Biomedical Engineering Reference
In-Depth Information
1
0.5
0
5
10
15
20
25
-0.5
-1
t/s
Figure 3.2
Simple harmonic motion
It should also be clear from Figure 3.3 that the average value of (
R
-
R
e
)
2
is not zero.
A direct calculation using < sin
2
(ω
t
)>
=
1
/
2
gives
(
R
R
e
)
2
=
2
A
2
B
2
1
−
+
(3.5)
1
0.8
0.6
0.4
0.2
0
5
10
15
20
25
t/s
Figure 3.3
Variation of (R - R
e
)
2
with time
