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Abstract : Galvanic skin response (GSR), also known as electrodermal response (EDR), psychogalvanic reflex (PGR), or skin conductance response (SCR), is a method of measuring the electrical resistance of the skin.
There has been a long history of electrodermal activity research, most of it dealing with spontaneous fluctuations.
In our alcohol detection system the ignition of the fuel is regulated by a sensor circuit.The sensor circuit is used to detect whether alcohol was consumed by the driver recently. The device measures electrical resistance between 2 points, and is essentially a type of ohmmeter.
The two paths for current are along the surface of the skin and through the body. Active measuring involves sending a small amount of current through the body.
Due to the response of the skin and muscle tissue to external and internal stimuli, the resistance can vary. When correctly calibrated, the GSR can measure these subtle differences.
There is a relationship between sympathetic activity and emotional arousal, although one cannot identify the specific emotion being elicited. The GSR is highly sensitive to emotions in some people.
Fear, anger, startle response, orienting response and sexual feelings are all among the emotions which may produce similar GSR responses. These reactions have allowed lie detectors to have some success.
At present drunken drivers have increased enormously and so is the deaths due to drunken drivers. The main reason for driving drunk is that the police are not able to check each and every car and even if they catch any one the police can be easily bribed.
So there is a need for a effective system to check drunken drivers.In our alcohol detection system the ignition of the fuel is regulated by a sensor circuit.
The sensor circuit is used to detect whether alcohol was consumed by the driver recently.
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