VISIDYN — Ett program för interaktiv analys av reglersystem

Sammanfattning: The thesis is made within the Department of Automatic Control in Lund. A program "VISIDYN" is written in C for Sun 3/50. The program is to be used in education, but it can also, with a few extensions, be used as a tool by more experienced designers. VISIDYN is a graphics based system for exploring linear dynamic systems. The basic idea is that a linear dynamic system can be examined from many different points of view. To work with systems it is useful to be able to jump from one viewpoint to another. The key idea is to provide a collection of windows each corresponding to one view of the system and to provide interconnections so that if one view is modified then the other views will automatically follow. The system illustrates the properties of a simple closed loop system. This suggests two views, the open loop and the closed loop. For each of these two views the program shows singularity diagrams, Bode diagrams, and the numeric values of the poles and zeros.