Diagnostika elektrického spínacího oblouku

Abstract

The introduction of this bachelor thesis describes the plasma, explains the process of ionization in the plasma of the electric arc and describes the elastic and inelastic collisions. The next part is devoted to the electric arc, its characteristics and description. Electric arc is a difficult to predict and adverse phenomenon that occurs with switching devices when we open or close contacts. Furthermore, the work focuses on technical diagnostics. This chapter deals with the concept of diagnostics, its benefits in technology and the subsequent explanation of basic concepts in this field. Subsequently, the optical diagnostics of the arc, an explanation of the basic concepts and a description of older methods used in the evaluation of equidensitograms and the subsequent construction of equidensities are mentioned. Finally, a modern method of digital image processing is mentioned and an example of a modern high-speed camera is given.