| 摘要 |
PURPOSE:To detect mirror distortion, by receiving a wave sent from a communication antenna to be detected for mirror distortion with plural reception antennas, and finding the phase distribution of an electric field on the aperture planes of the antennas by collecting and processing the amplitude and the phase of a received wave. CONSTITUTION:The wave is radiated by exciting the communication antenna 10 to be detected for mirror distortion with a wave oscillating source 11. A reception system combined with plural reception antennas 12 and receivers 13 is arranged in the wave radiation direction, and each receiver 13 detects the amplitude and the phase of the wave received by the antenna 12, and sends them to a signal processor 14. The signal processor 14 collects and processes a signal detected by each receiver, and finds the phase distribution from electric field distribution on the aperture plane of the antenna 10, then, detects the mirror distortion. In such way, it is possible to easily detect the mirror distortion by utilizing the wave of a communication frequency without using a specific structure or auxiliary tool. The device is especially suitable for mirror inspection at a remote place or on a hill.
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