Development of mechatronic system of pulsation flow for mechanics evaluation of arterial vessel

Pulse diagnosis could be a method to investigate the behaviors of arterial vessel, and the phenomena caused by the pulse are useful for studies on medicine. Here direct investigation to human body has many difficulties because of accuracy and objectivity on measurement, but the investigation which uses the simulator made by the technologies of mechatronics is easy to study the various problems on arterial vessel. In this study, the simulator of artificial circulatory system of human is developed by using water pump and other equipments, and it is tried that pulsation flow is realized in the system for the representation of blood flow. The mismatch between the input signals to the system and the flow caused by the pump is observed here, and the reason of the mismatch is investigated for the revise of this study. By the investigation, the time lag of mechatronic inverter which controls the rotation of the motor is fund to give influence for the mismatch. Then it is concluded that the modification or replace of the inverter can improve the performance of the simulator of the artificial circulatory system.