Heteropolar machine for demodulating polyphase voltages interfering among themselves

A demodulator for the demodulation of polyphase voltages of n phases, interfering among themselves which constitute a system of polyphase pseudo-sinusoidal voltages modulated in amplitude to a pulsation epsilon , in order to obtain a system of polyphase voltages of pulsation epsilon . The demodulator is preferably formed by n heteropolar synchronous rotating polyphase machines and includes n stators of n phases, fed by n systems of polyphase pseudo-sinusoidal voltages modulated in amplitude to a pulsation epsilon , and of the form in which i represents the index of the group of voltages and varies from 1 to n, and p represents the index of phase of the group of voltages and varies from 1 to n. Mounted for rotation with the n stators are n wound rotors, each including magnetic circuits made up of a low loss material and capable of passing an alternating magnetic flux without damping, each rotor having the same number of poles as the corresponding stator. Slip-rings that rotate with the rotors and stationary brushes are provided to collect n systems of polyphase voltages of pulsation epsilon from the n rotors.