RESUMO
Objective To improve the theory and practice learning of the students majoring in medical imaging by investigating the teaching method of"Medical Electronics"course.Methods The problems in teaching"Medical Electronics"course were summarized, and the causes were analyzed. Results Some improvement measures were proposed for teaching"Medical Electronics"course with considerations on the professional background of the students and the characteristics of the course, which proved its efficiency through practical trial. Conclusion For teaching medical students in electronics technology course,the methods such as integrating and optimizing contents of course,guided teaching as well as experiments and discussions by groups,have significant effects on improving students'learning enthusiasm and teaching efficiency.
RESUMO
we have designed a program-controlled high-fi amplifier for EMG.Its gain can be controlled by computer.The program-contralled circuit is implemented with numerical control resistor.The amplifier can be used in automatically measuring EMG signals over 100?v.The circuit is characterized by easy de- sign,simple programing and convenient control.