Etablissement Public De Diffusion Dit 'telediffusion De France'

Etat Francais, Represente Par Le Ministre Des Ptt (centre National

Philippe Piole

A resonant loop current disturbing probe. This probe comprises a conductive loop closed on a photoresistor, a light-emitting diode optically coupled to the photoresistor by an optical fiber and a diode control circuit. This probe is characterized in that it also comprises a variable capacitor connected in parallel to the loop. The loop-capacitor assembly forms a resonant circuit, the capacitor being adjusted in such a way that said circuit resonates at the frequency of the current to be disturbed. Application is to the measurement of the current in antennas.

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Paris, France

Philippe Piole