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http://dx.doi.org/10.5369/JSST.2007.16.1.044

Blood pressure simulator using hybrid controller  

Kim, C.H. (Dept. of Electronic Engineering, Pusan National University)
SaGong, G. (Dept. of Electrical Engineering, Dong-A University)
Nam, Gi-Gon (Dept. of Electronic Engineering, Pusan National University)
Jeon, R. (Dept. of Biomedical Engineering, College of Medicine, Pusan National University)
Publication Information
Journal of Sensor Science and Technology / v.16, no.1, 2007 , pp. 44-51 More about this Journal
Abstract
A hybridized simulator for generating blood pressure waveform is proposed to study the remedy and/or evaluation of the conventional sphygmomanometer utilizing the oscillometric method which is widely applied. The blood pressure of a flowing fluid was controlled for the blood vessel's condition caused by a rhythmical and periodical contraction/relaxation because of the special excitatory and conductive system of the heart. In this study, a hybridized controller composed of the PI feedback controller and the feedforward controller. The inverse dynamics function is proposed to operating the control valve while the pressure is applied in an oil pressure tank. The proposed hybrid simulator reproducing the blood pressure waveform in an artificial blood vessel has kept the control performance consistent over all range. Based on these results, the proposed simulators could be applied to the development and compensation of the non invasive sphygmomanometer type as well as to study the characteristics of the blood pressure and blood vessel.
Keywords
blood pressure; automatic control; oscillometric method; proportional control valve; hybridized controller;
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