Prototype of a pendulum for deriving the kilogram from electrical quantities

This paper describes a prototype of a pendulum for deriving the kilogram from the electrical quantities. The equivalent inertial mass of the pendulum is derived from the measurement of the position of the moving assembly and the electrical quantities (electromotive force and current) on a coil as a function of time. The prototype shows the functionality of the method, identifying the operative limits for an implementation aimed at measurement at metrological level.