Harmonic Overtones and Resonance

Section 13:

Changes In Shape of Square Wave with
2^nd Order Band-Pass Resonance

This page features 6 charts, which show a square wave without resonance followed by charts that show the phase and amplitude changes caused by a band-pass resonance at 1 and 2 octaves below the resonant frequency, at the resonant frequency, and at 1 and 2 octaves above the center frequency.

Square wave without resonance

Figure 13-1

Reshaped square wave with fundamental 2 octaves below
1-octave 2^nd order band-pass resonance.
Q = 1.414

Figure 13-2

Reshaped square wave with fundamental 1 octave below
1-octave 2^nd order band-pass resonance.
Q = 1.414

Figure 13-3

Reshaped square wave with fundamental at center frequency
of 1-octave 2^nd order band-pass resonance.
Q = 1.414

Figure 13-4

Reshaped square wave with fundamental 1 octave above
1-octave 2^nd order band-pass resonance.
Q = 1.414

Figure 13-5

Reshaped square wave with fundamental 2 octaves above
1-octave 2^nd order band-pass resonance.
Q = 1.414

Figure 13-6

Harmonic Overtones and Resonance

Section 13:

Changes In Shape of Square Wave with2nd Order Band-Pass Resonance

Changes In Shape of Square Wave with
2^nd Order Band-Pass Resonance