Application of High-Precision Fuzzy Control Alorithm with Self-Regulation Factor in Rfhyperthermia System

RF hyperthermia system is a kind of medical device to restrain and kill cancer tumor base on RF heating technique and biology heating effect theory. The mathematical model of the control system is very difficult to be formed due to the extreme complication physical process of temperature increase during the thermal treatment and the various structure and characteristic of internal tissues. In this paper, we present a new fuzzy control algorithm, in which a self-regulation factor is adopted to realize real-time temperature control with high-precision controller. By means of software arithmetic and hardware adjustment, accurate temperature and time control can be achieved in this system.