CONTACTLESS DEVICE FOR CHARACTERISING AN ELECTRIC SIGNAL

摘要

The present invention concerns a contactless device for characterising the electric signal flowing in an electrical conductor, comprising an electromagnetic inductive coupling means capable of surrounding said conductor, characterised in that it further comprises means for short-circuiting the output of said inductive coupling means, said output being linked to an electronic circuit for measuring the difference in potential relative to a floating ground so as to deliver a signal representative of the voltage between the segment of said conductor passing through the device, and a fixed potential reference. It also concerns a system comprising a plurality of such contactless devices.