if i got some of those suction cups and electrostatic gel, what what i need to do to get a heart beat on the scope?
thinking low noise inst amp shrouded in mu metal?
thanks
thinking low noise inst amp shrouded in mu metal?
thanks
Yes, the heartbeat is a muscle and the voltage level that shows up on the skin is around one millivolt, so you need plenty of gain and good CMRR matching. It also helps to have the circuit ground connection (and assuming you're using standard op-amps running on + and - voltages) go to a third connection on a leg, so the common-mode noise isn't so high.CJ said:if i got some of those suction cups and electrostatic gel, what what i need to do to get a heart beat on the scope?
thinking low noise inst amp shrouded in mu metal?
thanks
PRR said:For home EKG I suspect the gel can be strong salt water (improve skin conductivity) and pressure on the electrode
HittMaire said:I'm looking for this information, it's the information I'm looking for.
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