Dept. of Biomed. Eng.BME302: Medical InstrumentationKyung Hee Univ. 1 최법경 Biomedical Instrumentation Report 7 2010103819 최법경.

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Presentation transcript:

Dept. of Biomed. Eng.BME302: Medical InstrumentationKyung Hee Univ. 1 최법경 Biomedical Instrumentation Report 최법경

Dept. of Biomed. Eng.BME302: Medical InstrumentationKyung Hee Univ. 2 최법경 Contents Bio-potential Amplifier Design Design signal range Power and devises Stray capacitance Design circuit with IA A part B part C part D part

Dept. of Biomed. Eng.BME302: Medical InstrumentationKyung Hee Univ. 3 최법경 Bio-potential Amplifier Design

Dept. of Biomed. Eng.BME302: Medical InstrumentationKyung Hee Univ. 4 최법경 Bio-potential Amplifier Design

Dept. of Biomed. Eng.BME302: Medical InstrumentationKyung Hee Univ. 5 최법경 Bio-potential Amplifier Design Stray capacitance 부유 용량이라고도 하고 Parasitic capacitance( 기생 용량 ) 이라고도 한다. 이번 회로 디자인에서는 공기와 사람 사이 부유 용량이 문제가 된다. 그림과 같이 원래 보기에는 커페시터가 보이지 않지만 도선과 도선 사이에 자그마한 커페시터 가 존재하는 것 처럼 작동하는 것 그 커페시터를 부유용량이라고 한다.

Dept. of Biomed. Eng.BME302: Medical InstrumentationKyung Hee Univ. 6 최법경 Bio-potential Amplifier Design LA RA RL + Vi -

Dept. of Biomed. Eng.BME302: Medical InstrumentationKyung Hee Univ. 7 최법경 Bio-potential Amplifier Design Design circuit with IA 참고 motion artifact

Dept. of Biomed. Eng.BME302: Medical InstrumentationKyung Hee Univ. 8 최법경 Bio-potential Amplifier Design Design circuit with IA 전체 회로도

Dept. of Biomed. Eng.BME302: Medical InstrumentationKyung Hee Univ. 9 최법경 Bio-potential Amplifier Design 300mV 305mV

Dept. of Biomed. Eng.BME302: Medical InstrumentationKyung Hee Univ. 10 최법경 Bio-potential Amplifier Design 4.5mV 4.575mV

Dept. of Biomed. Eng.BME302: Medical InstrumentationKyung Hee Univ. 11 최법경 Bio-potential Amplifier Design 75mV

Dept. of Biomed. Eng.BME302: Medical InstrumentationKyung Hee Univ. 12 최법경 Bio-potential Amplifier Design 5V