A wearable wireless device designed for surface electromyography acquisition

A wearable surface electromyography (sEMG) acquisition system with simple structure and high performance cost ratio is designed for the portability. Both signal collection part and receiving part are included. The former one involves surface electrodes, signal processing circuits, A/D conversion, three-axis acceleration sensor and main control unit, among which the signal processing circuits include pre-amplifier circuit, filter circuit and voltage lifting circuit. The later one includes main control unit, USB interface circuit and receiving host. There is eight-channel concurrency for wireless sEMG signal acquisition and analysis. The system can be used to research and analyze the motor pattern of the human body which shows greater sEMG signal collection. It can also be applied to rehabilitation therapy, motor assessment and pathological diagnosis.