Perspiration Test

142

01:55:04

(Note: electronic lie detectors are not healthy for human trust and results of such machine is not admissible in U.S. court of law. Such results to sway case determination judgment casts fate of a case to only two outcomes, excluding judgment in disposition that before and after other case results will affect at case opening that may interject the outcome as a human position of a judgment overruling. The source of this schematic was acquired from Google.com/images search results)

Searching for lie detector brought up this schematic, it was hard to read when I printed it so I put it in everycircuit.com, this one is a game just for fun. This obviously not a polygraph, is also available as a open face circuit for 11.99$ on the internet. It seems very well for testing the level of sweat or perspiration (and water) on the subjects fingers. - nforystek

published 5 years ago

lmccoig

5 years ago

Seems circuit does not respond to changes. Might recheck diagram.

Robert_Kidd

5 years ago

The problem is that this is designed around LED’s that need less current to light up than EC’s default 20mA. Easiest workaround on here is to reduce both LED’s working current to 5mA. Also reduce capacitor to 1nF to reduce switching delay. Helps testing if you remove ground from input and connect a 100k in series with a push button switch across instead.

nforystek

3 years ago

Oh, this doesn't work at all in every circuit, I forget the actual transistors I used but it worked well to the touch

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