Analysis of Second Order Filter in Remote Laboratory

Abstract

In this paper, performance analysis of second order analog filters using Remote Laboratory is presented. The Remote laboratory system developed indigenously has the many analog experiments that can be conducted by authorized user from anywhere at any time. The remote laboratory system also has second order Low pass filter (LPF) and High pass filter (HPF). It possible to perform filter experiments with three different values of resistors, two capacitors with different values. Along with this there is option of modifying the voltage gain of the filter. This will enable the user to analyze the filter performances thoroughly. Both time and frequency response are obtained to determine pass band gain, pole and zero locations and the roll-off the filter. Using this user can know the effect of voltage gain on the circuit and obtain maximally flat response also. Remote laboratory system for filters is built using an ingeniously developed PCB and uses Arduino board for selecting and switching experiments and Analog Discovery a product ot National Instruments is used for applying and measuring the signals during the conduction of experiments. The user has the freedom in applying signals of desired signals. Paper also presents typical analysis report of filters conducted remotely.