| 摘要 |
PURPOSE:To attain ease of maintenance with low equipment cost and stable drying of a microwave circuit at all times by using a surplus output of a solar battery so as to drive a compressor at sunshine duration. CONSTITUTION:The compressor 17 is connected via an inverter 8 in parallel with a radio communication equipment 5 to a power supply circuit placed nearer the equipment 5 than the battery 2 in float charging by the solar battery 1. The pipe work is installed from the compressor 17 to a bomb 13 via a magnet valve 14 as a check valve and from the bomb 13 to a waveguide 6 and an antenna feeder 7 via a pressure reducing valve 12 and a desiccator 11. Since the constitution is formed in this way, a dry air is sealed in the waveguide 6 and the antenna feeder 7 under a desired pressure at all times, allowing to keep drying state. Further, the compressor 17 is not driven other then during the sunshine duration, then the power of the battery 2 is not especially consumed and a stable power is supplied always from th battery 2 to the equipment 5. |
