Micromechatronic

I.Course Introduction (including teaching goals and requirements) within 300 words:

This course is dedicated to gradate students who major in electrical machine and equipment.

1.Understand the basic concept of micromechatronics and theoretical description of field-induced strains.

2.Understand the basic concept of piezoelectricity、ferroelectric phenomena and phenomenology of magnetostriction.

3.Grip the ceramic actuator structures and fabrication methods, drive/control techniques for piezoelectric actuators.

4.Learn the ultrasonic motor applications, servo displacement transducer applications.

II.Teaching Syllabus (including the content of chapters and sections. A sheet can be attached):

1.Current trends for actuators and micromechatronics

a)The need for new actuators

b)Conventional methods for micropositioning

c)An overview of solid-state actuators

d)Critical design concepts and the structure of the text

2.A theoretical description of field-induced strains

e)Ferroelectricity

f)Microscopic origins of electric field induced strains

g)Tensor/Matrix description of piezoelectricity

h)Theoretical description of ferroelectric and antiferroelectric phenomena

i)Phenomenology of magnetostriction

j)Ferroelectric domain reorientation

k)Grain size and electric field-induced strain in ferroelectrics

3.Actuator materials

l)Practical actuator materials

m)Figures of merit for piezoelectric transducers

n)The temperature dependence of the electrostricive strain

o)Response speed

p)Mechanical properties of actuators

4.Ceramic actuator structures and fabrication methods

q)Fabrication of ceramics and single crystals

r)Device design

s)Electrode materials

t)Commercially available piezoelectric and electrostrictive actuator

5.Drive/Control techniques for piezoelectric actuators

u)Classification of piezoelectric actuators

v)Feedback control

w)Pulse drive

x)Resonance drive

y)Sensors and specialized components for micromechatronic systems

6.Loss mechanisms and heat generation

z)Hysteresis and loss in piezoelectrics

aa)Heat generation in piezeoelectrics

bb)Hard and soft piezoelectrics

7.Introduction to the finite element method for piezoelectric structures

cc)Background information

dd)Defining the equation for problem

ee)Application of the finite element method

8.Servo displacement transducer applications

ff)Deformable mirrors

gg)Microscope stages

hh)High precision linear displacement devices

ii)Servo systems

jj)VCR head tracking actuators

kk)Vibration suppression and noise elimination systems

9.Pulse driver motor applications

ll)Imaging system applications

mm)Inchworn devices

nn)Dot matrix printer heads

oo)Inkjet printers

pp)Piezoelectric relays

qq)Adaptive suspension systems

10.Ultrasonic motor applications

rr)General description and classification of ultrasonic motors

ss)Standing wave motors

tt)Mixed-mode motors

uu)Traveling wave motors

vv)Mode rotation motors

ww)Performance comparison among various ultrasonic motors

xx)Microscale walking machines

yy)Calculations for the speed and thrust ultrasonic motor

zz)Elements of designing an ultrasonic motor

aaa)Other ultrasonic motor applications

bbb)Magnetic motors

ccc)Reliability of ultrasonic motors

11.The future of ceramic actuators in micromechatronic systems

ddd)Development trends as viewed from patent statistics

eee)The piezoelectric actuator/ultrasonic motor market

fff)Future trends in actuator design

12.Teaching Schedule: