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You are here: Home / Replies / A polygraph (popularly

A polygraph (popularly

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Projects › Projects › LIE DETECTER › A polygraph (popularly

June 11, 2012 at 11:20 am #7995
Amrith
Participant

A polygraph (popularly referred to as a lie detector) measures and records several physiological indices such as blood pressure, pulse, respiration, and skin conductivity while the subject is asked and answers a series of questions.The belief is that deceptive answers will produce physiological responses that can be differentiated from those associated with non-deceptive answers.

Google for circuits to build a basic lie detector.

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