Design of RF Heat Therapy System Based on DS18B20 and FPGA

In the process of research and development of this subject, it compares the three major heat physics technology. According to the organizational characteristics of glioma, it uses radio frequency (RF) capacitive heating method. For conventional temperature sensor's interchangeability and unstable control method faults, it designed an implement RF heat treatment temperature field measure and temperature control system which use high precision digital temperature sensor DS18B20 and programmable logic device FPGA. This system contains temperature setting, temperature display, control algorithm, the FPGA chip configuration, signal power amplifier and the control of DS18B20 function. Finally, this system is used for pork to record the temperature field of heating experiments of center, edge and surface temperature.