STUDY OF DYNAMIC SYSTEMS USING VIRTUAL INSTRUMENTATION

Programs created in LabVIEW environment, called virtual instruments, offers multiple possibilities for building user interfaces or HMI that can be used for many applications including dynamic systems analysis. In this paper we present a virtual instrument used in the process of studying the dynamics of systems through modelling and simulation. Based on the functional structure of D.C. motor and the laws of physics and electricity under which this motor works is build the mathematical model for it. Using the mathematical model, build it in Matlab environment and included in virtual instrument like a Matlab script, in a series of simulation experiments in LabVIEW, it can notice the behaviour of the motor dynamics like angular displacement, velocity and acceleration. Same virtual instrument, through a data system acquisition, allow compare, on the front panel, the results obtained by simulation with actual measured values of these quantities.