Development of Analogue Computer for the Simulation of Linear Circuits and Systems
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2015, Vol 3, Issue 11
Abstract
In order to better understand the physical world, scientists use mathematical models to predict the reaction of various physical systems, such as the motion of a mass attached to a spring, to external stimuli. Such systems are reduced appropriate differential equations. However, to actually show graphical representation of the solutions to these models becomes computationally complex. An analogue computer consisting summers, integrators and coefficient potentiometer was constructed to solve this problem. Using different types of differential equations and assuming different initial conditions the system’s response to sine, triangle and square waves of frequencies between 2Hz to 10KHz were determined. Applying the computer to a control transfer function, the response was obtained for different values of gain K from 0.3 to 0.9, it was shown that the overshoot, the delay time, the rise time, settling time and frequency response all vary significantly with K. The analogue computer system designed includes the following major units: summers, integrators and coefficient potentiometers. Also, sine wave, square wave, and triangular wave at low frequency from 0.01Hz to 200Hz were included in the design. A computer switch mode power supply was used as the dc voltage source. The output from the analogue computer is in the form of a voltage, which must be read and recorded by the use of oscilloscope or X-Y plotter.
Authors and Affiliations
Rufus Sola Fayose
Keywords
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