed measurement techniques are discussed and a new type of measurement is suggested. The new measurement method adresses the problem of paper machine "wet-end" sensing and is based on a CCD camera system which can detect the dry-line. Both the theoretical and practical aspects of the invention are investigated and the sensing system is developed into a portable measurement system which is applied to a paper machine. The paper machine measurements are analyzed and presented using nonparametric techniques based on analysis of variance. Compared to traditional scanning gauge systems the dry-line detector allows for a large reduction in the transport delay, higher data density and sampling rate, and better machine directional (MD), and cross-directional (CD) signal decomposition
AB - This paper is concerned with the task of sensing in web-forming process control loops. Conventional and newly proposed measurement techniques are discussed and a new type of measurement is suggested. The new measurement method adresses the problem of paper machine "wet-end" sensing and is based on a CCD camera system which can detect the dry-line. Both the theoretical and practical aspects of the invention are investigated and the sensing system is developed into a portable measurement system which is applied to a paper machine. The paper machine measurements are analyzed and presented using nonparametric techniques based on analysis of variance. Compared to traditional scanning gauge systems the dry-line detector allows for a large reduction in the transport delay, higher data density and sampling rate, and better machine directional (MD), and cross-directional (CD) signal decomposition
U2 - 10.1109/87.641402
DO - 10.1109/87.641402
M3 - Erthygl
VL - 5
SP - 571
EP - 585
JO - IEEE Transactions on Control Systems Technology
JF - IEEE Transactions on Control Systems Technology
IS - 6
ER -