Online devices and measuring systems for the automatic control of newspaper printing

Author(s):  
Elzbieta A. Marszalec ◽  
Ismo Heikkila ◽  
Helene Juhola ◽  
Tapio Lehtonen
2021 ◽  
Vol 23 (4) ◽  
pp. 56-67
Author(s):  
Vladimir N. Nesterov

The article presents the theoretical foundations for constructing invariant and quasi-invariant relative to the disturbing influences of measuring systems. A historical reference which shows the emergence, evolution and spread of methods of the theory of invariance from automatic control and regulation systems to information and measuring systems and measurements in general is given. The possibilities of new applications of the formulated by academician B.N. Petrov of the two-channel principle are shown. On its basis, methodological signs of the physical feasibility of structural and technological methods are formulated. Theoretical foundations and the method of linearization of principally nonlinear transformation functions of parametric measuring transducers, which are also based on the principle of two-channel, are given. All theoretical positions are supported by practical examples that extend the capabilities of the considered methods to the entire class of parametric measuring transducers as part of non-equilibrium measuring bridges and voltage dividers.


Author(s):  
J. Galván-Mancilla ◽  
J. C. Torres-Guzmán

The continuous development of the technology and the increase of its complexity demand wider measurement intervals, a greater exactness and a greater diversity of the standards used in order to establish the units or measuring systems. Torque metrology is of great importance and a magnitude is of common use for industry, technical development and research. The realization, quantification and dissemination of this magnitude are tasks assigned to the Metrology National Center (CENAM) Torque Laboratory, in Mexico. For the dissemination of this magnitude the Torque National Standard relies on a system, which, in its original design, was operated manually originating high consumption of man-hours in the development of a calibration. This work presents the standard automation and the benefits of the automatic control system.


1967 ◽  
Vol 28 (C2) ◽  
pp. C2-321-C2-321
Author(s):  
J. V. RAMSAY

2016 ◽  
Vol 2016 (6) ◽  
pp. 69-75
Author(s):  
I.O. Bragynets ◽  
◽  
O.G. Kononenko ◽  
Yu.О. Masjurenko ◽  
◽  
...  

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