System Level Simulation of Servo Accelerometer in Simulink

Abstract

This paper describes the derivation of a detailed model of a forced balance (servo) accelerometer and its implementation in a commercial MATLAB package. The sensing element is modeled at a system level, the control and interface electronics at a component level. The MATLAB simulation tool, SIMULINK allows very realistic insight into the system behavior. A shaketable model is made with the help of SIMMECHANICS tool. The accelerometer model is mounted on the shaketable and the system is connected to VIRTUAL REALITY tool to show the actual working of the system dynamically at the run time. The amplitude results with respect to frequency ratio have been plotted for various input forms and their implications have been studied.