A safety socket device includes a base having two conductor bars, and two female contact strips for receiving prongs of plugs. The invention further relates to a method for the production of the inventive derivatives and to their use. In this manner, the system compensates for and corrects lateral runout that exists between two concentrically attached rotating shafts. A signal generation module is operable to generate a control signal based on the instantaneous value and the integrated value, and a control module is operable to perform a predefined function in response to the control signal. In yet another embodiment, the present invention discloses methods for proffering and processing multiple biometric samples to facilitate authorization of transactions.