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Pneumatic and Hydraulic Control Systems, Volume 2, documents the proceedings of a symposium on pneumohydraulic automation. The symposium is a continuation of the first symposium of papers on pneumohydraulic automatics which was published in 1959 by the Academy of Sciences, USSR. The present collection forms part of the lectures and reports presented at the second and third All-Union Conference on pneumohydraulic automatics and embraces a wide range of problems associated with the design and application of pneumohydraulic equipment in the automation of industrial units and other objects. This volume contains 23 chapters organized into four parts. Part I contains papers on the general problems of pneumo- and hydro-automatics. Part II presents studies on pneumatic and hydraulic methods and systems of automatic regulation. Part III is devoted to pneumatic computing devices and methods of computation. The papers in Part IV cover pneumo- and hydro-automatics in the German Democratic Republic and Czechoslovakia.

Theory of Automatic Control focuses on the theory of automatic control, including controllers, models, control processes, and analysis of systems. The book first offers information on the general introduction to automatic controllers and the construction of a linear model control system and the initial material for its analysis. Discussions focus on astatic controllers of indirect action, floating feedback, controllers of discontinuous action, static characteristics of elements and of systems, and frequency characteristics of a linear element and of the linear model of a system. The text then ponders on the stability of the linear model of an automatic control system and the construction and evaluation of the processes in the linear model of a system of automatic control. Topics include construction of the process from the transfer function of the system; construction of the control process from the frequency characteristics of the system; and analysis of systems with random disturbances given statistically. The publication takes a look at auto- and forced oscillation in non-linear systems, including approximate determination of forced oscillations in the presence of an external periodic action and determination of the auto-oscillations in the case of auto-resonance. The manuscript is a dependable reference for readers interested in the theory of automatic control.

Pneumatic and Hydraulic Control Systems, Volume 1 covers the collection of Russian works on the subject of pneumatic and hydraulic automatic control. The book discusses applications and means of pneumatic control; systems of pneumatic and hydraulic automation; devices of pneumatic and hydraulic control units; and the regulation of final mechanisms. The text also describes the automatic compressed air plant; nozzle-baffle elements of pneumatic and hydraulic devices; the variations of the effective areas of diaphragms; and characteristics of diaphragms used in sensing elements of controllers. The elements of pneumatic and hydraulic devices are also considered. Automatic control specialists will find the book useful.