NC State
J.A. Van den Akker. Opening remarks to session 3. In Papermaking Systems and their Control, Trans. of the IVth Fund. Res. Symp. Oxford, 1969, (F. Bolam, ed.), p 117, FRC, Manchester, 2018.


I should like to amplify the title of this session . The papers we shall hear deal with the principles of the connection between measurement on the one  hand and computer control on the other and the assumption that the measuring  subsystems are accurate and reliable . The programme committee realises  the importance of measurement per se, but has considered the subject too  large to be included in this symposium.

It is often the case that the output of a measuring subsystem is a fairly strong function of variables other than the one that the system is intended to measure, a fact that should be kept in mind.

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