Design and Development of Lie Detector
L H Anjaneya · International Journal of Engineering Research and · 2020
Multi parameters like skin temperature, body resistance, heart rate, electrocardiogram, pressure of end tidal cardbondioxide, oxygen saturation are utilized to design a lie detector device.Skin temperature measure by temperature sensor monitors the difference in temperature during the procedure.Optical reflective sensor extracts the signal of heart rate.The changes in body resistance during the questionnaire is monitored using body resistance sensor.The acquired signals are transmitted to the computer via USB communication and processed.