TY - GEN
T1 - System and Characterization Method for Controlled Microwave Heating in Medical Applications
AU - Pawar, Shreeniket
AU - Westhafer, Benjamin
AU - Attaluri, Anilchandra
AU - Tofighi, Mohammad Reza
N1 - Publisher Copyright:
© 2024 IEEE.
PY - 2024
Y1 - 2024
N2 - This paper presents a custom-built 10 W microwave heating device for medical applications, along with a method for characterizing the system heating response. Closed-loop proportional-integral-derivative (PID) temperature control requires optimization of the controller gains to achieve proper response parameters such as fast rise time and minimum steady-state error. This in turn requires the characterization of the microwave heating system (plant). The microwave heating (average) power is adjusted through pulse-width-modulation (PWM), and the temperature response is measured by infrared radiometry. The preliminary results presented in this paper are for microwave heating on tissue phantom brought to 35°C (surface body temperature). The best fit response through PID autotune application in MATLAB, for 20, 40 and 60% PWM (2, 4, and 6 W power respectively) demonstrates that a first order system reasonably and consistently represents the microwave heating response.
AB - This paper presents a custom-built 10 W microwave heating device for medical applications, along with a method for characterizing the system heating response. Closed-loop proportional-integral-derivative (PID) temperature control requires optimization of the controller gains to achieve proper response parameters such as fast rise time and minimum steady-state error. This in turn requires the characterization of the microwave heating system (plant). The microwave heating (average) power is adjusted through pulse-width-modulation (PWM), and the temperature response is measured by infrared radiometry. The preliminary results presented in this paper are for microwave heating on tissue phantom brought to 35°C (surface body temperature). The best fit response through PID autotune application in MATLAB, for 20, 40 and 60% PWM (2, 4, and 6 W power respectively) demonstrates that a first order system reasonably and consistently represents the microwave heating response.
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U2 - 10.1109/IMS40175.2024.10600307
DO - 10.1109/IMS40175.2024.10600307
M3 - Conference contribution
AN - SCOPUS:85200889968
T3 - IEEE MTT-S International Microwave Symposium Digest
SP - 808
EP - 811
BT - 2024 IEEE/MTT-S International Microwave Symposium, IMS 2024
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2024 IEEE/MTT-S International Microwave Symposium, IMS 2024
Y2 - 16 June 2024 through 21 June 2024
ER -