For test your ECG-circuit

211

02:03:28

Examples of circuit time-constants

High-cut time constant (frequency)
3kohm*1uF=3ms (fc=53Hz)
30kohm*1uF=30ms (fc=5Hz)

Low-cut time constant (frequency)
3uF*1Mohm=3s (fc=0.05Hz)
8nF*1Mohm=8ms (fc=20Hz) (audio-input of tablet)

blue=original
orange=low-cut 0.05Hz
green=low-cut 20Hz

Take care the time-const. of your circuit(included  of display)
Change the time-const. and view the wave.

published 9 years ago

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