i'm going to design an intelligent lie detection system for my final year project.inorder to design the system, i need 4 sensors such as heartbeat sensor, blood pressure, respiratory and sweat sensor.i'm going to do the signal analysis in Labview.i'm new to labview. do i need a hardware like DAQ hardware?i'm a student and i cant afford high prices. could you please tell me how i can extract signals from the sensors to Labview?
thank you.