METHOD FOR GENERATION OF SOUND WAVE Russian patent published in 1997 - IPC

FIELD: sound instruments. SUBSTANCE: magnetic field oscillations are converted into mechanical vibration by means of running electric current through solenoid with multiple winding keeping condition of relative compensation of magnetic fields of layers in solenoid caused by one or two conductors. Mechanical vibration which is generated travels along solenoid axis and are detected with sound wave receiver. When one conductor is used solenoid layers have opposite direction of winding. EFFECT: increased functional capabilities. 3 cl