【摘要】 利用时差法的改进算法设计出超声流量计,从测量原理上提高了流量测量的精度,同时给出以MSP430单片机为核心的流量测量系统的硬件电路设计,着重叙述了超声波发射与接收电路的具体实现,并提出低功耗的设计方法。更多还原

【Abstract】 A improved algorithm on transit-time method is used to design a ultrasonic flow meter, which enhances the accuracy of flow measurement on the measurement principle. A hardware circuit of flow measurement system using MSP430 microprocessor as a core is given, the key circuit such as circuit of ultrasonic transmitting and ultrasonic signal receiving is described particularly, and the design method of low power is presented.更多还原