Design of radiofrequency hyperthermia system based on MSP430

In order to solve the problem of inaccurate of the temperature control in radiofrequency hyperthermia,this paper designed MSP430-based radiofrequency hyperthermia system.Using infrared temperature sensor of MLX90615 to measure the target temperature,PID algorithm to adjust the duty cycle of the Pulse Width Modulation(Pulse Width Modulation,PWM)wave from the MSP430,achieved a precise control of temperature of hyperthermia through the closed loop system.Use the keyboard to set the temperature,and the LCD display the measured temperature value real-time.Through the experimental test,this system is stable and reliable,with a temperature control error within±0.5℃,and has good application prospects.

In order to solve the problem of inaccurate of the temperature control in radiofrequency hyperthermia, this paper designed MSP430- based radiofrequency hyperthermia system. Using infrared temperature sensor of MLXg0615 to measure the target temperature, PID algorithm to adjust the duty cycle of the Pulse Width Modulation（Pulse Width Modulation, PWM）wave from the MSP430, achieved a precise control of temperature of hyperthermia through the closed loop system. Use the keyboard to set the temperature, and the LCD display the measured temperature value real-time .Through the experimental test, this system is stable and reliable, with a temperature control error within ±0.5℃, and has good application prospects.