电子测试
電子測試
전자측시
ELECTRONIC TEST
2013年
19期
73-74
,共2页
张思远%王迪%白璐%韩醒之
張思遠%王迪%白璐%韓醒之
장사원%왕적%백로%한성지
射频热疗%红外测温%PWM%PID%MFC
射頻熱療%紅外測溫%PWM%PID%MFC
사빈열료%홍외측온%PWM%PID%MFC
Radiofrequency hyperthermia%Infrared temperature measurement%PWM%PID%MFC
为了解决射频热疗中温度控制不精确的问题，设计了基于MSP430的射频热疗系统。采用红外温度传感器MLX90615测量靶区温度，利用PID算法对MSP430输出的脉冲宽度调制(Pulse Width Modulation，PWM)波的占空比进行调节，通过闭环系统实现了对射频热疗温度精确控制。使用键盘对温度进行设定，液晶屏实时显示测量温度值。经实验测试，本系统稳定可靠，温度控制误差在±0.5℃以内，具有良好的应用前景。
為瞭解決射頻熱療中溫度控製不精確的問題，設計瞭基于MSP430的射頻熱療繫統。採用紅外溫度傳感器MLX90615測量靶區溫度，利用PID算法對MSP430輸齣的脈遲寬度調製(Pulse Width Modulation，PWM)波的佔空比進行調節，通過閉環繫統實現瞭對射頻熱療溫度精確控製。使用鍵盤對溫度進行設定，液晶屏實時顯示測量溫度值。經實驗測試，本繫統穩定可靠，溫度控製誤差在±0.5℃以內，具有良好的應用前景。
위료해결사빈열료중온도공제불정학적문제，설계료기우MSP430적사빈열료계통。채용홍외온도전감기MLX90615측량파구온도，이용PID산법대MSP430수출적맥충관도조제(Pulse Width Modulation，PWM)파적점공비진행조절，통과폐배계통실현료대사빈열료온도정학공제。사용건반대온도진행설정，액정병실시현시측량온도치。경실험측시，본계통은정가고，온도공제오차재±0.5℃이내，구유량호적응용전경。
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.
