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Medical Instrumentation 학습노트 7

Medical Instrumentation 학습노트 7. 생체의공학과 2010103805 이규락. Biopotential Amplifier Design. 심전도의 측정. R. 1). T. P. 최대 5mV +-5mV range. Q. S. 2 ) BW(Band Width) : 0.05-100Hz. 3) DC contact potential : +-300mV. 4 ) Contact impedance : 10k Ω ( 잡음이 많을 때 , 줄어주면 좋다 . 젤 , 각질제거 등 ).

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Medical Instrumentation 학습노트 7

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  1. Medical Instrumentation학습노트7 생체의공학과 2010103805 이규락

  2. Biopotential Amplifier Design • 심전도의 측정 R 1) T P 최대 5mV +-5mV range Q S 2) BW(Band Width) : 0.05-100Hz 3) DC contact potential : +-300mV 4) Contact impedance : 10kΩ (잡음이 많을 때, 줄어주면 좋다. 젤, 각질제거 등)

  3. Biopotential Amplifier Design • 전원 및 소자 1) ADC 입력범위 : +-5V 2) 전원 : +-5V 3) OPT Amp : +-6V에서 saturation 60Hz power line LA Vecq RA RL

  4. Biopotential Amplifier Design Non-inverting Amp with Low-pass Filter High-pass Filter Differential Amp Differential input/ Differential output

  5. V3 V4 V5 Biopotential Amplifier Design 75mV 5V 4.5V 300mV 떠있는 경우에도 Op Amp가 포화되지 않도록 증폭을 잘 조절한다. • Nonivnerting V4에서 1000/15(약 67배) 증폭 4.575V (4.5V+15X5mV) • HPF R5C1=3.3 , C2=8μF • LPF

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