Patent ID: 8487712

Claim:
A system for transmitting at least one electric pulse for an apparatus for determining a distribution of charges contained in the thickness of an item ( 2 ) made of dielectric material, said transmission system including a transmitter electrode ( 1 , 42 ) for transmitting at least one pulse and a generator ( 3 ) of said pulse, characterized in that said electrode is formed by a transmission line ( 1 ) which is substantially level in relation to the item ( 2 ) to be analyzed and which includes impedance matching means to keep said impedance substantially constant along said transmission line in the passband of said pulse, and characterized in that said impedance matching means ( 12 , 13 , 14 , 18 , 19 , 20 ) include electric link means ( 18 , 19 ) between, on the one hand, the pulse generator ( 3 ) and one end of the transmitter electrode ( 1 , 42 ), and, on the other hand, between a second end of the transmitter electrode and a load ( 20 ), the impedance of which is equal to the characteristic impedance of the electrode.