| 摘要 |
The invention is composed of a transmitter 1 and its antenna 2, two take-up antennas 3 and an electronics box 4. The transmitter, connected to its antenna arranged at the location of the passage, generates an electromagnetic field whose induction is strongly increased, during a passage, at the two pick-up antennas actuated one after the other. The electronics box processes the desired data. <IMAGE>
|
