Patent ID: 10258945

Abstract:
A mechanical resonant system includes a voice coil actuator, a payload mass (110A,110B), a driver mass (120A,120B,120C) and a frame mass (130A,130B,130C). The voice coil actuator includes a bobbin (160), an electrical conductor (170) and a magnet assembly (180,190). The bobbin is made from a material that is electrically nonconductive. The electrical conductor is coupled to the bobbin. The magnet assembly has a housing (180) and a magnet (190) coupled to the housing. At least a portion of the bobbin (160) and at least a portion of the electrical conductor (170) are configured to be positioned within a gap formed by the magnet (190) and the housing (180). The bobbin and the magnet assembly are configured to oscillate when an alternating current is applied to the electrical conductor. The payload mass (110A,110B) is coupled to one of the bobbin and the housing. The driver mass (120A,120B,120C) is coupled to the other of the bobbin and the housing. The frame mass (130A,130B,130C) is coupled to each of the payload mass and the driver mass. The payload mass, the driver mass, and the frame mass are each independently moveable with respect to one another.