Frequency response of a blood pressure pulse to small change in the waveform´s time constant

The authors investigate how the magnitude of the frequency response of a blood pressure pulse decreases in one of the waveform´s time constant. The amplitude of the first ten harmonics, especially, is addressed. Graphical representations of the investigation are included. The magnitude of the derivatives of the harmonics´ amplitude with respect to the time constant of the ascending part of the waveform is plotted