For the control of the operation of technological systems in the produ
ction of new type materials an analytical network is necessary which p
roduces continuous information Aux of the required quantity and qualit
y. In the design of the network the selection of the right number, pos
ition and operation characteristics of the instruments and the adjustm
ent of the network to the system to be controlled is indispensable. Th
is can be done by model investigations and optimisation. In the constr
uction of models artificial neural networks can be used advantageously
.