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nasrin • Jan 23, 2009

is there any element that can sense a heart beat?

hello friends!! i just wanna do a mini project on electronic stethescope.but most of them told me that there is no element to sense such a feeble it possible ? if u can help me then iam so thankful.
You can sense it, but you'll need to amplify it! Just use a normal microphone (like the one used on headphones) and amplify the signals. Make sure you shield the mike from background noise though.
xheavenlyx • Jan 25, 2009
And shield it from the user. So you don't accidentally fry your victim..umm I mean, your subject.

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