| 摘要 |
PURPOSE:To improve the reliability of data transmission without imparting trouble to the radiowave of a radar, by arranging a light receiving part at the rotary center of a rotating part or a fixing part, and receiving the light from a light projecting part. CONSTITUTION:A radiowave in a rectangular waveguide 121 on the side of a fixed part 12 is converted into an electric signal at a door knob type probe 132. The signal is transmitted to a door knob type probe 131 through a rotary transmitting path comprising a fixed part cylinder 122, a rotating part cylinder 112 and a conductor 13. The signal is transmitted to a waveguide 111. The data from a radar antenna is transduced into light. The light is emitted from a light projecting part 18 that is provided at a part directly beneath the probe 132 through an optical fiber 181. The light is inputted into a light receiving part 17 that is provided on the fixing part 12 at a rotary center 21. Therefore, the highly reliable data can be transmitted without imparting trouble to the radar wave. |
