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EKG and Polygraph

  • Thread starter Abstract Dissonance
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Abstract Dissonance

Jan 1, 1970
0
What devices are used to detect these types of signals? I was thinking about
trying to make one but wouldn't know where to start. Is it simply using a
darlington transistor for the "probe"(or maybe an instrumentation op amp)?

Thanks,
Jon
 
D

David L. Jones

Jan 1, 1970
0
Abstract said:
What devices are used to detect these types of signals? I was thinking about
trying to make one but wouldn't know where to start. Is it simply using a
darlington transistor for the "probe"(or maybe an instrumentation op amp)?

Thanks,
Jon

Silicon Chip did an article last year on it:
http://www.siliconchip.com.au/cms/A_103787/article.html

There was also an older parallel port based one in EA magazine about
the mid 90's I think.

Dave :)
 
D

David L. Jones

Jan 1, 1970
0
Luhan said:
Yea, but you don't get to see it!

It's like a peep show, you gotta put your money in the slot to see the
whole thing...

Dave :)
 
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