Demonstration system for nerve electrical stimulation

The invention provides a nerve electrical stimulation demonstration system. The nerve electrical stimulation demonstration system comprises a microcontroller, an electric signal transmission module and a nerve electrical stimulation box, four electrode sites in the electrode array are taken to output two paths of independent sinusoidal signals, the sinusoidal signals are superposed in the groove to form a real phase interference electric field, peripheral nerves are placed in an electric field area in the groove, the stimulation electrode outputs a path of square wave signals, and the recording electrode records action potential changes of the nerves during electrical stimulation; the electrode sites of the electrode array can be connected in any direction and at any distance, the relative positions of peripheral nerves and electrodes can be conveniently changed through the structures such as the one-dimensional displacement platform and the movable plastic sliding block, the device is easy and convenient to