Control for surgical handpiece

A powered surgical handpiece including a housing, a printed circuit board, a sensor, and an actuator assembly. The housing has a longitudinal axis extending from a first end to a second end of the housing. The printed circuit board has a first face and a second opposing face. The first and second faces extend perpendicular to the longitudinal axis. The sensor is coupled to the first face of the printed circuit board. The sensor is centered along the longitudinal axis of the housing. The actuator assembly includes a lever and an actuator. The lever is pivotally coupled to the housing. The levermaintains a magnet slidably positionable along the lever. The magnet is positionable to be proximal to the sensors. 种电动手术手持件，包括：壳体、印刷电路板、传感器以及致动器组件。所述壳体具有从所述壳体的第端延伸到第二端的纵轴。所述印刷电路板具有第面和第二相对面。所述第面和所述第二面垂直于所述纵轴延伸。所述传感器联接到所述印刷电路板的所述第面。所述传感器沿着所述壳体的所述纵轴居中。所述致动器组件包括杆和致动器。所述杆枢转地联接到所述壳体。所述杆保持磁体可沿着所述杆可滑动地定位。所述磁体可定位成接近于所述传感器。