给出了以AT89C2051为核心,利用单片机的运算和控制功能,并采用串口液晶显示模块实时显示所测流速和流量的涡轮流量计设计方案。同时,该方案还提供了可以更改流量计参数的功能,根据不同的油料采取不同的参数适应相应的变化,使油速和油量的测量的精确性得到了很大的提高。该方案由于使用了串口液晶显示模块和E2PROM,因而可在节约系统资源的基础上保证测量精度和系统实时性。 The design scheme of turbine flowmeter with AT89C2051 as the core, using the operation and control functions of the singlechip, and using the serial port LCD module to display the measured flow rate and flow rate in real time is given. At the same time, the program also provides the function of changing the parameters of the flowmeter, adapting to the corresponding changes according to the different parameters of the oil, so that the accuracy of measuring the oil speed and the oil quantity is greatly improved. The program due to the use of a serial port LCD module and E2PROM, which can save system resources on the basis of measurement accuracy and system to ensure real-time.