... polygraph system is consisted of sensors , main unit , microprocessor ,and test software.1.Determined Parameters1.1 GSR (Galvanic Skin ... sensor to digital signals, and then send them to microprocessor.2.3 Microprocessor: The device processes the test prepare, test control ... analysis.2.4 Test Software: The executable files stored on microprocessor. It could process the edition, display, print, storage, ...