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is there any element that can sense a heart beat?

Question asked by nasrin in #Coffee Room on Jan 23, 2009
nasrin
nasrin · Jan 23, 2009
Rank E1 - BEGINNER
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 sound.is it possible ? if u can help me then iam so thankful. Posted in: #Coffee Room
Ashraf HZ
Ashraf HZ · Jan 24, 2009
Rank A2 - PRO
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
xheavenlyx · Jan 25, 2009
Rank B1 - LEADER
And shield it from the user. So you don't accidentally fry your victim..umm I mean, your subject.

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