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How to design a simple heart beat detector?

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dudleyzty

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I want to design a simple heart beat detector which will be 3V power
supply. Please give me some tips.Thanks anyway!
 

dudleyzty

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Thank you all for your help!

I have found very useful imformation. Thanks to all of you!

But in fact,I just need to build a detect curcuit like those on treadmill,
so my result needn't to be precise.Anyone can give me some
idea?
 

Ratburn

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I suggest you visit ti.com, analog.com, linear.com etc. and do a search on ECG and EKG ( electrocardiogram ). Many of these semiconductor vendors have app. notes for simple ECG amplifiers and heart rate determination.

Ratburn
 

flatulent

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acoustic

Don't forget your acoustic options. You can use a microphone and a low pass filter to get the heart beat sound. Then you can use a comparator to get a logic pulse for each heart cycle.
 

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