E1C02 09/14/2010
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0
Distance
Distance
Distance
Fundamental frequency
Third harmonic
Amplitude
1/9
0
Amplitude
1
0
Amplitude
1
–1/9
0
Distance
Fifth harmonic
Seventh harmonic
Amplitude
1/25
–1/25
0
Distance
Amplitude
1/49
–1/49
Figure 2.11 Modes of vibration for
a string plucked at its center.
54 Chapter 2 Static and Dynamic Characteristics of Signals