Stable Pressure Control System of Water Flow Abstract The present paper introduced how realizes with the AT89C51 monolithic integrated circuit adds water the current capacity automatic control. And in detail narrated the system work process and the basic principle of work, but also has made the concrete description on the system hardware composition and its the software design method. The overall system first adds water the current capacity to carry on the examination, then through the gate valve, the pressure transmitter, the fluid position sensor, component and so on flow sensor adds water the current capacity realization control. In survey process, in maintenance system steady stability, adds water the current capacity to carry on the adjustment, enables it to achieve the standard in the scope. The system design process, first is the steady establishment. The steady establishment is meets a standard in this design after the surge tank outside to be mad the source realizes is each component choice. Regarding in the component choice, in line with causes system cost reduction, but the function comprehensive principle, causes the system to be perfect as far as possible. This system only uses a piece of microprocessor realization control keyboard, and may realize the real-time examination, the computation, the demonstration, the printing, reports to the police, function and so on correspondence as well as disturbance automatic reset. This system has the vital significance regarding the real life production, the prospect is broad.
Key word: Steady Pressure field AT89C51 automatic control
