
11-6 Sensors and Sensor Technology
11.3 Mechanical Energy Harvesting
Mechanical energy harvesting is a very active research topic that has spawned numerous reviews
(e.g., [1
2])
. It is ba
sed
on ki
netic
en
ergy
[1
3],
th
e
so
urces
of wh
ich
in
clude
li
quid
or ga
s
o
w,
vi
brations,
hu
man
ac
tivity,
an
d
pr
essure
va
riations
(e.g., ac
oustic
no
ise
an
d
at
mospheric
pr
essure)
. Av
ailable
po
wer
in o
w
en
ergy
in
creases
cu
bically
wi
th
an in
crease
in th
e
sp
eed
of th
e
li
quid
or ga
s
. Lo
w-level
vi
brations
oc
cur
in ma
chinery,
ou
tdoor
wi
ndows,
an
d
tr
ansport
ve
hicles;
th
ey
pr
oduce
fr
equencies
be
tween
50 an
d
200 Hz and acceleration amplitudes between 1 and 10 m/s
2
. Hum ...