A Bode plot can be
obtained thereby which helps in identifying the system. In
this work the voltage applied across the system has been
taken as the input quantity and the current flowing through
the system has been taken as the output quantity. The system
under test is excited by a sine wave generator implemented
through soundcard using software program and then various
voltages and current measurements have been taken through
the line-in terminals of the soundcard. Various compensation
methods have been implemented to eliminate different types
of noise introduced in the response.