Frequency Domain Analysis
Normally been used when the testing input is sinusoidal
Does not require/depend on the model of systems, so this
approach is easier for high order or unknown systems.
Provide information about system sensitivity to noise
Frequ
Hazards Of Medical Devices
1. INTRODUCTION
2. NATURE OF ELECTRICITY
INTRODUCTION
Electrical energy,
like any other form of
harnessed energy, is
potentially
dangerous.
Although injuries
caused by electricity
represent a small
fraction of all injuries
in th
Tutorial 1
1)
Briefly describe travel of action potential in human cell and what could trigger the travel. In
the example of cardiac cell, elaborate the importance for simulation to be after a certain
time frame and why?
2)
Describe level of physiological
Physiological Effects
of Electricity
Effects of electric current on the body
manifest themselves in three different ways:
1. Injury to tissue
2. Uncontrollable muscle contraction
3. Ventricular fibrillation
All of these effects are due to disturbance of
t
Root-Locus Technique
Root locus analysis is a graphical method for examining how the roots of a system change with
variation of a certain system parameter, commonly the gain of a feedback system. This is a
technique used in the field of control systems de
Time Response Analysis
In most control problems the time domain response is used as the
measure of a system performance. Time response could be
divided into 2:
1. Transient Response
- the response before convergence or steady
2. Steady-state Response
- th
Mathematical Modeling
Modeling of Electrical Systems
Basic Components of electrical systems are as follows.
Modeling of electrical system is based on Kirchhoffs Law, i.e either
using Nodal Analysis or Mesh Analysis depending on which one is
easier for eac
Stability of Linear Control System
Unstable system is useless. Amongst the important specifications
of the controller design is that the overall system must be stable.
This subject will discuss the stability of LTIV SISO systems.
Bounded-Input Bounded-Out
Transfer Functions, Block Diagram
and Signal Flow Graph (Week 2 & 3)
Transfer Function
A general n-th order LTIV differential equation (DE),
an
d n c(t )
d n 1c(t )
an 1
a0c (t )
dt n
dt n 1
d m r (t )
d m 1r (t )
bm
bm 1
b0 r (t )
dt m
dt m 1
(2.50)
Review on Laplace Transforms
Definition: The Laplace transform is defined by the linear transformation
where
(i.e.
is an arbitrary complex number and f(t) is of exponential order
is bounded for large t).
Some Laplace Transform Pairs
Unit Impulse
where
Uni