Abstract
A new method to measure the pulse wave velocity in blood vessel was studied because the velocity is one of the important signs to show arteriosclerotic. Assuming one dimensional wave propagation, the wave velocity can be determined by the pressures measured at three different points along the axis. This method is effective even for arbitrary boundary conditions. Fundamental experiments of the wave velocity in silicon rubber tube were executed to certify the new method. Experimental results suggest that the new method might be used to the blood vessel of human body.