| 摘要 |
The proposed humidity controller for a root layer of soil is designed for installing at a collecting pipe in a drain well. The humidity controller contains a water level transducer, a meteorological precipitation transducer, a temperature transducer, an ambient air humidity transducer, a wind velocity transducer, a working chamber, an amplifying chamber, and a microprocessor control unit. The working chamber and the amplifying chamber are connected to the collecting pipe and the drain well via electromagnetic valves. Additionally, the amplifying chamber is connected to the atmosphere via an electromagnetic valve. The water level transducer is arranged in a pipe, which is installed in the drain well and coupled with the well space via an electromagnetic valve. The electromagnetic valves are controlled by the output signals of the control unit. The outputs of the transducers are connected to the corresponding inputs of the control unit via wireless interface facilities. |
