Machine control circuit realizes the functions of water level detect, motor driven, water import and export, it consists of water level detector, motor, transmission system components and penstocks.

机械控制电路实现水位检测、电机驱动、进水、排水等功能，主要由水位检测器、电动机、传动系统部件、进水排水电磁阀组成。

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The design of the single chip system, sample box thermostat circuit, sample position detecting circuit and step motor control circuit are discussed.

着重讨论了单片机系统、样品箱恒温电路、样品位置检测电路和步进电机控制电路的设计。

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Among them the control system of hardware has introduced the peripheral circuit including main chip mainly, the module the signal gathers and the motor driving module.

其中硬件控制系统主要介绍了包括主芯片的外围电路，信号采集模块以及电机驱动模块。

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