Erni Yudaningtyas, Waru Djuriatno, Rudy Yuwono
Pulse wave is a time domain periodic wave which the pattern is described qualitatively. Transformations is required to get the pulse wave measured quantitatively. It can be realized by using Fast Fourier Transform (FFT). That is a numerical computational method based on Fourier transform which transform the time domain periodic wave into frequency domain. Recording the pulse wave in the time domain is done on the subject of studies in which the results of the electrocardiograph (ECG) recording showed a normal heart function. Pulse wave is obtained by pressing the blood vessels using pressure sensors in the radial artery area. Pulse wave patterns in the radial artery area have a systolic time about 0.16seconds. The special characteristic pattern of pulse wave can only be known quantitatively if the pulse wave pattern is consistent. Frequency spectrum and its constituent frequency spectrum amplitude pulse waves were obtained using the FFT method. Through this method, special characteristic of the pulse wave frequency spectrum from the subject of study was known between (1.5 to 2.1) Hz. This method is more informative because it can show special characteristics quantitatively rather than the pattern of the pulse wave in the time domain. © 2006-2015 Asian Research Publishing Network (ARPN).
Department of Electrical Engineering, University of Brawijaya MT. Haryono, Malang, Indonesia
