Circular force generator having a self-contained positioning sensor assembly

An anti-vibration module having integrated electronic controls, the anti-vibration module comprising:

• at least two motors positioned within a housing and having respective rotor masses, wherein the at least two motors selectively operate to define radial speed offsets that further define a counterbalance;
• an integral controller that is positioned within the housing and in operational communication with the at least two motors, wherein the controller comprises:
• an imbalance accelerometer that senses vibrational inputs from a source to be counteracted;
• and
• a rotor position assembly that monitors rotation of the at least two motors and cooperates with the controller and the imbalance accelerometer to define the radial speed offsets of the respective rotor masses, wherein the at least two motors selectively operate in cooperation with the rotor position assembly and the imbalance accelerometer to define the counterbalance, wherein each of the rotor masses includes a magnetic assembly that includes motor communication poles and rotor position sensor poles, wherein the rotor position sensor poles include a home position that is defined during a magnetization process that contemporaneously defines locations of the motor communication poles and the rotor position sensor poles, including the home position of the rotor position sensor poles.

A vibration-cancelling module comprising:

• a first motor positioned within a common housing and having a first eccentric body;
• a second motor positioned within the common housing and having a second eccentric body, wherein the first and second motors selectively operate to define a vibration cancelling force;
• and
• a controller having an accelerometer assembly and a rotor position sensor assembly positioned on a printed circuit board, wherein:
• the controller and the printed circuit board are each positioned within the common housing;
• the controller delivers an electrical current to a stator assembly at least based upon the accelerometer assembly and the rotor position sensor assembly to define the vibration cancelling force;
• each of the first and second eccentric bodies includes a dedicated magnetic assembly;
• each dedicated magnetic assembly includes motor communication poles that are in electromagnetic communication with the first and second motors, respectively;
• each dedicated magnetic assembly includes rotor position sensor poles that are in electromagnetic communication with the rotor position sensor assembly;
• and
• the rotor position sensor poles include a home position pole that identifies a specific rotational position of the rotor position sensor poles with respect to the rotor position sensor assembly.