| 摘要 |
PURPOSE:To transmit data signals and power continuously and simultaneously while minimizing the crosstalk between channels by a method wherein a pair of heads assembled with multiple magnetic cores subject to different frequency characteristics are opposed to each other while one of them is mounted on fixed side and the other on moving side. CONSTITUTION:A magnetic core 2 wound around with a coil 1 is fixed in a recession provided in the central part of another magnetic core 4 wound around with another coil 3 to be assembled forming into a concentric circle while the frequency characteristics (a) of magnetic core 4 is specified to be superior to that (b) of magnetic core 2. The coils 1 and 3 are respectively connected to the oscillating sources of frequencies f1 and f2 modulated by data signals to be transmitted. When a pair of heads A, A with the same structure is opposed to each other to be used with one mounted on fixed side and the other on moving side of a machine, the data signals of moving body on two kinds of frequencies can be transmitted to the fixed side, besides minimizing the crosstalk between channels. |
