Abstract
In this work, possible options for constructing optical systems for analysing the dynamic signals of objects characteristic of the conditions of material processing are proposed. A feature of such systems is the use for automated process equipment. Thus, the use of analysers based on acousto-optical processes, as well as on the basis of fiber Bragg elements, has been proposed. The paper presents the main analytical dependencies for determining the current state of the object. Also, graphical dependences of the experimental results of the study using an acousto-optic system are shown, which show possible changes in the state of objects as a result of their operation.